Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "./SignatureChecker.sol";
import "./SignerManager.sol";

contract Access is ERC1155, Ownable, ReentrancyGuard, SignerManager{
    mapping(uint256 => string) public tokenURIs;
    mapping(uint256 => uint256) public tokenPrices;
    mapping(uint256 => bool) public mintingActive;
    mapping(bytes32 => bool) public usedMessages;
    mapping(uint256 => uint256) public maxSupply;
    mapping(uint256 => uint256) public totalSupply;

    string public name;
    string public symbol;

     constructor(
        string memory _name,
        string memory _symbol
    ) ERC1155("") {
        name = _name;
        symbol = _symbol;
    }

    /** @dev Mint a token
     */
    function mint(uint256 tokenId, bytes calldata signature)
        public
        payable
        nonReentrant
    {
        // needs metadata, a price, and active minting
        require(bytes(tokenURIs[tokenId]).length > 0, "URI not set");
        require(mintingActive[tokenId], "Minting not active");

        // check the balance (wallets can only use one nft - prevent double minting)
        require(balanceOf(msg.sender, tokenId) == 0, "Already minted");

        // check max supply (if set)
        if (maxSupply[tokenId] > 0) {
            require(totalSupply[tokenId] < maxSupply[tokenId], "Max supply reached");
        }

        if (signature.length > 0) {
            // check the signature (includes a custom price)
            bytes memory data = abi.encode(this, msg.sender, tokenId, msg.value);            
            SignatureChecker.requireValidSignature(
                signers,
                data,
                signature,
                usedMessages
            );
        }
        else {
            // minting without a signature uses the standard price
            // which is 0 if not set
            require(msg.value == tokenPrices[tokenId], "Incorrect value");
        }
        // mint
        totalSupply[tokenId] += 1;
        _mint(msg.sender, tokenId, 1, "");
    }

    /** @dev Return the URI for a token
     */
    function uri(uint256 tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        return tokenURIs[tokenId];
    }

    /** @dev Set a price for a token
     */
    function setTokenPrice(uint256 tokenId, uint256 price) public onlyOwner {
        tokenPrices[tokenId] = price;
    }

    /** @dev Set the metadata for a token
     * @param tokenId The token ID
     * @param _uri The metadata uri (e.g. ipfs://...)
     */
    function setTokenURI(uint256 tokenId, string memory _uri) public onlyOwner {
        tokenURIs[tokenId] = _uri;
    }

    /** @dev Set the minting active flag
     */
    function toggleMintingActive(uint256 tokenId) public onlyOwner {
        mintingActive[tokenId] = !mintingActive[tokenId];
    }

    /** @dev Set token's max supply */
    function setMaxSupply(uint256 tokenId, uint256 supply) public onlyOwner {
        maxSupply[tokenId] = supply;
    }

    /**
     * @dev Helper to check if a signature has been used
     * @param to The address to mint to
     * @param tokenId The max number of tokens to mint
     */
    function sigUsed(
        address to,
        uint256 value,
        uint256 tokenId
    ) public view returns (bool) {
        bytes memory data = abi.encode(this, to, tokenId, value);
        bytes32 message = SignatureChecker.generateMessage(data);
        return usedMessages[message];
    }

    /** 
     * @dev Disable transfers
    */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public override {
        revert("Transfers disabled");
    }

    /** 
     * @dev Disable batch transfers
    */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public override {
        revert("Transfers disabled");
    }

    /**
     * @dev Withdraw ether to owner's wallet
     */
    function withdrawETH() public onlyOwner {
        uint256 balance = address(this).balance;
        (bool success, ) = payable(msg.sender).call{value: balance}("");
        require(success, "Withdraw failed");
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC1155/ERC1155.sol)

pragma solidity ^0.8.0;

import "./IERC1155.sol";
import "./IERC1155Receiver.sol";
import "./extensions/IERC1155MetadataURI.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of the basic standard multi-token.
 * See https://eips.ethereum.org/EIPS/eip-1155
 * Originally based on code by Enjin: https://github.com/enjin/erc-1155
 *
 * _Available since v3.1._
 */
contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
    using Address for address;

    // Mapping from token ID to account balances
    mapping(uint256 => mapping(address => uint256)) private _balances;

    // Mapping from account to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json
    string private _uri;

    /**
     * @dev See {_setURI}.
     */
    constructor(string memory uri_) {
        _setURI(uri_);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC1155).interfaceId ||
            interfaceId == type(IERC1155MetadataURI).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC1155MetadataURI-uri}.
     *
     * This implementation returns the same URI for *all* token types. It relies
     * on the token type ID substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * Clients calling this function must replace the `\{id\}` substring with the
     * actual token type ID.
     */
    function uri(uint256) public view virtual override returns (string memory) {
        return _uri;
    }

    /**
     * @dev See {IERC1155-balanceOf}.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
        require(account != address(0), "ERC1155: address zero is not a valid owner");
        return _balances[id][account];
    }

    /**
     * @dev See {IERC1155-balanceOfBatch}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] memory accounts, uint256[] memory ids)
        public
        view
        virtual
        override
        returns (uint256[] memory)
    {
        require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");

        uint256[] memory batchBalances = new uint256[](accounts.length);

        for (uint256 i = 0; i < accounts.length; ++i) {
            batchBalances[i] = balanceOf(accounts[i], ids[i]);
        }

        return batchBalances;
    }

    /**
     * @dev See {IERC1155-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC1155-isApprovedForAll}.
     */
    function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[account][operator];
    }

    /**
     * @dev See {IERC1155-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not token owner or approved"
        );
        _safeTransferFrom(from, to, id, amount, data);
    }

    /**
     * @dev See {IERC1155-safeBatchTransferFrom}.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not token owner or approved"
        );
        _safeBatchTransferFrom(from, to, ids, amounts, data);
    }

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, from, to, ids, amounts, data);

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }
        _balances[id][to] += amount;

        emit TransferSingle(operator, from, to, id, amount);

        _afterTokenTransfer(operator, from, to, ids, amounts, data);

        _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; ++i) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
            _balances[id][to] += amount;
        }

        emit TransferBatch(operator, from, to, ids, amounts);

        _afterTokenTransfer(operator, from, to, ids, amounts, data);

        _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
    }

    /**
     * @dev Sets a new URI for all token types, by relying on the token type ID
     * substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * By this mechanism, any occurrence of the `\{id\}` substring in either the
     * URI or any of the amounts in the JSON file at said URI will be replaced by
     * clients with the token type ID.
     *
     * For example, the `https://token-cdn-domain/\{id\}.json` URI would be
     * interpreted by clients as
     * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`
     * for token type ID 0x4cce0.
     *
     * See {uri}.
     *
     * Because these URIs cannot be meaningfully represented by the {URI} event,
     * this function emits no events.
     */
    function _setURI(string memory newuri) internal virtual {
        _uri = newuri;
    }

