Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

pragma solidity 0.5.17;

import "openzeppelin-solidity/contracts/token/ERC721/ERC721Metadata.sol";
import "./VendingMachineAuthority.sol";

/// @title  Fee Rebate Token
/// @notice The Fee Rebate Token (FRT) is a non fungible token (ERC721)
///         the ID of which corresponds to a given deposit address.
///         If the corresponding deposit is still active, ownership of this token
///         could result in reimbursement of the signer fee paid to open the deposit.
/// @dev    This token is minted automatically when a TDT (`TBTCDepositToken`)
///         is exchanged for TBTC (`TBTCToken`) via the Vending Machine (`VendingMachine`).
///         When the Deposit is redeemed, the TDT holder will be reimbursed
///         the signer fee if the redeemer is not the TDT holder and Deposit is not
///         at-term or in COURTESY_CALL.
contract FeeRebateToken is ERC721Metadata, VendingMachineAuthority {

    constructor(address _vendingMachine)
        ERC721Metadata("tBTC Fee Rebate Token", "FRT")
        VendingMachineAuthority(_vendingMachine)
    public {
        // solium-disable-previous-line no-empty-blocks
    }

    /// @dev Mints a new token.
    /// Reverts if the given token ID already exists.
    /// @param _to The address that will own the minted token.
    /// @param _tokenId uint256 ID of the token to be minted.
    function mint(address _to, uint256 _tokenId) external onlyVendingMachine {
        _mint(_to, _tokenId);
    }

    /// @dev Returns whether the specified token exists.
    /// @param _tokenId uint256 ID of the token to query the existence of.
    /// @return bool whether the token exists.
    function exists(uint256 _tokenId) external view returns (bool) {
        return _exists(_tokenId);
    }
}

pragma solidity 0.5.17;

/// @title Interface of recipient contract for `approveAndCall` pattern.
///        Implementors will be able to be used in an `approveAndCall`
///        interaction with a supporting contract, such that a token approval
///        can call the contract acting on that approval in a single
///        transaction.
///
///        See the `FundingScript` and `RedemptionScript` contracts as examples.
interface ITokenRecipient {
    /// Typically called from a token contract's `approveAndCall` method, this
    /// method will receive the original owner of the token (`_from`), the
    /// transferred `_value` (in the case of an ERC721, the token id), the token
    /// address (`_token`), and a blob of `_extraData` that is informally
    /// specified by the implementor of this method as a way to communicate
    /// additional parameters.
    ///
    /// Token calls to `receiveApproval` should revert if `receiveApproval`
    /// reverts, and reverts should remove the approval.
    ///
    /// @param _from The original owner of the token approved for transfer.
    /// @param _value For an ERC20, the amount approved for transfer; for an
    ///        ERC721, the id of the token approved for transfer.
    /// @param _token The address of the contract for the token whose transfer
    ///        was approved.
    /// @param _extraData An additional data blob forwarded unmodified through
    ///        `approveAndCall`, used to allow the token owner to pass
    ///         additional parameters and data to this method. The structure of
    ///         the extra data is informally specified by the implementor of
    ///         this interface.
    function receiveApproval(
        address _from,
        uint256 _value,
        address _token,
        bytes calldata _extraData
    ) external;
}

pragma solidity 0.5.17;

/// @title  Deposit Factory Authority
/// @notice Contract to secure function calls to the Deposit Factory.
/// @dev    Secured by setting the depositFactory address and using the onlyFactory
///         modifier on functions requiring restriction.
contract DepositFactoryAuthority {

    bool internal _initialized = false;
    address internal _depositFactory;

    /// @notice Set the address of the System contract on contract
    ///         initialization.
    /// @dev Since this function is not access-controlled, it should be called
    ///      transactionally with contract instantiation. In cases where a
    ///      regular contract directly inherits from DepositFactoryAuthority,
    ///      that should happen in the constructor. In cases where the inheritor
    ///      is binstead used via a clone factory, the same function that
    ///      creates a new clone should also trigger initialization.
    function initialize(address _factory) public {
        require(_factory != address(0), "Factory cannot be the zero address.");
        require(! _initialized, "Factory can only be initialized once.");

