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// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {IMultiTokenBurnRegistry} from "./common/IMultiTokenBurnRegistry.sol";
import {IMultiTokenMintRegistry} from "./common/IMultiTokenMintRegistry.sol";
import {IERC20CustomErrors} from "./ERC20/extensions/IERC20CustomErrors.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import "./ERC20/extensions/ERC20ProofOfBurn.sol";

/// @title An ERC20 token supporting an external registry.
/// @author BillSchumacher
/// @custom:security-contact [email protected]
contract HotDog is ERC20, Ownable, ERC20ProofOfBurn, ERC20Burnable {
    address private _registry;
    uint256 private _lastFee;
    uint256 private _zeroAddress;
    uint256 private _mintFee = 0.01 ether;
    string private _description;

    error InsufficientMintFee(uint256 mintFee, uint256 msgValue);

    constructor(
        address registry_,
        address[] memory burnAddresses,
        address[] memory contractAddresses
    )
        ERC20("Hot Dog", "HOTDOG")
        Ownable(msg.sender)
        ERC20ProofOfBurn(burnAddresses, contractAddresses)
    {
        _registry = registry_;
    }

    /// @inheritdoc ERC20
    function balanceOf(address account)
        public
        view
        virtual
        override
        returns (uint256)
    {
        if (account == address(0)) return _zeroAddress;
        return ERC20.balanceOf(account);
    }

    /// @notice Get the description of the token.
    /// @dev Returns the description of the token.
    /// @return (string) - the description of the token.
    function description() public view returns (string memory) {
        return _description;
    }

    /// @notice Set the description of the token.
    /// @dev Set the description of the token.
    /// @param desc (string) - the description of the token.
    function setDesc(string calldata desc) public onlyOwner {
        _description = desc;
    }

    /// @inheritdoc ERC20
    function _update(
        address from,
        address to,
        uint256 value
    ) internal virtual override(ERC20) {
        ERC20._update(from, to, value);
        if (to == address(0)) {
            _zeroAddress += value;
            this._updateBurnRegistry(from, value);
        }
        if (from == address(0)) {
            this._updateMintRegistry(to, value);
        }
    }

    /// @notice Get the current fee to mint tokens.
    /// @dev Returns the current fee to mint tokens.
    /// @return (uint256) - the current fee to mint tokens.
    function getMintFee() public view returns (uint256) {
        return _mintFee;
    }

    /// @inheritdoc ERC20ProofOfBurn
    function beforeMintBurned(
        address sender,
        address account
    ) internal override {
        uint256 currentMintFee = _mintFee;
        uint256 sentValue = msg.value;
        if (sentValue < currentMintFee) {
            revert InsufficientMintFee(currentMintFee, sentValue);
        }
        _mintFee = currentMintFee * 1001 / 1000;
        sender;
        account;
    }

    /// @dev Update the burn registry.
    /// @param account (address) - the address of the account.
    /// @param value (uint256) - the amount of tokens to burn.
    function _updateBurnRegistry(address account, uint256 value) external {
        if (msg.sender != address(this)) revert OwnableUnauthorizedAccount(msg.sender);
        //_registry.call(abi.encodeWithSignature("updateBurnRegistry(address,uint256)", account, value));
        IMultiTokenBurnRegistry(_registry).updateBurnRegistry(account, value);
    }

    /// @dev Update the mint registry.
    /// @param account (address) - the address of the account.
    /// @param value (uint256) - the amount of tokens to mint.
    function _updateMintRegistry(address account, uint256 value) external {
        if (msg.sender != address(this)) revert OwnableUnauthorizedAccount(msg.sender);
        //_registry.call(abi.encodeWithSignature("updateMintRegistry(address,uint256)", account, value));
        IMultiTokenMintRegistry(_registry).updateMintRegistry(account, value);
    }

    /// @notice Allows the token to receive ether.
    receive() external payable {}

    /// @notice Allows the token to withdraw ether.
    /// @dev Allows the token to withdraw ether.
    function withdraw() public onlyOwner {
        uint256 value = address(this).balance;
        address to = owner();
        (bool success,) = to.call{value: value}("");
        if (!success) revert IERC20CustomErrors.ERC20TransferFailed(to, value);
    }
}