    /**
     * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _mint(
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);

        _balances[id][to] += amount;
        emit TransferSingle(operator, address(0), to, id, amount);

        _afterTokenTransfer(operator, address(0), to, ids, amounts, data);

        _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _mintBatch(
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; i++) {
            _balances[ids[i]][to] += amounts[i];
        }

        emit TransferBatch(operator, address(0), to, ids, amounts);

        _afterTokenTransfer(operator, address(0), to, ids, amounts, data);

        _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
    }

    /**
     * @dev Destroys `amount` tokens of token type `id` from `from`
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `from` must have at least `amount` tokens of token type `id`.
     */
    function _burn(
        address from,
        uint256 id,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }

        emit TransferSingle(operator, from, address(0), id, amount);

        _afterTokenTransfer(operator, from, address(0), ids, amounts, "");
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     */
    function _burnBatch(
        address from,
        uint256[] memory ids,
        uint256[] memory amounts
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");

        for (uint256 i = 0; i < ids.length; i++) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
        }

        emit TransferBatch(operator, from, address(0), ids, amounts);

        _afterTokenTransfer(operator, from, address(0), ids, amounts, "");
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC1155: setting approval status for self");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `ids` and `amounts` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}

    /**
     * @dev Hook that is called after any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `id` and `amount` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}

    function _doSafeTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
                if (response != IERC1155Receiver.onERC1155Received.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non-ERC1155Receiver implementer");
            }
        }
    }

    function _doSafeBatchTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (
                bytes4 response
            ) {
                if (response != IERC1155Receiver.onERC1155BatchReceived.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non-ERC1155Receiver implementer");
            }
        }
    }

    function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
        uint256[] memory array = new uint256[](1);
        array[0] = element;

        return array;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)

pragma solidity ^0.8.0;

import "../IERC1155.sol";

/**
 * @dev Interface of the optional ERC1155MetadataExtension interface, as defined
 * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155MetadataURI is IERC1155 {
    /**
     * @dev Returns the URI for token type `id`.
     *
     * If the `\{id\}` substring is present in the URI, it must be replaced by
     * clients with the actual token type ID.
     */
    function uri(uint256 id) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
     * @dev Handles the receipt of a single ERC1155 token type. This function is
     * called at the end of a `safeTransferFrom` after the balance has been updated.
     *
     * NOTE: To accept the transfer, this must return
     * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
     * (i.e. 0xf23a6e61, or its own function selector).
     *
     * @param operator The address which initiated the transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param id The ID of the token being transferred
     * @param value The amount of tokens being transferred
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
     */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
     * @dev Handles the receipt of a multiple ERC1155 token types. This function
     * is called at the end of a `safeBatchTransferFrom` after the balances have
     * been updated.
     *
     * NOTE: To accept the transfer(s), this must return
     * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
     * (i.e. 0xbc197c81, or its own function selector).
     *
     * @param operator The address which initiated the batch transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param ids An array containing ids of each token being transferred (order and length must match values array)
     * @param values An array containing amounts of each token being transferred (order and length must match ids array)
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
     */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
// Copyright (c) 2021 the ethier authors (github.com/divergencetech/ethier)
pragma solidity >=0.8.0 <0.9.0;

import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

/**
@title SignatureChecker
@notice Additional functions for EnumerableSet.Addresset that require a valid
ECDSA signature of a standardized message, signed by any member of the set.
 */
library SignatureChecker {
    using EnumerableSet for EnumerableSet.AddressSet;

    /**
    @notice Requires that the message has not been used previously and that the
    recovered signer is contained in the signers AddressSet.
    @dev Convenience wrapper for message generation + signature verification
    + marking message as used
    @param signers Set of addresses from which signatures are accepted.
    @param usedMessages Set of already-used messages.
    @param signature ECDSA signature of message.
     */
    function requireValidSignature(
        EnumerableSet.AddressSet storage signers,
        bytes memory data,
        bytes calldata signature,
        mapping(bytes32 => bool) storage usedMessages
    ) internal {
        bytes32 message = generateMessage(data);
        require(
            !usedMessages[message],
            "SignatureChecker: Message already used"
        );
        usedMessages[message] = true;
        requireValidSignature(signers, message, signature);
    }

    /**
    @notice Requires that the message has not been used previously and that the
    recovered signer is contained in the signers AddressSet.
    @dev Convenience wrapper for message generation + signature verification.
     */
    function requireValidSignature(
        EnumerableSet.AddressSet storage signers,
        bytes memory data,
        bytes calldata signature
    ) internal view {
        bytes32 message = generateMessage(data);
        requireValidSignature(signers, message, signature);
    }

    /**
    @notice Requires that the message has not been used previously and that the
    recovered signer is contained in the signers AddressSet.
    @dev Convenience wrapper for message generation from address +
    signature verification.
     */
    function requireValidSignature(
        EnumerableSet.AddressSet storage signers,
        address a,
        bytes calldata signature
    ) internal view {
        bytes32 message = generateMessage(abi.encodePacked(a));
        requireValidSignature(signers, message, signature);
    }

    /**
    @notice Common validator logic, checking if the recovered signer is
    contained in the signers AddressSet.
    */
    function validSignature(
        EnumerableSet.AddressSet storage signers,
        bytes32 message,
        bytes calldata signature
    ) internal view returns (bool) {
        return signers.contains(ECDSA.recover(message, signature));
    }

    /**
    @notice Requires that the recovered signer is contained in the signers
    AddressSet.
    @dev Convenience wrapper that reverts if the signature validation fails.
    */
    function requireValidSignature(
        EnumerableSet.AddressSet storage signers,
        bytes32 message,
        bytes calldata signature
    ) internal view {
        require(
            validSignature(signers, message, signature),
            "SignatureChecker: Invalid signature"
        );
    }

    /**
    @notice Generates a message for a given data input that will be signed
    off-chain using ECDSA.
    @dev For multiple data fields, a standard concatenation using 
    `abi.encodePacked` is commonly used to build data.
     */
    function generateMessage(bytes memory data)
        internal
        pure
        returns (bytes32)
    {
        return ECDSA.toEthSignedMessageHash(data);
    }
}

// SPDX-License-Identifier: MIT
// Copyright (c) 2022 the ethier authors (github.com/divergencetech/ethier)
pragma solidity >=0.8.0 <0.9.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

/**
@title SignerManager
@notice Manges addition and removal of a core set of addresses from which
valid ECDSA signatures can be accepted; see SignatureChecker.
 */
contract SignerManager is Ownable {
    using EnumerableSet for EnumerableSet.AddressSet;

    /**
    @dev Addresses from which signatures can be accepted.
     */
    EnumerableSet.AddressSet internal signers;

    /**
    @notice Add an address to the set of accepted signers.
     */
    function addSigner(address signer) external onlyOwner {
        signers.add(signer);
    }

