// File: @manifoldxyz/creator-core-solidity/contracts/core/ICreatorCore.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Core creator interface
 */
interface ICreatorCore is IERC165 {

    event ExtensionRegistered(address indexed extension, address indexed sender);
    event ExtensionUnregistered(address indexed extension, address indexed sender);
    event ExtensionBlacklisted(address indexed extension, address indexed sender);
    event MintPermissionsUpdated(address indexed extension, address indexed permissions, address indexed sender);
    event RoyaltiesUpdated(uint256 indexed tokenId, address payable[] receivers, uint256[] basisPoints);
    event DefaultRoyaltiesUpdated(address payable[] receivers, uint256[] basisPoints);
    event ApproveTransferUpdated(address extension);
    event ExtensionRoyaltiesUpdated(address indexed extension, address payable[] receivers, uint256[] basisPoints);
    event ExtensionApproveTransferUpdated(address indexed extension, bool enabled);

    /**
     * @dev gets address of all extensions
     */
    function getExtensions() external view returns (address[] memory);

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * extension address must point to a contract implementing ICreatorExtension.
     * Returns True if newly added, False if already added.
     */
    function registerExtension(address extension, string calldata baseURI) external;

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * extension address must point to a contract implementing ICreatorExtension.
     * Returns True if newly added, False if already added.
     */
    function registerExtension(address extension, string calldata baseURI, bool baseURIIdentical) external;

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * Returns True if removed, False if already removed.
     */
    function unregisterExtension(address extension) external;

    /**
     * @dev blacklist an extension.  Can only be called by contract owner or admin.
     * This function will destroy all ability to reference the metadata of any tokens created
     * by the specified extension. It will also unregister the extension if needed.
     * Returns True if removed, False if already removed.
     */
    function blacklistExtension(address extension) external;

    /**
     * @dev set the baseTokenURI of an extension.  Can only be called by extension.
     */
    function setBaseTokenURIExtension(string calldata uri) external;

    /**
     * @dev set the baseTokenURI of an extension.  Can only be called by extension.
     * For tokens with no uri configured, tokenURI will return "uri+tokenId"
     */
    function setBaseTokenURIExtension(string calldata uri, bool identical) external;

    /**
     * @dev set the common prefix of an extension.  Can only be called by extension.
     * If configured, and a token has a uri set, tokenURI will return "prefixURI+tokenURI"
     * Useful if you want to use ipfs/arweave
     */
    function setTokenURIPrefixExtension(string calldata prefix) external;

    /**
     * @dev set the tokenURI of a token extension.  Can only be called by extension that minted token.
     */
    function setTokenURIExtension(uint256 tokenId, string calldata uri) external;

    /**
     * @dev set the tokenURI of a token extension for multiple tokens.  Can only be called by extension that minted token.
     */
    function setTokenURIExtension(uint256[] memory tokenId, string[] calldata uri) external;

    /**
     * @dev set the baseTokenURI for tokens with no extension.  Can only be called by owner/admin.
     * For tokens with no uri configured, tokenURI will return "uri+tokenId"
     */
    function setBaseTokenURI(string calldata uri) external;

    /**
     * @dev set the common prefix for tokens with no extension.  Can only be called by owner/admin.
     * If configured, and a token has a uri set, tokenURI will return "prefixURI+tokenURI"
     * Useful if you want to use ipfs/arweave
     */
    function setTokenURIPrefix(string calldata prefix) external;

    /**
     * @dev set the tokenURI of a token with no extension.  Can only be called by owner/admin.
     */
    function setTokenURI(uint256 tokenId, string calldata uri) external;

    /**
     * @dev set the tokenURI of multiple tokens with no extension.  Can only be called by owner/admin.
     */
    function setTokenURI(uint256[] memory tokenIds, string[] calldata uris) external;

    /**
     * @dev set a permissions contract for an extension.  Used to control minting.
     */
    function setMintPermissions(address extension, address permissions) external;

    /**
     * @dev Configure so transfers of tokens created by the caller (must be extension) gets approval
     * from the extension before transferring
     */
    function setApproveTransferExtension(bool enabled) external;

    /**
     * @dev get the extension of a given token
     */
    function tokenExtension(uint256 tokenId) external view returns (address);