// 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
pragma solidity 0.8.25;

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

/// @title Multi-token Burn registry interface.
/// @author BillSchumacher
/// @custom:security-contact [email protected]
interface IMultiTokenBurnRegistry is ITokenBurnRegistryStats {
    event TokenBurned(
        address indexed token,
        address indexed account,
        uint256 value,
        uint256 totalBurned,
        uint256 totalBurners
    );

    /// @notice Get the total amount of burners.
    /// @dev Returns the total amount of burners.
    /// @param token (address) - the address of the token.
    /// @return (uint256) - the total amount of burners.
    function totalBurners(address token) external view returns (uint256);

    /// @notice Get the address of the burner at the given index.
    /// @dev Returns the address of the burner at the given index.
    /// @param token (address) - the address of the token.
    /// @param index (uint256) - the index of the burner.
    /// @return (address) - the address of the burner.
    function burner(
        address token,
        uint256 index
    ) external view returns (address);

    /// @notice Get the addresses of the first `amount` burners.
    /// @dev Returns the addresses of the first `amount` burners.
    /// @param token (address) - the address of the token.
    /// @param amount (uint256) - the amount of burners.
    /// @return (address[] memory) - the addresses of the burners.
    function firstBurners(
        address token,
        uint256 amount
    ) external view returns (address[] memory);

    /// @notice Get the addresses of the last `amount` burners.
    /// @dev Returns the addresses of the last `amount` burners.
    /// @param token (address) - the address of the token.
    /// @param amount (uint256) - the amount of burners.
    /// @return (address[] memory) - the addresses of the burners.
    function lastBurners(
        address token,
        uint256 amount
    ) external view returns (address[] memory);

    /// @notice Get the amount of tokens burned by the given address.
    /// @dev Returns the amount of tokens burned by the given address.
    /// @param token (address) - the address of the token.
    /// @param account (address) - the address of the account.
    /// @return (uint256) - the total amount of tokens burned.
    function burnedFrom(
        address token,
        address account
    ) external view returns (uint256);

    /// @notice Get the total amount of burners.
    /// @dev Returns the total amount of burners.
    /// @param token (address) - the address of the token.
    /// @return (uint256) - the total amount of burners.
    function burns(address token) external view returns (uint256);

    /// @notice Get the total amount of tokens burned.
    /// @dev Returns the total amount of tokens burned.
    /// @param token (address) - the address of the token.
    /// @return (uint256) - the total amount of tokens burned.
    function totalBurned(address token) external view returns (uint256);

    /// @dev Update the burn registry, uses the sender as the token address.
    /// @param account (address) - the address of the account.
    /// @param value (uint256) - the amount of tokens to burn.
    function updateBurnRegistry(
        address account,
        uint256 value
    ) external payable;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

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

/// @title Multi-token mint registry interface.
/// @author BillSchumacher
/// @custom:security-contact [email protected]
interface IMultiTokenMintRegistry is ITokenMintRegistryStats {
    event TokenMinted(
        address indexed token,
        address indexed account,
        uint256 value,
        uint256 totalMinted,
        uint256 totalMinters
    );
    /// @notice Get the address of the minter at the given index.
    /// @dev Returns the address of the minter at the given index.
    /// @param token (address) - the address of the token.
    /// @param index (uint256) - the index of the minter.
    /// @return (address) - the address of the minter.

    function minter(
        address token,
        uint256 index
    ) external view returns (address);

    /// @notice Get the total amount of minters.
    /// @dev Returns the total amount of minters.
    /// @param token (address) - the address of the token.
    /// @return (uint256) - the total amount of minters.
    function totalMinters(address token) external view returns (uint256);

    /// @notice Get the addresses of the first `amount` minters.
    /// @dev Returns the addresses of the first `amount` minters.
    /// @param token (address) - the address of the token.
    /// @param amount (uint256) - the amount of minters.
    /// @return (address[] memory) - the addresses of the minters.
    function firstMinters(
        address token,
        uint256 amount
    ) external view returns (address[] memory);