        _depositFactory = _factory;
        _initialized = true;
    }

    /// @notice Function modifier ensures modified function is only called by set deposit factory.
    modifier onlyFactory(){
        require(_initialized, "Factory initialization must have been called.");
        require(msg.sender == _depositFactory, "Caller must be depositFactory contract");
        _;
    }
}

pragma solidity 0.5.17;

/// @title  Vending Machine Authority.
/// @notice Contract to secure function calls to the Vending Machine.
/// @dev    Secured by setting the VendingMachine address and using the
///         onlyVendingMachine modifier on functions requiring restriction.
contract VendingMachineAuthority {
    address internal VendingMachine;

    constructor(address _vendingMachine) public {
        VendingMachine = _vendingMachine;
    }

    /// @notice Function modifier ensures modified function caller address is the vending machine.
    modifier onlyVendingMachine() {
        require(msg.sender == VendingMachine, "caller must be the vending machine");
        _;
    }
}

pragma solidity ^0.5.0;

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

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
contract IERC721 is IERC165 {
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of NFTs in `owner`'s account.
     */
    function balanceOf(address owner) public view returns (uint256 balance);

    /**
     * @dev Returns the owner of the NFT specified by `tokenId`.
     */
    function ownerOf(uint256 tokenId) public view returns (address owner);

    /**
     * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to
     * another (`to`).
     *
     * 
     *
     * Requirements:
     * - `from`, `to` cannot be zero.
     * - `tokenId` must be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this
     * NFT by either `approve` or `setApproveForAll`.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public;
    /**
     * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to
     * another (`to`).
     *
     * Requirements:
     * - If the caller is not `from`, it must be approved to move this NFT by
     * either `approve` or `setApproveForAll`.
     */
    function transferFrom(address from, address to, uint256 tokenId) public;
    function approve(address to, uint256 tokenId) public;
    function getApproved(uint256 tokenId) public view returns (address operator);

    function setApprovalForAll(address operator, bool _approved) public;
    function isApprovedForAll(address owner, address operator) public view returns (bool);


    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;
}

pragma solidity ^0.5.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.sol";
import "../../drafts/Counters.sol";
import "../../introspection/ERC165.sol";

/**
 * @title ERC721 Non-Fungible Token Standard basic implementation
 * @dev see https://eips.ethereum.org/EIPS/eip-721
 */
contract ERC721 is ERC165, IERC721 {
    using SafeMath for uint256;
    using Address for address;
    using Counters for Counters.Counter;

    // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
    // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`
    bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;

    // Mapping from token ID to owner
    mapping (uint256 => address) private _tokenOwner;

    // Mapping from token ID to approved address
    mapping (uint256 => address) private _tokenApprovals;

    // Mapping from owner to number of owned token
    mapping (address => Counters.Counter) private _ownedTokensCount;

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

    /*
     *     bytes4(keccak256('balanceOf(address)')) == 0x70a08231
     *     bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e
     *     bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3
     *     bytes4(keccak256('getApproved(uint256)')) == 0x081812fc
     *     bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465
     *     bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c
     *     bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd
     *     bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e
     *     bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde
     *
     *     => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^
     *        0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd
     */
    bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;

    constructor () public {
        // register the supported interfaces to conform to ERC721 via ERC165
        _registerInterface(_INTERFACE_ID_ERC721);
    }

    /**
     * @dev Gets the balance of the specified address.
     * @param owner address to query the balance of
     * @return uint256 representing the amount owned by the passed address
     */
    function balanceOf(address owner) public view returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");

        return _ownedTokensCount[owner].current();
    }

    /**
     * @dev Gets the owner of the specified token ID.
     * @param tokenId uint256 ID of the token to query the owner of
     * @return address currently marked as the owner of the given token ID
     */
    function ownerOf(uint256 tokenId) public view returns (address) {
        address owner = _tokenOwner[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");

        return owner;
    }

    /**
     * @dev Approves another address to transfer the given token ID
     * The zero address indicates there is no approved address.
     * There can only be one approved address per token at a given time.
     * Can only be called by the token owner or an approved operator.
     * @param to address to be approved for the given token ID
     * @param tokenId uint256 ID of the token to be approved
     */
    function approve(address to, uint256 tokenId) public {
        address owner = ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(msg.sender == owner || isApprovedForAll(owner, msg.sender),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _tokenApprovals[tokenId] = to;
        emit Approval(owner, to, tokenId);
    }