    /**
    @notice Remove an address previously added with addSigner().
     */
    function removeSigner(address signer) external onlyOwner {
        signers.remove(signer);
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"ids","type":"uint256[]"},{"indexed":false,"internalType":"uint256[]","name":"values","type":"uint256[]"}],"name":"TransferBatch","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"TransferSingle","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"value","type":"string"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"}],"name":"URI","type":"event"},{"inputs":[{"internalType":"address","name":"signer","type":"address"}],"name":"addSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"accounts","type":"address[]"},{"internalType":"uint256[]","name":"ids","type":"uint256[]"}],"name":"balanceOfBatch","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"mintingActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"signer","type":"address"}],"name":"removeSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256[]","name":"ids","type":"uint256[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeBatchTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"supply","type":"uint256"}],"name":"setMaxSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"price","type":"uint256"}],"name":"setTokenPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"string","name":"_uri","type":"string"}],"name":"setTokenURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"sigUsed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"toggleMintingActive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenPrices","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenURIs","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"uri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"usedMessages","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"}]

60806040523480156200001157600080fd5b506040516200265a3803806200265a833981016040819052620000349162000271565b6040805160208101909152600081526200004e8162000093565b506200005a33620000ac565b600160045581516200007490600d906020850190620000fe565b5080516200008a90600e906020840190620000fe565b50505062000318565b8051620000a8906002906020840190620000fe565b5050565b600380546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b8280546200010c90620002db565b90600052602060002090601f0160209004810192826200013057600085556200017b565b82601f106200014b57805160ff19168380011785556200017b565b828001600101855582156200017b579182015b828111156200017b5782518255916020019190600101906200015e565b50620001899291506200018d565b5090565b5b808211156200018957600081556001016200018e565b634e487b7160e01b600052604160045260246000fd5b600082601f830112620001cc57600080fd5b81516001600160401b0380821115620001e957620001e9620001a4565b604051601f8301601f19908116603f01168101908282118183101715620002145762000214620001a4565b816040528381526020925086838588010111156200023157600080fd5b600091505b8382101562000255578582018301518183018401529082019062000236565b83821115620002675760008385830101525b9695505050505050565b600080604083850312156200028557600080fd5b82516001600160401b03808211156200029d57600080fd5b620002ab86838701620001ba565b93506020850151915080821115620002c257600080fd5b50620002d185828601620001ba565b9150509250929050565b600181811c90821680620002f057607f821691505b602082108114156200031257634e487b7160e01b600052602260045260246000fd5b50919050565b61233280620003286000396000f3fe6080604052600436106101b65760003560e01c80638da5cb5b116100ec578063e086e5ec1161008a578063eb12d61e11610064578063eb12d61e14610539578063eb685c4714610559578063f242432a14610579578063f2fde38b1461059457600080fd5b8063e086e5ec146104ae578063e5afe3e6146104c3578063e985e9c5146104f057600080fd5b8063a22cb465116100c6578063a22cb4651461042e578063a230667b1461044e578063bd85b0391461046e578063db7fd4081461049b57600080fd5b80638da5cb5b146103d157806395d89b41146103f95780639dc9921e1461040e57600080fd5b806337da577c116101595780636c8b703f116101335780636c8b703f1461033f578063715018a61461035f578063869f7594146103745780638b606335146103a157600080fd5b806337da577c146102c25780634e1273f4146102e25780635a0284001461030f57600080fd5b80630e316ab7116101955780630e316ab7146102405780630e89341c14610262578063162094c4146102825780632eb2c2d6146102a257600080fd5b8062fdd58e146101bb57806301ffc9a7146101ee57806306fdde031461021e575b600080fd5b3480156101c757600080fd5b506101db6101d6366004611abb565b6105b4565b6040519081526020015b60405180910390f35b3480156101fa57600080fd5b5061020e610209366004611afb565b61064d565b60405190151581526020016101e5565b34801561022a57600080fd5b5061023361069d565b6040516101e59190611b70565b34801561024c57600080fd5b5061026061025b366004611b83565b61072b565b005b34801561026e57600080fd5b5061023361027d366004611b9e565b610742565b34801561028e57600080fd5b5061026061029d366004611c58565b6107e4565b3480156102ae57600080fd5b506102606102bd366004611d68565b610810565b3480156102ce57600080fd5b506102606102dd366004611e12565b61084d565b3480156102ee57600080fd5b506103026102fd366004611e34565b610867565b6040516101e59190611ef5565b34801561031b57600080fd5b5061020e61032a366004611b9e565b600a6020526000908152604090205460ff1681565b34801561034b57600080fd5b5061023361035a366004611b9e565b610991565b34801561036b57600080fd5b506102606109aa565b34801561038057600080fd5b506101db61038f366004611b9e565b600b6020526000908152604090205481565b3480156103ad57600080fd5b5061020e6103bc366004611b9e565b60096020526000908152604090205460ff1681565b3480156103dd57600080fd5b506003546040516001600160a01b0390911681526020016101e5565b34801561040557600080fd5b506102336109be565b34801561041a57600080fd5b5061020e610429366004611f39565b6109cb565b34801561043a57600080fd5b50610260610449366004611f6c565b610a2d565b34801561045a57600080fd5b50610260610469366004611b9e565b610a38565b34801561047a57600080fd5b506101db610489366004611b9e565b600c6020526000908152604090205481565b6102606104a9366004611fa8565b610a60565b3480156104ba57600080fd5b50610260610cb6565b3480156104cf57600080fd5b506101db6104de366004611b9e565b60086020526000908152604090205481565b3480156104fc57600080fd5b5061020e61050b366004612024565b6001600160a01b03918216600090815260016020908152604080832093909416825291909152205460ff1690565b34801561054557600080fd5b50610260610554366004611b83565b610d4a565b34801561056557600080fd5b50610260610574366004611e12565b610d5d565b34801561058557600080fd5b506102606102bd366004612057565b3480156105a057600080fd5b506102606105af366004611b83565b610d77565b60006001600160a01b0383166106245760405162461bcd60e51b815260206004820152602a60248201527f455243313135353a2061646472657373207a65726f206973206e6f742061207660448201526930b634b21037bbb732b960b11b60648201526084015b60405180910390fd5b506000818152602081815260408083206001600160a01b03861684529091529020545b92915050565b60006001600160e01b03198216636cdb3d1360e11b148061067e57506001600160e01b031982166303a24d0760e21b145b8061064757506301ffc9a760e01b6001600160e01b0319831614610647565b600d80546106aa906120bc565b80601f01602080910402602001604051908101604052809291908181526020018280546106d6906120bc565b80156107235780601f106106f857610100808354040283529160200191610723565b820191906000526020600020905b81548152906001019060200180831161070657829003601f168201915b505050505081565b610733610df0565b61073e600582610e4a565b5050565