    /// @notice Get the addresses of the last `amount` minters.
    /// @dev Returns the addresses of the last `amount` minters.
    /// @param token (address) - the address of the token.
    /// @param amount (uint256) - the amount of minters.
    /// @return (address[] memory) - the addresses of the minters.
    function lastMinters(
        address token,
        uint256 amount
    ) external view returns (address[] memory);

    /// @notice Get the amount of tokens minted by the given address.
    /// @dev Returns the amount of tokens minted by the given address.
    /// @param token (address) - the address of the token.
    /// @param account (address) - the address of the account.
    /// @return (uint256) - the amount of tokens minted.
    function mintedBy(
        address token,
        address account
    ) external view returns (uint256);

    /// @notice Get the total amount of tokens minted.
    /// @dev Returns the total amount of tokens minted.
    /// @param token (address) - the address of the token.
    /// @return (uint256) - the total amount of tokens minted.
    function totalMinted(address token) external view returns (uint256);

    /// @dev Update the mint registry.
    /// @param account (address) - the address of the account.
    /// @param value (uint256) - the amount of tokens to mint.
    function updateMintRegistry(
        address account,
        uint256 value
    ) external payable;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

interface IERC20CustomErrors {
    error ERC20TransferFailed(address to, uint256 balance);
}

// 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
pragma solidity 0.8.25;

import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {Context} from "@openzeppelin/contracts/utils/Context.sol";
import {NoTokensToMint} from "./ERC20MintyBurnyErrors.sol";

/// @title A smart contract that checks for burned tokens and mints new tokens based on the burned tokens.
/// @author BillSchumacher
/// @custom:security-contact [email protected]
abstract contract ERC20ProofOfBurn is Context, ERC20 {
    uint256 private _lastBurned;
    address[] internal _burnAddresses;
    address[] internal _burnContracts;

    constructor(
        address[] memory burnAddresses,
        address[] memory burnContracts
    ) {
        _burnAddresses = burnAddresses;
        _burnContracts = burnContracts;
    }

    /// @notice Get the last amount of tokens that were burned.
    /// @dev Returns the last amount of tokens that were burned.
    /// @return (uint256) - the last amount of tokens that were burned.
    function lastBurned() public view returns (uint256) {
        return _lastBurned;
    }

    /// @dev Set the last amount of tokens that were burned. Override to customize.
    /// @param value (uint256) - the last amount of tokens that were burned.
    function setLastBurned(uint256 value) internal virtual {
        _lastBurned = value;
    }

    /// @notice Get the amount of tokens eligible to be minted.
    /// @dev Returns the amount of tokens eligible to be minted.
    /// @return balance (uint256) - the amount of tokens eligible to be minted.
    function getCurrentBurned()
        public
        payable
        virtual
        returns (uint256 balance)
    {
        address[] memory eligibleBurnAddresses = _burnAddresses;
        address[] memory eligibleBurnContracts = _burnContracts;
        uint256 addressLength = _burnAddresses.length;
        uint256 contractLength = _burnContracts.length;
        for (uint256 i; i < contractLength;) {
            ERC20 tokenContract = ERC20(eligibleBurnContracts[i]);
            for (uint256 j; j < addressLength;) {
                balance += tokenContract.balanceOf(eligibleBurnAddresses[j]);
                unchecked {
                    ++j;
                }
            }
            unchecked {
                ++i;
            }
        }
        return balance;
    }

    /// @notice Get the ratio of tokens to mint.
    /// @dev Returns the ratio of tokens to mint. Override to customize. Divided by 10000. 5000 = 0.5 (default)
    /// @return (uint256) - the ratio of tokens to mint.
    function mintRatio() public pure virtual returns (uint256) {
        return 5000;
    }

    /// @notice Get the ratio of tokens to mint for ProofOfBurn.
    /// @dev Returns the ratio of tokens to mint for ProofOfBurn. Override to customize. Divided by 10000. 5000 = 0.5 (default)
    /// @return (uint256) - the ratio of tokens to mint.
    function burnMintRatio() public view virtual returns (uint256) {
        return mintRatio();
    }