    /**
     * @dev Gets the approved address for a token ID, or zero if no address set
     * Reverts if the token ID does not exist.
     * @param tokenId uint256 ID of the token to query the approval of
     * @return address currently approved for the given token ID
     */
    function getApproved(uint256 tokenId) public view returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev Sets or unsets the approval of a given operator
     * An operator is allowed to transfer all tokens of the sender on their behalf.
     * @param to operator address to set the approval
     * @param approved representing the status of the approval to be set
     */
    function setApprovalForAll(address to, bool approved) public {
        require(to != msg.sender, "ERC721: approve to caller");

        _operatorApprovals[msg.sender][to] = approved;
        emit ApprovalForAll(msg.sender, to, approved);
    }

    /**
     * @dev Tells whether an operator is approved by a given owner.
     * @param owner owner address which you want to query the approval of
     * @param operator operator address which you want to query the approval of
     * @return bool whether the given operator is approved by the given owner
     */
    function isApprovedForAll(address owner, address operator) public view returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev Transfers the ownership of a given token ID to another address.
     * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.
     * Requires the msg.sender to be the owner, approved, or operator.
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     */
    function transferFrom(address from, address to, uint256 tokenId) public {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(msg.sender, tokenId), "ERC721: transfer caller is not owner nor approved");

        _transferFrom(from, to, tokenId);
    }

    /**
     * @dev Safely transfers the ownership of a given token ID to another address
     * If the target address is a contract, it must implement `onERC721Received`,
     * which is called upon a safe transfer, and return the magic value
     * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
     * the transfer is reverted.
     * Requires the msg.sender to be the owner, approved, or operator
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev Safely transfers the ownership of a given token ID to another address
     * If the target address is a contract, it must implement `onERC721Received`,
     * which is called upon a safe transfer, and return the magic value
     * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
     * the transfer is reverted.
     * Requires the msg.sender to be the owner, approved, or operator
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes data to send along with a safe transfer check
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {
        transferFrom(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns whether the specified token exists.
     * @param tokenId uint256 ID of the token to query the existence of
     * @return bool whether the token exists
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        address owner = _tokenOwner[tokenId];
        return owner != address(0);
    }

    /**
     * @dev Returns whether the given spender can transfer a given token ID.
     * @param spender address of the spender to query
     * @param tokenId uint256 ID of the token to be transferred
     * @return bool whether the msg.sender is approved for the given token ID,
     * is an operator of the owner, or is the owner of the token
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Internal function to mint a new token.
     * Reverts if the given token ID already exists.
     * @param to The address that will own the minted token
     * @param tokenId uint256 ID of the token to be minted
     */
    function _mint(address to, uint256 tokenId) internal {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _tokenOwner[tokenId] = to;
        _ownedTokensCount[to].increment();

        emit Transfer(address(0), to, tokenId);
    }

    /**
     * @dev Internal function to burn a specific token.
     * Reverts if the token does not exist.
     * Deprecated, use _burn(uint256) instead.
     * @param owner owner of the token to burn
     * @param tokenId uint256 ID of the token being burned
     */
    function _burn(address owner, uint256 tokenId) internal {
        require(ownerOf(tokenId) == owner, "ERC721: burn of token that is not own");

        _clearApproval(tokenId);

        _ownedTokensCount[owner].decrement();
        _tokenOwner[tokenId] = address(0);

        emit Transfer(owner, address(0), tokenId);
    }

    /**
     * @dev Internal function to burn a specific token.
     * Reverts if the token does not exist.
     * @param tokenId uint256 ID of the token being burned
     */
    function _burn(uint256 tokenId) internal {
        _burn(ownerOf(tokenId), tokenId);
    }

    /**
     * @dev Internal function to transfer ownership of a given token ID to another address.
     * As opposed to transferFrom, this imposes no restrictions on msg.sender.
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     */
    function _transferFrom(address from, address to, uint256 tokenId) internal {
        require(ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _clearApproval(tokenId);

        _ownedTokensCount[from].decrement();
        _ownedTokensCount[to].increment();

        _tokenOwner[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Internal function to invoke `onERC721Received` on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * This function is deprecated.
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)
        internal returns (bool)
    {
        if (!to.isContract()) {
            return true;
        }

        bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);
        return (retval == _ERC721_RECEIVED);
    }