b600081815260076020526040902080546060919061075f906120bc565b80601f016020809104026020016040519081016040528092919081815260200182805461078b906120bc565b80156107d85780601f106107ad576101008083540402835291602001916107d8565b820191906000526020600020905b8154815290600101906020018083116107bb57829003601f168201915b50505050509050919050565b6107ec610df0565b6000828152600760209081526040909120825161080b92840190611a06565b505050565b60405162461bcd60e51b8152602060048201526012602482015271151c985b9cd9995c9cc8191a5cd8589b195960721b604482015260640161061b565b610855610df0565b6000918252600b602052604090912055565b606081518351146108cc5760405162461bcd60e51b815260206004820152602960248201527f455243313135353a206163636f756e747320616e6420696473206c656e677468604482015268040dad2e6dac2e8c6d60bb1b606482015260840161061b565b6000835167ffffffffffffffff8111156108e8576108e8611bb7565b604051908082528060200260200182016040528015610911578160200160208202803683370190505b50905060005b84518110156109895761095c858281518110610935576109356120f7565b602002602001015185838151811061094f5761094f6120f7565b60200260200101516105b4565b82828151811061096e5761096e6120f7565b602090810291909101015261098281612123565b9050610917565b509392505050565b600760205260009081526040902080546106aa906120bc565b6109b2610df0565b6109bc6000610e66565b565b600e80546106aa906120bc565b604080513060208201526001600160a01b038516818301526060810183905260808082018590528251808303909101815260a090910190915260009081610a1182610eb8565b6000908152600a602052604090205460ff169695505050505050565b61073e338383610ec3565b610a40610df0565b6000908152600960205260409020805460ff19811660ff90911615179055565b610a68610fa4565b60008381526007602052604081208054610a81906120bc565b905011610abe5760405162461bcd60e51b815260206004820152600b60248201526a155492481b9bdd081cd95d60aa1b604482015260640161061b565b60008381526009602052604090205460ff16610b115760405162461bcd60e51b81526020600482015260126024820152714d696e74696e67206e6f742061637469766560701b604482015260640161061b565b610b1b33846105b4565b15610b595760405162461bcd60e51b815260206004820152600e60248201526d105b1c9958591e481b5a5b9d195960921b604482015260640161061b565b6000838152600b602052604090205415610bca576000838152600b6020908152604080832054600c9092529091205410610bca5760405162461bcd60e51b815260206004820152601260248201527113585e081cdd5c1c1b1e481c995858da195960721b604482015260640161061b565b8015610c1b576040805130602082015233918101919091526060810184905234608082015260009060a0016040516020818303038152906040529050610c156005828585600a610ffe565b50610c6a565b6000838152600860205260409020543414610c6a5760405162461bcd60e51b815260206004820152600f60248201526e496e636f72726563742076616c756560881b604482015260640161061b565b6000838152600c60205260408120805460019290610c8990849061213e565b92505081905550610cac33846001604051806020016040528060008152506110a7565b61080b6001600455565b610cbe610df0565b6040514790600090339083908381818185875af1925050503d8060008114610d02576040519150601f19603f3d011682016040523d82523d6000602084013e610d07565b606091505b505090508061073e5760405162461bcd60e51b815260206004820152600f60248201526e15da5d1a191c985dc819985a5b1959608a1b604482015260640161061b565b610d52610df0565b61073e6005826111bb565b610d65610df0565b60009182526008602052604090912055565b610d7f610df0565b6001600160a01b038116610de45760405162461bcd60e51b815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201526564647265737360d01b606482015260840161061b565b610ded81610e66565b50565b6003546001600160a01b031633146109bc5760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e6572604482015260640161061b565b6000610e5f836001600160a01b0384166111d0565b9392505050565b600380546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b6000610647826112c3565b816001600160a01b0316836001600160a01b03161415610f375760405162461bcd60e51b815260206004820152602960248201527f455243313135353a2073657474696e6720617070726f76616c20737461747573604482015268103337b91039b2b63360b91b606482015260840161061b565b6001600160a01b03838116600081815260016020908152604080832094871680845294825291829020805460ff191686151590811790915591519182527f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31910160405180910390a3505050565b60026004541415610ff75760405162461bcd60e51b815260206004820152601f60248201527f5265656e7472616e637947756172643a207265656e7472616e742063616c6c00604482015260640161061b565b6002600455565b600061100985610eb8565b60008181526020849052604090205490915060ff161561107a5760405162461bcd60e51b815260206004820152602660248201527f5369676e6174757265436865636b65723a204d65737361676520616c726561646044820152651e481d5cd95960d21b606482015260840161061b565b6000818152602083905260409020805460ff1916600117905561109f868286866112fe565b505050505050565b6001600160a01b0384166111075760405162461bcd60e51b815260206004820152602160248201527f455243313135353a206d696e7420746f20746865207a65726f206164647265736044820152607360f81b606482015260840161061b565b33600061111385611368565b9050600061112085611368565b90506000868152602081815260408083206001600160a01b038b1684529091528120805487929061115290849061213e565b909155505060408051878152602081018790526001600160a01b03808a1692600092918716917fc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62910160405180910390a46111b2836000898989896113b3565b50505050505050565b6000610e5f836001600160a01b03841661155f565b600081815260018301602052604081205480156112b95760006111f4600183612156565b855490915060009061120890600190612156565b905081811461126d576000866000018281548110611228576112286120f7565b906000526020600020015490508087600001848154811061124b5761124b6120f7565b6000918252602080832090910192909255918252600188019052604090208390555b855486908061127e5761127e61216d565b600190038181906000526020600020016000905590558560010160008681526020019081526020016000206000905560019350505050610647565b6000915050610647565b60006112cf82516115ae565b826040516020016112e1929190612183565b604051602081830303815290604052805190602001209050919050565b61130a84848484611643565b6113625760405162461bcd60e51b815260206004820152602360248201527f5369676e6174757265436865636b65723a20496e76616c6964207369676e617460448201526275726560e81b606482015260840161061b565b50505050565b604080516001808252818301909252606091600091906020808301908036833701905050905082816000815181106113a2576113a26120f7565b602090810291909101015292915050565b6001600160a01b0384163b1561109f5760405163f23a6e6160e01b81526001600160a01b0385169063f23a6e61906113f790899089908890889088906004016121de565b602060405180830381600087803b15801561141157600080fd5b505af1925050508015611441575060408051601f3d908101601f1916820190925261143e91810190612223565b60015b6114ee5761144d612240565b806308c379a01415611487575061146261225c565b8061146d5750611489565b8060405162461bcd60e51b815260040161061b9190611b70565b505b60405162461bcd60e51b815260206004820152603460248201527f455243313135353a207472616e7366657220746f206e6f6e2d455243313135356044820152732932b1b2b4bb32b91034b6b83632b6b2b73a32b960611b606482015260840161061b565b6001600160e01b0319811663f23a6e6160e01b146111b25760405162461bcd60e51b815260206004820152602860248201527f455243313135353a204552433131353552656365697665722072656a656374656044820152676420746f6b656e7360c01b606482015260840161061b565b60008181526001830160205260408120546115a657508154600181810184556000848152602080822090930184905584548482528286019093526040902091909155