    /**
     * @dev Set default royalties
     */
    function setRoyalties(address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Set royalties of a token
     */
    function setRoyalties(uint256 tokenId, address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Set royalties of an extension
     */
    function setRoyaltiesExtension(address extension, address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Get royalites of a token.  Returns list of receivers and basisPoints
     */
    function getRoyalties(uint256 tokenId) external view returns (address payable[] memory, uint256[] memory);
    
    // Royalty support for various other standards
    function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory);
    function getFeeBps(uint256 tokenId) external view returns (uint[] memory);
    function getFees(uint256 tokenId) external view returns (address payable[] memory, uint256[] memory);
    function royaltyInfo(uint256 tokenId, uint256 value) external view returns (address, uint256);

    /**
     * @dev Set the default approve transfer contract location.
     */
    function setApproveTransfer(address extension) external; 

    /**
     * @dev Get the default approve transfer contract location.
     */
    function getApproveTransfer() external view returns (address);
}

// File: @manifoldxyz/creator-core-solidity/contracts/core/IERC721CreatorCore.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "./ICreatorCore.sol";

/**
 * @dev Core ERC721 creator interface
 */
interface IERC721CreatorCore is ICreatorCore {

    /**
     * @dev mint a token with no extension. Can only be called by an admin.
     * Returns tokenId minted
     */
    function mintBase(address to) external returns (uint256);

    /**
     * @dev mint a token with no extension. Can only be called by an admin.
     * Returns tokenId minted
     */
    function mintBase(address to, string calldata uri) external returns (uint256);

    /**
     * @dev batch mint a token with no extension. Can only be called by an admin.
     * Returns tokenId minted
     */
    function mintBaseBatch(address to, uint16 count) external returns (uint256[] memory);

    /**
     * @dev batch mint a token with no extension. Can only be called by an admin.
     * Returns tokenId minted
     */
    function mintBaseBatch(address to, string[] calldata uris) external returns (uint256[] memory);

    /**
     * @dev mint a token. Can only be called by a registered extension.
     * Returns tokenId minted
     */
    function mintExtension(address to) external returns (uint256);

    /**
     * @dev mint a token. Can only be called by a registered extension.
     * Returns tokenId minted
     */
    function mintExtension(address to, string calldata uri) external returns (uint256);

    /**
     * @dev mint a token. Can only be called by a registered extension.
     * Returns tokenId minted
     */
    function mintExtension(address to, uint80 data) external returns (uint256);

    /**
     * @dev batch mint a token. Can only be called by a registered extension.
     * Returns tokenIds minted
     */
    function mintExtensionBatch(address to, uint16 count) external returns (uint256[] memory);

    /**
     * @dev batch mint a token. Can only be called by a registered extension.
     * Returns tokenId minted
     */
    function mintExtensionBatch(address to, string[] calldata uris) external returns (uint256[] memory);

    /**
     * @dev batch mint a token. Can only be called by a registered extension.
     * Returns tokenId minted
     */
    function mintExtensionBatch(address to, uint80[] calldata data) external returns (uint256[] memory);

    /**
     * @dev burn a token. Can only be called by token owner or approved address.
     * On burn, calls back to the registered extension's onBurn method
     */
    function burn(uint256 tokenId) external;

    /**
     * @dev get token data
     */
    function tokenData(uint256 tokenId) external view returns (uint80);

}
// File: @manifoldxyz/creator-core-solidity/contracts/extensions/ICreatorExtensionTokenURI.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Implement this if you want your extension to have overloadable URI's
 */
interface ICreatorExtensionTokenURI is IERC165 {

    /**
     * Get the uri for a given creator/tokenId
     */
    function tokenURI(address creator, uint256 tokenId) external view returns (string memory);
}

// File: @manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./IAdminControl.sol";

abstract contract AdminControl is Ownable, IAdminControl, ERC165 {
    using EnumerableSet for EnumerableSet.AddressSet;

    // Track registered admins
    EnumerableSet.AddressSet private _admins;

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

    /**
     * @dev Only allows approved admins to call the specified function
     */
    modifier adminRequired() {
        require(owner() == msg.sender || _admins.contains(msg.sender), "AdminControl: Must be owner or admin");
        _;
    }   