    /**
     * @dev Private function to clear current approval of a given token ID.
     * @param tokenId uint256 ID of the token to be transferred
     */
    function _clearApproval(uint256 tokenId) private {
        if (_tokenApprovals[tokenId] != address(0)) {
            _tokenApprovals[tokenId] = address(0);
        }
    }
}

pragma solidity ^0.5.0;

import "./IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
contract IERC721Metadata is IERC721 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

pragma solidity ^0.5.0;

import "./ERC721.sol";
import "./IERC721Metadata.sol";
import "../../introspection/ERC165.sol";

contract ERC721Metadata is ERC165, ERC721, IERC721Metadata {
    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Optional mapping for token URIs
    mapping(uint256 => string) private _tokenURIs;

    /*
     *     bytes4(keccak256('name()')) == 0x06fdde03
     *     bytes4(keccak256('symbol()')) == 0x95d89b41
     *     bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd
     *
     *     => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f
     */
    bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;

    /**
     * @dev Constructor function
     */
    constructor (string memory name, string memory symbol) public {
        _name = name;
        _symbol = symbol;

        // register the supported interfaces to conform to ERC721 via ERC165
        _registerInterface(_INTERFACE_ID_ERC721_METADATA);
    }

    /**
     * @dev Gets the token name.
     * @return string representing the token name
     */
    function name() external view returns (string memory) {
        return _name;
    }

    /**
     * @dev Gets the token symbol.
     * @return string representing the token symbol
     */
    function symbol() external view returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns an URI for a given token ID.
     * Throws if the token ID does not exist. May return an empty string.
     * @param tokenId uint256 ID of the token to query
     */
    function tokenURI(uint256 tokenId) external view returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
        return _tokenURIs[tokenId];
    }

    /**
     * @dev Internal function to set the token URI for a given token.
     * Reverts if the token ID does not exist.
     * @param tokenId uint256 ID of the token to set its URI
     * @param uri string URI to assign
     */
    function _setTokenURI(uint256 tokenId, string memory uri) internal {
        require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
        _tokenURIs[tokenId] = uri;
    }

    /**
     * @dev Internal function to burn a specific token.
     * Reverts if the token does not exist.
     * Deprecated, use _burn(uint256) instead.
     * @param owner owner of the token to burn
     * @param tokenId uint256 ID of the token being burned by the msg.sender
     */
    function _burn(address owner, uint256 tokenId) internal {
        super._burn(owner, tokenId);

        // Clear metadata (if any)
        if (bytes(_tokenURIs[tokenId]).length != 0) {
            delete _tokenURIs[tokenId];
        }
    }
}

pragma solidity ^0.5.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
contract IERC721Receiver {
    /**
     * @notice Handle the receipt of an NFT
     * @dev The ERC721 smart contract calls this function on the recipient
     * after a `safeTransfer`. This function MUST return the function selector,
     * otherwise the caller will revert the transaction. The selector to be
     * returned can be obtained as `this.onERC721Received.selector`. This
     * function MAY throw to revert and reject the transfer.
     * Note: the ERC721 contract address is always the message sender.
     * @param operator The address which called `safeTransferFrom` function
     * @param from The address which previously owned the token
     * @param tokenId The NFT identifier which is being transferred
     * @param data Additional data with no specified format
     * @return bytes4 `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
     */
    function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)
    public returns (bytes4);
}

pragma solidity ^0.5.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * [EIP](https://eips.ethereum.org/EIPS/eip-165).
 *
 * 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
     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
     * 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);
}

pragma solidity ^0.5.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the `IERC165` interface.
 *
 * Contracts may inherit from this and call `_registerInterface` to declare
 * their support of an interface.
 */
contract ERC165 is IERC165 {
    /*
     * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7
     */
    bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;

    /**
     * @dev Mapping of interface ids to whether or not it's supported.
     */
    mapping(bytes4 => bool) private _supportedInterfaces;

    constructor () internal {
        // Derived contracts need only register support for their own interfaces,
        // we register support for ERC165 itself here
        _registerInterface(_INTERFACE_ID_ERC165);
    }