610647565b506000610647565b606060006115bb83611698565b600101905060008167ffffffffffffffff8111156115db576115db611bb7565b6040519080825280601f01601f191660200182016040528015611605576020820181803683370190505b5090508181016020015b600019016f181899199a1a9b1b9c1cb0b131b232b360811b600a86061a8153600a850494508461163e57610989565b61160f565b600061168f6116888585858080601f01602080910402602001604051908101604052809392919081815260200183838082843760009201919091525061177092505050565b869061178c565b95945050505050565b60008072184f03e93ff9f4daa797ed6e38ed64bf6a1f0160401b83106116d75772184f03e93ff9f4daa797ed6e38ed64bf6a1f0160401b830492506040015b6d04ee2d6d415b85acef81000000008310611703576d04ee2d6d415b85acef8100000000830492506020015b662386f26fc10000831061172157662386f26fc10000830492506010015b6305f5e1008310611739576305f5e100830492506008015b612710831061174d57612710830492506004015b6064831061175f576064830492506002015b600a83106106475760010192915050565b600080600061177f85856117ae565b91509150610989816117f4565b6001600160a01b03811660009081526001830160205260408120541515610e5f565b6000808251604114156117e55760208301516040840151606085015160001a6117d987828585611942565b945094505050506117ed565b506000905060025b9250929050565b6000816004811115611808576118086122e6565b14156118115750565b6001816004811115611825576118256122e6565b14156118735760405162461bcd60e51b815260206004820152601860248201527f45434453413a20696e76616c6964207369676e61747572650000000000000000604482015260640161061b565b6002816004811115611887576118876122e6565b14156118d55760405162461bcd60e51b815260206004820152601f60248201527f45434453413a20696e76616c6964207369676e6174757265206c656e67746800604482015260640161061b565b60038160048111156118e9576118e96122e6565b1415610ded5760405162461bcd60e51b815260206004820152602260248201527f45434453413a20696e76616c6964207369676e6174757265202773272076616c604482015261756560f01b606482015260840161061b565b6000807f7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a083111561197957506000905060036119fd565b6040805160008082526020820180845289905260ff881692820192909252606081018690526080810185905260019060a0016020604051602081039080840390855afa1580156119cd573d6000803e3d6000fd5b5050604051601f1901519150506001600160a01b0381166119f6576000600192509250506119fd565b9150600090505b94509492505050565b828054611a12906120bc565b90600052602060002090601f016020900481019282611a345760008555611a7a565b82601f10611a4d57805160ff1916838001178555611a7a565b82800160010185558215611a7a579182015b82811115611a7a578251825591602001919060010190611a5f565b50611a86929150611a8a565b5090565b5b80821115611a865760008155600101611a8b565b80356001600160a01b0381168114611ab657600080fd5b919050565b60008060408385031215611ace57600080fd5b611ad783611a9f565b946020939093013593505050565b6001600160e01b031981168114610ded57600080fd5b600060208284031215611b0d57600080fd5b8135610e5f81611ae5565b60005b83811015611b33578181015183820152602001611b1b565b838111156113625750506000910152565b60008151808452611b5c816020860160208601611b18565b601f01601f19169290920160200192915050565b602081526000610e5f6020830184611b44565b600060208284031215611b9557600080fd5b610e5f82611a9f565b600060208284031215611bb057600080fd5b5035919050565b634e487b7160e01b600052604160045260246000fd5b601f8201601f1916810167ffffffffffffffff81118282101715611bf357611bf3611bb7565b6040525050565b600067ffffffffffffffff831115611c1457611c14611bb7565b604051611c2b601f8501601f191660200182611bcd565b809150838152848484011115611c4057600080fd5b83836020830137600060208583010152509392505050565b60008060408385031215611c6b57600080fd5b82359150602083013567ffffffffffffffff811115611c8957600080fd5b8301601f81018513611c9a57600080fd5b611ca985823560208401611bfa565b9150509250929050565b600067ffffffffffffffff821115611ccd57611ccd611bb7565b5060051b60200190565b600082601f830112611ce857600080fd5b81356020611cf582611cb3565b604051611d028282611bcd565b83815260059390931b8501820192828101915086841115611d2257600080fd5b8286015b84811015611d3d5780358352918301918301611d26565b509695505050505050565b600082601f830112611d5957600080fd5b610e5f83833560208501611bfa565b600080600080600060a08688031215611d8057600080fd5b611d8986611a9f565b9450611d9760208701611a9f565b9350604086013567ffffffffffffffff80821115611db457600080fd5b611dc089838a01611cd7565b94506060880135915080821115611dd657600080fd5b611de289838a01611cd7565b93506080880135915080821115611df857600080fd5b50611e0588828901611d48565b9150509295509295909350565b60008060408385031215611e2557600080fd5b50508035926020909101359150565b60008060408385031215611e4757600080fd5b823567ffffffffffffffff80821115611e5f57600080fd5b818501915085601f830112611e7357600080fd5b81356020611e8082611cb3565b604051611e8d8282611bcd565b83815260059390931b8501820192828101915089841115611ead57600080fd5b948201945b83861015611ed257611ec386611a9f565b82529482019490820190611eb2565b96505086013592505080821115611ee857600080fd5b50611ca985828601611cd7565b6020808252825182820181905260009190848201906040850190845b81811015611f2d57835183529284019291840191600101611f11565b50909695505050505050565b600080600060608486031215611f4e57600080fd5b611f5784611a9f565b95602085013595506040909401359392505050565b60008060408385031215611f7f57600080fd5b611f8883611a9f565b915060208301358015158114611f9d57600080fd5b809150509250929050565b600080600060408486031215611fbd57600080fd5b83359250602084013567ffffffffffffffff80821115611fdc57600080fd5b818601915086601f830112611ff057600080fd5b813581811115611fff57600080fd5b87602082850101111561201157600080fd5b6020830194508093505050509250925092565b6000806040838503121561203757600080fd5b61204083611a9f565b915061204e60208401611a9f565b90509250929050565b600080600080600060a0868803121561206f57600080fd5b61207886611a9f565b945061208660208701611a9f565b93506040860135925060608601359150608086013567ffffffffffffffff8111156120b057600080fd5b611e0588828901611d48565b600181811c908216806120d057607f821691505b602082108114156120f157634e487b7160e01b600052602260045260246000fd5b50919050565b634e487b7160e01b600052603260045260246000fd5b634e487b7160e01b600052601160045260246000fd5b60006000198214156121375761213761210d565b5060010190565b600082198211156121515761215161210d565b500190565b6000828210156121685761216861210d565b500390565b634e487b7160e01b600052603160045260246000fd5b7f19457468657265756d205369676e6564204d6573736167653a0a0000000000008152600083516121bb81601a850160208801611b18565b8351908301906121d281601a840160208801611b18565b01601a01949350505050565b6001600160a01b03868116825285166020820152604081018490526060810183905260a06080820181905260009061221890830184611b44565b979650505050505050565b60006020828403121561223557600080fd5b8151610e5f81611ae5565b600060033d11156122595760046000803e5060005160e01c5b90565b600060443d101561226a5790565b6040516003193d81016004833e81513d67ffffffffffffffff816024840111818411171561229a57505050505090565b82850191508151818111156122b25750505050505090565b843d87010160208285010111156122cc5750505050505090565b6122db60208286010187611bcd565b509095945050505050565b634e487b7160e01b600052602160045260246000fdfea26469706673582212201c9913ea0553b9d99c9489ff1dd153397911a4387d261416881f222a54d616a964736f6c63430008090033000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000006416363657373000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000064143434553530000000000000000000000000000000000000000000000000000