    /**
     * @dev See {IAdminControl-getAdmins}.
     */
    function getAdmins() external view override returns (address[] memory admins) {
        admins = new address[](_admins.length());
        for (uint i = 0; i < _admins.length(); i++) {
            admins[i] = _admins.at(i);
        }
        return admins;
    }

    /**
     * @dev See {IAdminControl-approveAdmin}.
     */
    function approveAdmin(address admin) external override onlyOwner {
        if (!_admins.contains(admin)) {
            emit AdminApproved(admin, msg.sender);
            _admins.add(admin);
        }
    }

    /**
     * @dev See {IAdminControl-revokeAdmin}.
     */
    function revokeAdmin(address admin) external override onlyOwner {
        if (_admins.contains(admin)) {
            emit AdminRevoked(admin, msg.sender);
            _admins.remove(admin);
        }
    }

    /**
     * @dev See {IAdminControl-isAdmin}.
     */
    function isAdmin(address admin) public override view returns (bool) {
        return (owner() == admin || _admins.contains(admin));
    }

}
// File: @manifoldxyz/libraries-solidity/contracts/access/IAdminControl.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Interface for admin control
 */
interface IAdminControl is IERC165 {

    event AdminApproved(address indexed account, address indexed sender);
    event AdminRevoked(address indexed account, address indexed sender);

    /**
     * @dev gets address of all admins
     */
    function getAdmins() external view returns (address[] memory);

    /**
     * @dev add an admin.  Can only be called by contract owner.
     */
    function approveAdmin(address admin) external;

    /**
     * @dev remove an admin.  Can only be called by contract owner.
     */
    function revokeAdmin(address admin) external;

    /**
     * @dev checks whether or not given address is an admin
     * Returns True if they are
     */
    function isAdmin(address admin) external view returns (bool);

}
// File: @openzeppelin/contracts/access/Ownable.sol



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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @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 amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` 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 amount
    ) external returns (bool);
}

// File: @openzeppelin/contracts/utils/Context.sol



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

pragma solidity ^0.8.0;

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

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

// File: @openzeppelin/contracts/utils/cryptography/MerkleProof.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the merkle tree could be reinterpreted as a leaf value.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     *
     * _Available since v4.7._
     */
    function verifyCalldata(
        bytes32[] calldata proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     *
     * _Available since v4.7._
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be proved to be a part of a Merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * _Available since v4.7._
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * _Available since v4.7._
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and the sibling nodes in `proof`,
     * consuming from one or the other at each step according to the instructions given by
     * `proofFlags`.
     *
     * _Available since v4.7._
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            return hashes[totalHashes - 1];
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}
     *
     * _Available since v4.7._
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            return hashes[totalHashes - 1];
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// File: @openzeppelin/contracts/utils/introspection/ERC165.sol



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

pragma solidity ^0.8.0;

import "./IERC165.sol";

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

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



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

pragma solidity ^0.8.0;

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

// File: @openzeppelin/contracts/utils/Strings.sol



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

pragma solidity ^0.8.0;

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

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

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

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

// File: @openzeppelin/contracts/utils/structs/EnumerableSet.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/structs/EnumerableSet.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

            return true;
        } else {
            return false;
        }
    }

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

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

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

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

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

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

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

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

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

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

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

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }
}

// File: contracts/libraries/delegation-registry/IDelegationRegistry.sol



// SPDX-License-Identifier: CC0-1.0
pragma solidity ^0.8.9;

/**
 * @title An immutable registry contract to be deployed as a standalone primitive
 * @dev See EIP-5639, new project launches can read previous cold wallet -> hot wallet delegations
 * from here and integrate those permissions into their flow
 */
interface IDelegationRegistry {
    /// @notice Delegation type
    enum DelegationType {
        NONE,
        ALL,
        CONTRACT,
        TOKEN
    }

    /// @notice Info about a single delegation, used for onchain enumeration
    struct DelegationInfo {
        DelegationType type_;
        address vault;
        address delegate;
        address contract_;
        uint256 tokenId;
    }

    /// @notice Info about a single contract-level delegation
    struct ContractDelegation {
        address contract_;
        address delegate;
    }

    /// @notice Info about a single token-level delegation
    struct TokenDelegation {
        address contract_;
        uint256 tokenId;
        address delegate;
    }