    /**
     * @dev See `IERC165.supportsInterface`.
     *
     * Time complexity O(1), guaranteed to always use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool) {
        return _supportedInterfaces[interfaceId];
    }

    /**
     * @dev Registers the contract as an implementer of the interface defined by
     * `interfaceId`. Support of the actual ERC165 interface is automatic and
     * registering its interface id is not required.
     *
     * See `IERC165.supportsInterface`.
     *
     * Requirements:
     *
     * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).
     */
    function _registerInterface(bytes4 interfaceId) internal {
        require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
        _supportedInterfaces[interfaceId] = true;
    }
}

pragma solidity ^0.5.0;

/**
 * @dev Collection of functions related to the address type,
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * This test is non-exhaustive, and there may be false-negatives: during the
     * execution of a contract's constructor, its address will be reported as
     * not containing a contract.
     *
     * > It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies in extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }
}

pragma solidity ^0.5.0;

import "../math/SafeMath.sol";

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath
 * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never
 * directly accessed.
 */
library Counters {
    using SafeMath for uint256;

    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        counter._value += 1;
    }

    function decrement(Counter storage counter) internal {
        counter._value = counter._value.sub(1);
    }
}

pragma solidity ^0.5.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, "SafeMath: division by zero");
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b != 0, "SafeMath: modulo by zero");
        return a % b;
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_vendingMachine","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","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":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"exists","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"mint","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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

000000000000000000000000526c08e5532a9308b3fb33b7968ef78a5005d2ac

-----Decoded View---------------
Arg [0] : _vendingMachine (address): 0x526c08E5532A9308b3fb33b7968eF78a5005d2AC

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000526c08e5532a9308b3fb33b7968ef78a5005d2ac