0x6080604052600436106101b65760003560e01c80638da5cb5b116100ec578063e086e5ec1161008a578063eb12d61e11610064578063eb12d61e14610539578063eb685c4714610559578063f242432a14610579578063f2fde38b1461059457600080fd5b8063e086e5ec146104ae578063e5afe3e6146104c3578063e985e9c5146104f057600080fd5b8063a22cb465116100c6578063a22cb4651461042e578063a230667b1461044e578063bd85b0391461046e578063db7fd4081461049b57600080fd5b80638da5cb5b146103d157806395d89b41146103f95780639dc9921e1461040e57600080fd5b806337da577c116101595780636c8b703f116101335780636c8b703f1461033f578063715018a61461035f578063869f7594146103745780638b606335146103a157600080fd5b806337da577c146102c25780634e1273f4146102e25780635a0284001461030f57600080fd5b80630e316ab7116101955780630e316ab7146102405780630e89341c14610262578063162094c4146102825780632eb2c2d6146102a257600080fd5b8062fdd58e146101bb57806301ffc9a7146101ee57806306fdde031461021e575b600080fd5b3480156101c757600080fd5b506101db6101d6366004611abb565b6105b4565b6040519081526020015b60405180910390f35b3480156101fa57600080fd5b5061020e610209366004611afb565b61064d565b60405190151581526020016101e5565b34801561022a57600080fd5b5061023361069d565b6040516101e59190611b70565b34801561024c57600080fd5b5061026061025b366004611b83565b61072b565b005b34801561026e57600080fd5b5061023361027d366004611b9e565b610742565b34801561028e57600080fd5b5061026061029d366004611c58565b6107e4565b3480156102ae57600080fd5b506102606102bd366004611d68565b610810565b3480156102ce57600080fd5b506102606102dd366004611e12565b61084d565b3480156102ee57600080fd5b506103026102fd366004611e34565b610867565b6040516101e59190611ef5565b34801561031b57600080fd5b5061020e61032a366004611b9e565b600a6020526000908152604090205460ff1681565b34801561034b57600080fd5b5061023361035a366004611b9e565b610991565b34801561036b57600080fd5b506102606109aa565b34801561038057600080fd5b506101db61038f366004611b9e565b600b6020526000908152604090205481565b3480156103ad57600080fd5b5061020e6103bc366004611b9e565b60096020526000908152604090205460ff1681565b3480156103dd57600080fd5b506003546040516001600160a01b0390911681526020016101e5565b34801561040557600080fd5b506102336109be565b34801561041a57600080fd5b5061020e610429366004611f39565b6109cb565b34801561043a57600080fd5b50610260610449366004611f6c565b610a2d565b34801561045a57600080fd5b50610260610469366004611b9e565b610a38565b34801561047a57600080fd5b506101db610489366004611b9e565b600c6020526000908152604090205481565b6102606104a9366004611fa8565b610a60565b3480156104ba57600080fd5b50610260610cb6565b3480156104cf57600080fd5b506101db6104de366004611b9e565b60086020526000908152604090205481565b3480156104fc57600080fd5b5061020e61050b366004612024565b6001600160a01b03918216600090815260016020908152604080832093909416825291909152205460ff1690565b34801561054557600080fd5b50610260610554366004611b83565b610d4a565b34801561056557600080fd5b50610260610574366004611e12565b610d5d565b34801561058557600080fd5b506102606102bd366004612057565b3480156105a057600080fd5b506102606105af366004611b83565b610d77565b60006001600160a01b0383166106245760405162461bcd60e51b815260206004820152602a60248201527f455243313135353a2061646472657373207a65726f206973206e6f742061207660448201526930b634b21037bbb732b960b11b60648201526084015b60405180910390fd5b506000818152602081815260408083206001600160a01b03861684529091529020545b92915050565b60006001600160e01b03198216636cdb3d1360e11b148061067e57506001600160e01b031982166303a24d0760e21b145b8061064757506301ffc9a760e01b6001600160e01b0319831614610647565b600d80546106aa906120bc565b80601f01602080910402602001604051908101604052809291908181526020018280546106d6906120bc565b80156107235780601f106106f857610100808354040283529160200191610723565b820191906000526020600020905b81548152906001019060200180831161070657829003601f168201915b505050505081565b610733610df0565b61073e600582610e4a565b5050565b600081815260076020526040902080546060919061075f906120bc565b80601f016020809104026020016040519081016040528092919081815260200182805461078b906120bc565b80156107d85780601f106107ad576101008083540402835291602001916107d8565b820191906000526020600020905b8154815290600101906020018083116107bb57829003601f168201915b50505050509050919050565b6107ec610df0565b6000828152600760209081526040909120825161080b92840190611a06565b505050565b60405162461bcd60e51b8152602060048201526012602482015271151c985b9cd9995c9cc8191a5cd8589b195960721b604482015260640161061b565b610855610df0565b6000918252600b602052604090912055565b606081518351146108cc5760405162461bcd60e51b815260206004820152602960248201527f455243313135353a206163636f756e747320616e6420696473206c656e677468604482015268040dad2e6dac2e8c6d60bb1b606482015260840161061b565b6000835167ffffffffffffffff8111156108e8576108e8611bb7565b604051908082528060200260200182016040528015610911578160200160208202803683370190505b50905060005b84518110156109895761095c858281518110610935576109356120f7565b602002602001015185838151811061094f5761094f6120f7565b60200260200101516105b4565b82828151811061096e5761096e6120f7565b602090810291909101015261098281612123565b9050610917565b509392505050565b600760205260009081526040902080546106aa906120bc565b6109b2610df0565b6109bc6000610e66565b565b600e80546106aa906120bc565b604080513060208201526001600160a01b038516818301526060810183905260808082018590528251808303909101815260a090910190915260009081610a1182610eb8565b6000908152600a602052604090205460ff169695505050505050565b61073e338383610ec3565b610a40610df0565b6000908152600960205260409020805460ff19811660ff90911615179055565b610a68610fa4565b60008381526007602052604081208054610a81906120bc565b905011610abe5760405162461bcd60e51b815260206004820152600b60248201526a155492481b9bdd081cd95d60aa1b604482015260640161061b565b60008381526009602052604090205460ff16610b115760405162461bcd60e51b81526020600482015260126024820152714d696e74696e67206e6f742061637469766560701b604482015260640161061b565b610b1b33846105b4565b15610b595760405162461bcd60e51b815260206004820152600e60248201526d105b1c9958591e481b5a5b9d195960921b604482015260640161061b565b6000838152600b602052604090205415610bca576000838152600b6020908152604080832054600c9092529091205410610bca5760405162461bcd60e51b815260206004820152601260248201527113585e081cdd5c1c1b1e481c995858da195960721b604482015260640161061b565b8015610c1b576040805130602082015233918101919091526060810184905