    /// @notice Emitted when a user delegates their entire wallet
    event DelegateForAll(address vault, address delegate, bool value);

    /// @notice Emitted when a user delegates a specific contract
    event DelegateForContract(address vault, address delegate, address contract_, bool value);

    /// @notice Emitted when a user delegates a specific token
    event DelegateForToken(address vault, address delegate, address contract_, uint256 tokenId, bool value);

    /// @notice Emitted when a user revokes all delegations
    event RevokeAllDelegates(address vault);

    /// @notice Emitted when a user revoes all delegations for a given delegate
    event RevokeDelegate(address vault, address delegate);

    /**
     * -----------  WRITE -----------
     */

    /**
     * @notice Allow the delegate to act on your behalf for all contracts
     * @param delegate The hotwallet to act on your behalf
     * @param value Whether to enable or disable delegation for this address, true for setting and false for revoking
     */
    function delegateForAll(address delegate, bool value) external;

    /**
     * @notice Allow the delegate to act on your behalf for a specific contract
     * @param delegate The hotwallet to act on your behalf
     * @param contract_ The address for the contract you're delegating
     * @param value Whether to enable or disable delegation for this address, true for setting and false for revoking
     */
    function delegateForContract(address delegate, address contract_, bool value) external;

    /**
     * @notice Allow the delegate to act on your behalf for a specific token
     * @param delegate The hotwallet to act on your behalf
     * @param contract_ The address for the contract you're delegating
     * @param tokenId The token id for the token you're delegating
     * @param value Whether to enable or disable delegation for this address, true for setting and false for revoking
     */
    function delegateForToken(address delegate, address contract_, uint256 tokenId, bool value) external;

    /**
     * @notice Revoke all delegates
     */
    function revokeAllDelegates() external;

    /**
     * @notice Revoke a specific delegate for all their permissions
     * @param delegate The hotwallet to revoke
     */
    function revokeDelegate(address delegate) external;

    /**
     * @notice Remove yourself as a delegate for a specific vault
     * @param vault The vault which delegated to the msg.sender, and should be removed
     */
    function revokeSelf(address vault) external;

    /**
     * -----------  READ -----------
     */

    /**
     * @notice Returns all active delegations a given delegate is able to claim on behalf of
     * @param delegate The delegate that you would like to retrieve delegations for
     * @return info Array of DelegationInfo structs
     */
    function getDelegationsByDelegate(address delegate) external view returns (DelegationInfo[] memory);

    /**
     * @notice Returns an array of wallet-level delegates for a given vault
     * @param vault The cold wallet who issued the delegation
     * @return addresses Array of wallet-level delegates for a given vault
     */
    function getDelegatesForAll(address vault) external view returns (address[] memory);

    /**
     * @notice Returns an array of contract-level delegates for a given vault and contract
     * @param vault The cold wallet who issued the delegation
     * @param contract_ The address for the contract you're delegating
     * @return addresses Array of contract-level delegates for a given vault and contract
     */
    function getDelegatesForContract(address vault, address contract_) external view returns (address[] memory);

    /**
     * @notice Returns an array of contract-level delegates for a given vault's token
     * @param vault The cold wallet who issued the delegation
     * @param contract_ The address for the contract holding the token
     * @param tokenId The token id for the token you're delegating
     * @return addresses Array of contract-level delegates for a given vault's token
     */
    function getDelegatesForToken(address vault, address contract_, uint256 tokenId)
        external
        view
        returns (address[] memory);

    /**
     * @notice Returns all contract-level delegations for a given vault
     * @param vault The cold wallet who issued the delegations
     * @return delegations Array of ContractDelegation structs
     */
    function getContractLevelDelegations(address vault)
        external
        view
        returns (ContractDelegation[] memory delegations);

    /**
     * @notice Returns all token-level delegations for a given vault
     * @param vault The cold wallet who issued the delegations
     * @return delegations Array of TokenDelegation structs
     */
    function getTokenLevelDelegations(address vault) external view returns (TokenDelegation[] memory delegations);

    /**
     * @notice Returns true if the address is delegated to act on the entire vault
     * @param delegate The hotwallet to act on your behalf
     * @param vault The cold wallet who issued the delegation
     */
    function checkDelegateForAll(address delegate, address vault) external view returns (bool);