849:907:12:-;;;;8:9:-1;5:2;;;30:1;27;20:12;5:2;849:907:12;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;915:133:1;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;915:133:1;-1:-1:-1;;;;;;915:133:1;;:::i;:::-;;;;;;;;;;;;;;;;;;1112:83:5;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;8:100:-1;33:3;30:1;27:10;8:100;;;90:11;;;84:18;71:11;;;64:39;52:2;45:10;8:100;;;12:14;1112:83:5;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;4237:200:4;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;4237:200:4;;:::i;:::-;;;;-1:-1:-1;;;;;4237:200:4;;;;;;;;;;;;;;3541:411;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;;3541:411:4;;;;;;;;:::i;:::-;;5877:285;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;;5877:285:4;;;;;;;;;;;;;;;;;:::i;1355:110:12:-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;;1355:110:12;;;;;;;;:::i;6795:132:4:-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;;6795:132:4;;;;;;;;;;;;;;;;;:::i;1650:104:12:-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;1650:104:12;;:::i;2897:223:4:-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;2897:223:4;;:::i;2471:207::-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;2471:207:4;-1:-1:-1;;;;;2471:207:4;;:::i;:::-;;;;;;;;;;;;;;;;1304:87:5;;;:::i;4730:243:4:-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;;4730:243:4;;;;;;;;;;:::i;7632:265::-;;;;;;13:3:-1;8;5:12;2:2;;;30:1;27;20:12;2:2;-1:-1;;;;;7632:265:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;21:11:-1;5:28;;2:2;;;46:1;43;36:12;2:2;7632:265:4;;35:9:-1;28:4;12:14;8:25;5:40;2:2;;;58:1;55;48:12;2:2;7632:265:4;;;;;;100:9:-1;95:1;81:12;77:20;67:8;63:35;60:50;39:11;25:12;22:29;11:107;8:2;;;131:1;128;121:12;8:2;7632:265:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30:3:-1;22:6;14;1:33;99:1;81:16;;74:27;;;;-1:-1;7632:265:4;;-1:-1:-1;7632:265:4;;-1:-1:-1;;;;;7632:265:4:i;1591:202:5:-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;1591:202:5;;:::i;5295:145:4:-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;;5295:145:4;;;;;;;;;;:::i;915:133:1:-;-1:-1:-1;;;;;;1008:33:1;985:4;1008:33;;;;;;;;;;;;;;915:133::o;1112:83:5:-;1183:5;1176:12;;;;;;;;-1:-1:-1;;1176:12:5;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1151:13;;1176:12;;1183:5;;1176:12;;1183:5;1176:12;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1112:83;:::o;4237:200:4:-;4296:7;4323:16;4331:7;4323;:16::i;:::-;4315:73;;;;-1:-1:-1;;;4315:73:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;4406:24:4;;;;:15;:24;;;;;;-1:-1:-1;;;;;4406:24:4;;4237:200::o;3541:411::-;3604:13;3620:16;3628:7;3620;:16::i;:::-;3604:32;;3660:5;-1:-1:-1;;;;;3654:11:4;:2;-1:-1:-1;;;;;3654:11:4;;;3646:57;;;;-1:-1:-1;;;3646:57:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;3722:10;-1:-1:-1;;;;;3722:19:4;;;;:58;;;3745:35;3762:5;3769:10;3745:16;:35::i;:::-;3714:148;;;;-1:-1:-1;;;3714:148:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;3873:24;;;;:15;:24;;;;;;:29;;-1:-1:-1;;;;;;3873:29:4;-1:-1:-1;;;;;3873:29:4;;;;;;;;;3917:28;;3873:24;;3917:28;;;;;;;3541:411;;;:::o;5877:285::-;6019:39;6038:10;6050:7;6019:18;:39::i;:::-;6011:101;;;;-1:-1:-1;;;6011:101:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6123:32;6137:4;6143:2;6147:7;6123:13;:32::i;:::-;5877:285;;;:::o;1355:110:12:-;619:14:13;;-1:-1:-1;;;;;619:14:13;605:10;:28;597:75;;;;-1:-1:-1;;;597:75:13;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1438:20:12;1444:3;1449:8;1438:5;:20::i;:::-;1355:110;;:::o;6795:132:4:-;6881:39;6898:4;6904:2;6908:7;6881:39;;;;;;;;;;;;:16;:39::i;1650:104:12:-;1707:4;1730:17;1738:8;1730:7;:17::i;:::-;1723:24;1650:104;-1:-1:-1;;1650:104:12:o;2897:223:4:-;2952:7;2987:20;;;:11;:20;;;;;;-1:-1:-1;;;;;2987:20:4;3025:19;3017:73;;;;-1:-1:-1;;;3017:73:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2471:207;2526:7;-1:-1:-1;;;;;2553:19:4;;2545:74;;;;-1:-1:-1;;;2545:74:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;2637:24:4;;;;;;:17;:24;;;;;:34;;:32;:34::i;1304:87:5:-;1377:7;1370:14;;;;;;;;-1:-1:-1;;1370:14:5;