Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

pragma solidity 0.8.20;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract BurnContract is Ownable {
    // @dev SafeERC20 unnecessary, contract to be used with known tokens

    address public constant burnAddress = 0x000000000000000000000000000000000000dEaD;
    address public constant inputTokenAddress = 0x0f7F961648aE6Db43C75663aC7E5414Eb79b5704;
    address public constant flashTokenAddress = 0xB1f1F47061A7Be15C69f378CB3f69423bD58F2F8;
    address public immutable epochTokenAddress;
    mapping(address => uint256) public redemptionRate;
    uint256 public immutable startDate;
    uint256 public endDate = 1735689600;

    constructor(
        address _epochTokenAddress,
        uint256 _flashRedemptionRate,
        uint256 _epochRedemptionRate,
        uint256 _startDate,
        address _newOwner
    ) Ownable(_newOwner) {
        epochTokenAddress = _epochTokenAddress;
        redemptionRate[flashTokenAddress] = _flashRedemptionRate;
        redemptionRate[epochTokenAddress] = _epochRedemptionRate;
        startDate = _startDate;
    }

    function setEndDate(uint256 _newEndDate) public onlyOwner {
        require(_newEndDate < endDate);
        endDate = _newEndDate;
    }

    // @notice Redeems specific number of XIO tokens
    function redeem(uint256 _tokenAmount) public {
        require(block.timestamp >= startDate, "REDEMPTION NOT STARTED");
        require(block.timestamp < endDate, "REDEMPTION ENDED");

        // Burn the input token from the user
        IERC20(inputTokenAddress).transferFrom(msg.sender, burnAddress, _tokenAmount);

        uint256 flashTokenAmount = (_tokenAmount * redemptionRate[flashTokenAddress]) / 1e18;
        uint256 epochTokenAmount = (_tokenAmount * redemptionRate[epochTokenAddress]) / 1e18;

        // Transfer both Flash and EPOCH to the user
        IERC20(flashTokenAddress).transfer(msg.sender, flashTokenAmount);
        IERC20(epochTokenAddress).transfer(msg.sender, epochTokenAmount);
    }

    // @notice Redeems all held XIO tokens
    function redeemAll() external {
        redeem(IERC20(inputTokenAddress).balanceOf(msg.sender));
    }

    // @notice After end date, allows burning of all remaining EPOCH and transfers remaining Flash to Flash treasury
    function end() external {
        require(block.timestamp > endDate, "REDEMPTION STILL ACTIVE");

        uint256 flashTokenAmount = IERC20(flashTokenAddress).balanceOf(address(this));
        uint256 epochTokenAmount = IERC20(epochTokenAddress).balanceOf(address(this));

        IERC20(flashTokenAddress).transfer(0x8603FfE7B00CCd759f28aBfE448454A24cFba581, flashTokenAmount);
        ERC20Burnable(epochTokenAddress).burn(epochTokenAmount);
    }

    // @notice After end date and once "end" has been called, deletes this contract from blockchain
    function end2() external {
        // @dev selfdestruct is deprecated and may introduce breaking changes
        // @dev therefore it has been implemented separately.
        require(block.timestamp > endDate, "REDEMPTION STILL ACTIVE");

        uint256 flashTokenAmount = IERC20(flashTokenAddress).balanceOf(address(this));
        uint256 epochTokenAmount = IERC20(epochTokenAddress).balanceOf(address(this));
        require(flashTokenAmount == 0 && epochTokenAmount == 0, "BALANCE REMAINING");

        selfdestruct(payable(address(0)));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../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.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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 v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity ^0.8.20;

import {ERC20} from "../ERC20.sol";
import {Context} from "../../../utils/Context.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys a `value` amount of tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 value) public virtual {
        _burn(_msgSender(), value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, deducting from
     * the caller's allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `value`.
     */
    function burnFrom(address account, uint256 value) public virtual {
        _spendAllowance(account, _msgSender(), value);
        _burn(account, value);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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;
    }
}

{
  "metadata": {
    "bytecodeHash": "none",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 800
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_epochTokenAddress","type":"address"},{"internalType":"uint256","name":"_flashRedemptionRate","type":"uint256"},{"internalType":"uint256","name":"_epochRedemptionRate","type":"uint256"},{"internalType":"uint256","name":"_startDate","type":"uint256"},{"internalType":"address","name":"_newOwner","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"burnAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"end","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"end2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"endDate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"epochTokenAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"flashTokenAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"inputTokenAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenAmount","type":"uint256"}],"name":"redeem","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"redeemAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"redemptionRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newEndDate","type":"uint256"}],"name":"setEndDate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startDate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

00000000000000000000000097d0cfeb4fde54b430307c9482d6f79c761fe9b60000000000000000000000000000000000000000000000000437648d6e5a16d0000000000000000000000000000000000000000000000000036d4869a84b3f7800000000000000000000000000000000000000000000000000000000655b82800000000000000000000000005089722613c2ccee071c39c59e9889641f435f15

-----Decoded View---------------
Arg [0] : _epochTokenAddress (address): 0x97D0CfEB4FdE54B430307c9482d6f79C761Fe9B6
Arg [1] : _flashRedemptionRate (uint256): 303822058475362000
Arg [2] : _epochRedemptionRate (uint256): 246933173207515000
Arg [3] : _startDate (uint256): 1700496000
Arg [4] : _newOwner (address): 0x5089722613C2cCEe071C39C59e9889641f435F15

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 00000000000000000000000097d0cfeb4fde54b430307c9482d6f79c761fe9b6
Arg [1] : 0000000000000000000000000000000000000000000000000437648d6e5a16d0
Arg [2] : 000000000000000000000000000000000000000000000000036d4869a84b3f78
Arg [3] : 00000000000000000000000000000000000000000000000000000000655b8280
Arg [4] : 0000000000000000000000005089722613c2ccee071c39c59e9889641f435f15