234608082015260009060a0016040516020818303038152906040529050610c156005828585600a610ffe565b50610c6a565b6000838152600860205260409020543414610c6a5760405162461bcd60e51b815260206004820152600f60248201526e496e636f72726563742076616c756560881b604482015260640161061b565b6000838152600c60205260408120805460019290610c8990849061213e565b92505081905550610cac33846001604051806020016040528060008152506110a7565b61080b6001600455565b610cbe610df0565b6040514790600090339083908381818185875af1925050503d8060008114610d02576040519150601f19603f3d011682016040523d82523d6000602084013e610d07565b606091505b505090508061073e5760405162461bcd60e51b815260206004820152600f60248201526e15da5d1a191c985dc819985a5b1959608a1b604482015260640161061b565b610d52610df0565b61073e6005826111bb565b610d65610df0565b60009182526008602052604090912055565b610d7f610df0565b6001600160a01b038116610de45760405162461bcd60e51b815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201526564647265737360d01b606482015260840161061b565b610ded81610e66565b50565b6003546001600160a01b031633146109bc5760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e6572604482015260640161061b565b6000610e5f836001600160a01b0384166111d0565b9392505050565b600380546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b6000610647826112c3565b816001600160a01b0316836001600160a01b03161415610f375760405162461bcd60e51b815260206004820152602960248201527f455243313135353a2073657474696e6720617070726f76616c20737461747573604482015268103337b91039b2b63360b91b606482015260840161061b565b6001600160a01b03838116600081815260016020908152604080832094871680845294825291829020805460ff191686151590811790915591519182527f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31910160405180910390a3505050565b60026004541415610ff75760405162461bcd60e51b815260206004820152601f60248201527f5265656e7472616e637947756172643a207265656e7472616e742063616c6c00604482015260640161061b565b6002600455565b600061100985610eb8565b60008181526020849052604090205490915060ff161561107a5760405162461bcd60e51b815260206004820152602660248201527f5369676e6174757265436865636b65723a204d65737361676520616c726561646044820152651e481d5cd95960d21b606482015260840161061b565b6000818152602083905260409020805460ff1916600117905561109f868286866112fe565b505050505050565b6001600160a01b0384166111075760405162461bcd60e51b815260206004820152602160248201527f455243313135353a206d696e7420746f20746865207a65726f206164647265736044820152607360f81b606482015260840161061b565b33600061111385611368565b9050600061112085611368565b90506000868152602081815260408083206001600160a01b038b1684529091528120805487929061115290849061213e565b909155505060408051878152602081018790526001600160a01b03808a1692600092918716917fc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62910160405180910390a46111b2836000898989896113b3565b50505050505050565b6000610e5f836001600160a01b03841661155f565b600081815260018301602052604081205480156112b95760006111f4600183612156565b855490915060009061120890600190612156565b905081811461126d576000866000018281548110611228576112286120f7565b906000526020600020015490508087600001848154811061124b5761124b6120f7565b6000918252602080832090910192909255918252600188019052604090208390555b855486908061127e5761127e61216d565b600190038181906000526020600020016000905590558560010160008681526020019081526020016000206000905560019350505050610647565b6000915050610647565b60006112cf82516115ae565b826040516020016112e1929190612183565b604051602081830303815290604052805190602001209050919050565b61130a84848484611643565b6113625760405162461bcd60e51b815260206004820152602360248201527f5369676e6174757265436865636b65723a20496e76616c6964207369676e617460448201526275726560e81b606482015260840161061b565b50505050565b604080516001808252818301909252606091600091906020808301908036833701905050905082816000815181106113a2576113a26120f7565b602090810291909101015292915050565b6001600160a01b0384163b1561109f5760405163f23a6e6160e01b81526001600160a01b0385169063f23a6e61906113f790899089908890889088906004016121de565b602060405180830381600087803b15801561141157600080fd5b505af1925050508015611441575060408051601f3d908101601f1916820190925261143e91810190612223565b60015b6114ee5761144d612240565b806308c379a01415611487575061146261225c565b8061146d5750611489565b8060405162461bcd60e51b815260040161061b9190611b70565b505b60405162461bcd60e51b815260206004820152603460248201527f455243313135353a207472616e7366657220746f206e6f6e2d455243313135356044820152732932b1b2b4bb32b91034b6b83632b6b2b73a32b960611b606482015260840161061b565b6001600160e01b0319811663f23a6e6160e01b146111b25760405162461bcd60e51b815260206004820152602860248201527f455243313135353a204552433131353552656365697665722072656a656374656044820152676420746f6b656e7360c01b606482015260840161061b565b60008181526001830160205260408120546115a657508154600181810184556000848152602080822090930184905584548482528286019093526040902091909155610647565b506000610647565b606060006115bb83611698565b600101905060008167ffffffffffffffff8111156115db576115db611bb7565b6040519080825280601f01601f191660200182016040528015611605576020820181803683370190505b5090508181016020015b600019016f181899199a1a9b1b9c1cb0b131b232b360811b600a86061a8153600a850494508461163e57610989565b61160f565b600061168f6116888585858080601f01602080910402602001604051908101604052809392919081815260200183838082843760009201919091525061177092505050565b869061178c565b95945050505050565b60008072184f03e93ff9f4daa797ed6e38ed64bf6a1f0160401b83106116d75772184f03e93ff9f4daa797ed6e38ed64bf6a1f0160401b830492506040015b6d04ee2d6d415b85acef81000000008310611703576d04ee2d6d415b85acef8100000000830492506020015b662386f26fc10000831061172157662386f26fc10000830492506010015b6305f5e1008310611739576305f5e100830492506008015b612710831061174d57612710830492506004015b6064831061175f576064830492506002015b600a83106106475760010192915050565b600080600061177f85856117ae565b91509150610989816117f4565b6001600160a01b03811660009081526001830160205260408120541515610e5f565b6000808251604114156117e55760208301516040840151606085015160001a6117d987828585611942565b945094505050506117ed565b506000905060025b9250929050565b6000816004811115611808576118086122e6565b14156118115750565b6001816004811115611825576118256122e6565b14156118735760405162461bcd60e51b815260206004820152601860248