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1345:13;;1370:14;;1377:7;;1370:14;;1377:7;1370:14;;;;;;;;;;;;;;;;;;;;;;;;4730:243:4;-1:-1:-1;;;;;4809:16:4;;4815:10;4809:16;;4801:54;;;;;-1:-1:-1;;;4801:54:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;4885:10;4866:30;;;;:18;:30;;;;;;;;-1:-1:-1;;;;;4866:34:4;;;;;;;;;;;;:45;;-1:-1:-1;;4866:45:4;;;;;;;;;;4926:40;;;;;;;4866:34;;4885:10;4926:40;;;;;;;;;;;4730:243;;:::o;7632:265::-;7738:31;7751:4;7757:2;7761:7;7738:12;:31::i;:::-;7787:48;7810:4;7816:2;7820:7;7829:5;7787:22;:48::i;:::-;7779:111;;;;-1:-1:-1;;;7779:111:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;7632:265;;;;:::o;1591:202:5:-;1649:13;1682:16;1690:7;1682;:16::i;:::-;1674:76;;;;-1:-1:-1;;;1674:76:5;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1767:19;;;;:10;:19;;;;;;;;;1760:26;;;;;;-1:-1:-1;;1760:26:5;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1767:19;;1760:26;;1767:19;1760:26;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1591:202;;;:::o;5295:145:4:-;-1:-1:-1;;;;;5398:25:4;;;5375:4;5398:25;;;:18;:25;;;;;;;;:35;;;;;;;;;;;;;;;5295:145::o;8092:152::-;8149:4;8181:20;;;:11;:20;;;;;;-1:-1:-1;;;;;8181:20:4;8218:19;;;8092:152::o;8605:329::-;8690:4;8714:16;8722:7;8714;:16::i;:::-;8706:73;;;;-1:-1:-1;;;8706:73:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;8789:13;8805:16;8813:7;8805;:16::i;:::-;8789:32;;8850:5;-1:-1:-1;;;;;8839:16:4;:7;-1:-1:-1;;;;;8839:16:4;;:51;;;;8883:7;-1:-1:-1;;;;;8859:31:4;:20;8871:7;8859:11;:20::i;:::-;-1:-1:-1;;;;;8859:31:4;;8839:51;:87;;;;8894:32;8911:5;8918:7;8894:16;:32::i;:::-;8831:96;8605:329;-1:-1:-1;;;;8605:329:4:o;10751:447::-;10864:4;-1:-1:-1;;;;;10844:24:4;:16;10852:7;10844;:16::i;:::-;-1:-1:-1;;;;;10844:24:4;;10836:78;;;;-1:-1:-1;;;10836:78:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;10932:16:4;;10924:65;;;;-1:-1:-1;;;10924:65:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;11000:23;11015:7;11000:14;:23::i;:::-;-1:-1:-1;;;;;11034:23:4;;;;;;:17;:23;;;;;:35;;:33;:35::i;:::-;-1:-1:-1;;;;;11079:21:4;;;;;;:17;:21;;;;;:33;;:31;:33::i;:::-;11123:20;;;;:11;:20;;;;;;:25;;-1:-1:-1;;;;;;11123:25:4;-1:-1:-1;;;;;11123:25:4;;;;;;;;;11164:27;;11123:20;;11164:27;;;;;;;10751:447;;;:::o;9179:327::-;-1:-1:-1;;;;;9250:16:4;;9242:61;;;;;-1:-1:-1;;;9242:61:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;9322:16;9330:7;9322;:16::i;:::-;9321:17;9313:58;;;;;-1:-1:-1;;;9313:58:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;9382:20;;;;:11;:20;;;;;;;;:25;;-1:-1:-1;;;;;;9382:25:4;-1:-1:-1;;;;;9382:25:4;;;;;;;;9417:21;;:17;:21;;;;;:33;;:31;:33::i;:::-;9466;;9491:7;;-1:-1:-1;;;;;9466:33:4;;;9483:1;;9466:33;;9483:1;;9466:33;9179:327;;:::o;1063:112:0:-;1154:14;;1063:112::o;11771:347:4:-;11892:4;11917:15;:2;-1:-1:-1;;;;;11917:13:4;;:15::i;:::-;11912:58;;-1:-1:-1;11955:4:4;11948:11;;11912:58;11996:70;;-1:-1:-1;;;11996:70:4;;12033:10;11996:70;;;;;;-1:-1:-1;;;;;11996:70:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;11980:13;;11996:36;;;;;;12033:10;;12045:4;;12051:7;;12060:5;;11996:70;;;;;;;;;;;11980:13;8:100:-1;33:3;30:1;27:10;8:100;;;90:11;;;84:18;71:11;;;64:39;52:2;45:10;8:100;;;12:14;11996:70:4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;8:9:-1;5:2;;;30:1;27;20:12;5:2;11996:70:4;;;;8:9:-1;5:2;;;45:16;42:1;39;24:38;77:16;74:1;67:27;5:2;11996:70:4;;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;11996:70:4;-1:-1:-1;;;;;;12084:26:4;-1:-1:-1;;;12084:26:4;;-1:-1:-1;;11771:347:4;;;;;;:::o;12280:171::-;12379:1;12343:24;;;:15;:24;;;;;;-1:-1:-1;;;;;12343:24:4;:38;12339:106;;12432:1;12397:24;;;:15;:24;;;;;:37;;-1:-1:-1;;;;;;12397:37:4;;;12339:106;12280:171;:::o;1276:108:0:-;1356:14;;:21;;1375:1;1356:21;:18;:21;:::i;:::-;1339:38;;1276:108::o;1181:89::-;1244:19;;1262:1;1244:19;;;1181:89::o;542:413:9:-;902:20;940:8;;;542:413::o;1274:179:3:-;1332:7;1364:1;1359;:6;;1351:49;;;;;-1:-1:-1;;;1351:49:3;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;1422:5:3;;;1274:179::o

bzzr://bcf16377ad3a45e2e8a55bbe97ace92a91e2b481bc154ef24d13e5b6710328a4