    /// @dev Handle access control, accounting, and any conditions here before minting, revert if failed.
    /// @param sender (address) - the address of the sender.
    /// @param account (address) - the address of the account.
    function beforeMintBurned(
        address sender,
        address account
    ) internal virtual {}

    /// @dev Update the mint registry or perform other accounting. Override to customize.
    /// @param account (address) - the address of the account.
    /// @param value (uint256) - the amount of tokens minted.
    function afterMintBurned(address account, uint256 value) internal virtual {}

    /// @dev Mints the burned tokens for the configured contracts and addresses.
    /// @param account (address) - the address of the account.
    /// @return (uint256) - the amount of tokens minted.
    function _doMintBurned(address account)
        internal
        virtual
        returns (uint256)
    {
        uint256 balance = getCurrentBurned();
        uint256 tokensLastBurned = lastBurned();
        if (balance <= tokensLastBurned) {
            revert NoTokensToMint();
        }
        uint256 tokens = (balance - tokensLastBurned) * burnMintRatio() / 10000;
        setLastBurned(balance);
        _mint(account, tokens);
        return tokens;
    }

    /// @notice Mints the burned tokens for the configured contracts and addresses.
    /// @dev Mints the burned tokens for the configured contracts and addresses.
    /// @return tokens (uint256) - the amount of tokens minted.
    function mintBurned() public payable virtual returns (uint256 tokens) {
        address sender = _msgSender();
        beforeMintBurned(sender, sender);
        tokens = _doMintBurned(sender);
        afterMintBurned(sender, tokens);
        return tokens;
    }

    /// @notice Mints the burned tokens for the configured contracts and addresses.
    /// @dev Mints the burned tokens for the configured contracts and addresses.
    /// @return tokens (uint256) - the amount of tokens minted.
    function mintBurnedFor(address account)
        public
        payable
        virtual
        returns (uint256 tokens)
    {
        address sender = _msgSender();
        beforeMintBurned(sender, account);
        tokens = _doMintBurned(account);
        afterMintBurned(account, tokens);
        return tokens;
    }
}

// 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) (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 v5.0.1) (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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// 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
pragma solidity 0.8.25;

/// @title Token Burn registry interface.
/// @author BillSchumacher
/// @custom:security-contact [email protected]
interface ITokenBurnRegistryStats {
    struct TokenBurnStats {
        uint256 totalBurned;
        uint256 totalBurners;
        mapping(address account => uint256 value) burned;
        mapping(uint256 index => address account) burnAddresses;
    }

    event Burned(
        address indexed account,
        uint256 value,
        uint256 totalBurned,
        uint256 totalBurners
    );
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

/// @title Multi-token mint registry interface.
/// @author BillSchumacher
/// @custom:security-contact [email protected]
interface ITokenMintRegistryStats {
    struct TokenMintStats {
        uint256 totalMinted;
        uint256 totalMinters;
        mapping(address => uint256) minted;
        mapping(uint256 => address) mintAddresses;
    }

    event Minted(
        address indexed account,
        uint256 value,
        uint256 totalMinted,
        uint256 totalMinters
    );
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

error NoTokensToMint();

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  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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

-----Decoded View---------------
Arg [0] : registry_ (address): 0x4fbC1714767861e4293dDc4764C2e68fBe1f3856
Arg [1] : burnAddresses (address[]): 0x0000000000000000000000000000000000000000,0xdEAD000000000000000042069420694206942069,0x000000000000000000000000000000000000dEaD
Arg [2] : contractAddresses (address[]): 0x95aD61b0a150d79219dCF64E1E6Cc01f0B64C4cE

-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 0000000000000000000000004fbc1714767861e4293ddc4764c2e68fbe1f3856
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [5] : 000000000000000000000000dead000000000000000042069420694206942069
Arg [6] : 000000000000000000000000000000000000000000000000000000000000dead
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [8] : 00000000000000000000000095ad61b0a150d79219dcf64e1e6cc01f0b64c4ce