201527f45434453413a20696e76616c6964207369676e61747572650000000000000000604482015260640161061b565b6002816004811115611887576118876122e6565b14156118d55760405162461bcd60e51b815260206004820152601f60248201527f45434453413a20696e76616c6964207369676e6174757265206c656e67746800604482015260640161061b565b60038160048111156118e9576118e96122e6565b1415610ded5760405162461bcd60e51b815260206004820152602260248201527f45434453413a20696e76616c6964207369676e6174757265202773272076616c604482015261756560f01b606482015260840161061b565b6000807f7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a083111561197957506000905060036119fd565b6040805160008082526020820180845289905260ff881692820192909252606081018690526080810185905260019060a0016020604051602081039080840390855afa1580156119cd573d6000803e3d6000fd5b5050604051601f1901519150506001600160a01b0381166119f6576000600192509250506119fd565b9150600090505b94509492505050565b828054611a12906120bc565b90600052602060002090601f016020900481019282611a345760008555611a7a565b82601f10611a4d57805160ff1916838001178555611a7a565b82800160010185558215611a7a579182015b82811115611a7a578251825591602001919060010190611a5f565b50611a86929150611a8a565b5090565b5b80821115611a865760008155600101611a8b565b80356001600160a01b0381168114611ab657600080fd5b919050565b60008060408385031215611ace57600080fd5b611ad783611a9f565b946020939093013593505050565b6001600160e01b031981168114610ded57600080fd5b600060208284031215611b0d57600080fd5b8135610e5f81611ae5565b60005b83811015611b33578181015183820152602001611b1b565b838111156113625750506000910152565b60008151808452611b5c816020860160208601611b18565b601f01601f19169290920160200192915050565b602081526000610e5f6020830184611b44565b600060208284031215611b9557600080fd5b610e5f82611a9f565b600060208284031215611bb057600080fd5b5035919050565b634e487b7160e01b600052604160045260246000fd5b601f8201601f1916810167ffffffffffffffff81118282101715611bf357611bf3611bb7565b6040525050565b600067ffffffffffffffff831115611c1457611c14611bb7565b604051611c2b601f8501601f191660200182611bcd565b809150838152848484011115611c4057600080fd5b83836020830137600060208583010152509392505050565b60008060408385031215611c6b57600080fd5b82359150602083013567ffffffffffffffff811115611c8957600080fd5b8301601f81018513611c9a57600080fd5b611ca985823560208401611bfa565b9150509250929050565b600067ffffffffffffffff821115611ccd57611ccd611bb7565b5060051b60200190565b600082601f830112611ce857600080fd5b81356020611cf582611cb3565b604051611d028282611bcd565b83815260059390931b8501820192828101915086841115611d2257600080fd5b8286015b84811015611d3d5780358352918301918301611d26565b509695505050505050565b600082601f830112611d5957600080fd5b610e5f83833560208501611bfa565b600080600080600060a08688031215611d8057600080fd5b611d8986611a9f565b9450611d9760208701611a9f565b9350604086013567ffffffffffffffff80821115611db457600080fd5b611dc089838a01611cd7565b94506060880135915080821115611dd657600080fd5b611de289838a01611cd7565b93506080880135915080821115611df857600080fd5b50611e0588828901611d48565b9150509295509295909350565b60008060408385031215611e2557600080fd5b50508035926020909101359150565b60008060408385031215611e4757600080fd5b823567ffffffffffffffff80821115611e5f57600080fd5b818501915085601f830112611e7357600080fd5b81356020611e8082611cb3565b604051611e8d8282611bcd565b83815260059390931b8501820192828101915089841115611ead57600080fd5b948201945b83861015611ed257611ec386611a9f565b82529482019490820190611eb2565b96505086013592505080821115611ee857600080fd5b50611ca985828601611cd7565b6020808252825182820181905260009190848201906040850190845b81811015611f2d57835183529284019291840191600101611f11565b50909695505050505050565b600080600060608486031215611f4e57600080fd5b611f5784611a9f565b95602085013595506040909401359392505050565b60008060408385031215611f7f57600080fd5b611f8883611a9f565b915060208301358015158114611f9d57600080fd5b809150509250929050565b600080600060408486031215611fbd57600080fd5b83359250602084013567ffffffffffffffff80821115611fdc57600080fd5b818601915086601f830112611ff057600080fd5b813581811115611fff57600080fd5b87602082850101111561201157600080fd5b6020830194508093505050509250925092565b6000806040838503121561203757600080fd5b61204083611a9f565b915061204e60208401611a9f565b90509250929050565b600080600080600060a0868803121561206f57600080fd5b61207886611a9f565b945061208660208701611a9f565b93506040860135925060608601359150608086013567ffffffffffffffff8111156120b057600080fd5b611e0588828901611d48565b600181811c908216806120d057607f821691505b602082108114156120f157634e487b7160e01b600052602260045260246000fd5b50919050565b634e487b7160e01b600052603260045260246000fd5b634e487b7160e01b600052601160045260246000fd5b60006000198214156121375761213761210d565b5060010190565b600082198211156121515761215161210d565b500190565b6000828210156121685761216861210d565b500390565b634e487b7160e01b600052603160045260246000fd5b7f19457468657265756d205369676e6564204d6573736167653a0a0000000000008152600083516121bb81601a850160208801611b18565b8351908301906121d281601a840160208801611b18565b01601a01949350505050565b6001600160a01b03868116825285166020820152604081018490526060810183905260a06080820181905260009061221890830184611b44565b979650505050505050565b60006020828403121561223557600080fd5b8151610e5f81611ae5565b600060033d11156122595760046000803e5060005160e01c5b90565b600060443d101561226a5790565b6040516003193d81016004833e81513d67ffffffffffffffff816024840111818411171561229a57505050505090565b82850191508151818111156122b25750505050505090565b843d87010160208285010111156122cc5750505050505090565b6122db60208286010187611bcd565b509095945050505050565b634e487b7160e01b600052602160045260246000fdfea26469706673582212201c9913ea0553b9d99c9489ff1dd153397911a4387d261416881f222a54d616a964736f6c63430008090033

000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000006416363657373000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000064143434553530000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _name (string): Access
Arg [1] : _symbol (string): ACCESS

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [3] : 4163636573730000000000000000000000000000000000000000000000000000
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [5] : 4143434553530000000000000000000000000000000000000000000000000000