    /**
     * @notice Returns true if the address is delegated to act on your behalf for a token contract or an entire vault
     * @param delegate The hotwallet to act on your behalf
     * @param contract_ The address for the contract you're delegating
     * @param vault The cold wallet who issued the delegation
     */
    function checkDelegateForContract(address delegate, address vault, address contract_)
        external
        view
        returns (bool);

    /**
     * @notice Returns true if the address is delegated to act on your behalf for a specific token, the token's contract or an entire vault
     * @param delegate The hotwallet to act on your behalf
     * @param contract_ The address for the contract you're delegating
     * @param tokenId The token id for the token you're delegating
     * @param vault The cold wallet who issued the delegation
     */
    function checkDelegateForToken(address delegate, address vault, address contract_, uint256 tokenId)
        external
        view
        returns (bool);
}

// File: contracts/libraries/IERC721CreatorCoreVersion.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IERC721CreatorCoreVersion {
    function VERSION() external view returns(uint256);
}

// File: contracts/libraries/manifold-membership/IManifoldMembership.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

/**
 * Manifold Membership interface
 */
interface IManifoldMembership {
   function isActiveMember(address sender) external view returns (bool);
}
// File: contracts/manifold/lazyclaim/ERC721LazyPayableClaim.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@manifoldxyz/creator-core-solidity/contracts/core/IERC721CreatorCore.sol";
import "@manifoldxyz/creator-core-solidity/contracts/extensions/ICreatorExtensionTokenURI.sol";

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

import "./LazyPayableClaim.sol";
import "./IERC721LazyPayableClaim.sol";
import "../../libraries/IERC721CreatorCoreVersion.sol";

/**
 * @title Lazy Payable Claim
 * @author manifold.xyz
 * @notice Lazy payable claim with optional whitelist ERC721 tokens
 */
contract ERC721LazyPayableClaim is IERC165, IERC721LazyPayableClaim, ICreatorExtensionTokenURI, LazyPayableClaim {
    using Strings for uint256;

    // stores mapping from contractAddress/instanceId to the claim it represents
    // { contractAddress => { instanceId => Claim } }
    mapping(address => mapping(uint256 => Claim)) private _claims;

    struct TokenClaim {
        uint224 instanceId;
        uint32 mintOrder;
    }

    // NOTE: Only used for creatorContract versions < 3
    // stores which tokenId corresponds to which instanceId, used to generate token uris
    // { contractAddress => { tokenId => TokenClaim } }
    mapping(address => mapping(uint256 => TokenClaim)) private _tokenClaims;

    function supportsInterface(bytes4 interfaceId) public view virtual override(AdminControl, IERC165) returns (bool) {
        return interfaceId == type(IERC721LazyPayableClaim).interfaceId ||
            interfaceId == type(ILazyPayableClaim).interfaceId ||
            interfaceId == type(ICreatorExtensionTokenURI).interfaceId ||
            interfaceId == type(IAdminControl).interfaceId ||
            interfaceId == type(IERC165).interfaceId;
    }

    constructor(address delegationRegistry) LazyPayableClaim(delegationRegistry) {}

    /**
     * See {IERC721LazyClaim-initializeClaim}.
     */
    function initializeClaim(
        address creatorContractAddress,
        uint256 instanceId,
        ClaimParameters calldata claimParameters
    ) external override creatorAdminRequired(creatorContractAddress) {
        // Max uint56 for instanceId
        require(instanceId > 0 && instanceId <= MAX_UINT_56, "Invalid instanceId");
        // Revert if claim at instanceId already exists
        require(_claims[creatorContractAddress][instanceId].storageProtocol == StorageProtocol.INVALID, "Claim already initialized");

        // Sanity checks
        require(claimParameters.storageProtocol != StorageProtocol.INVALID, "Cannot initialize with invalid storage protocol");
        require(claimParameters.endDate == 0 || claimParameters.startDate < claimParameters.endDate, "Cannot have startDate greater than or equal to endDate");
        require(claimParameters.merkleRoot == "" || claimParameters.walletMax == 0, "Cannot provide both walletMax and merkleRoot");

        uint8 creatorContractVersion;
        try IERC721CreatorCoreVersion(creatorContractAddress).VERSION() returns(uint256 version) {
            require(version <= 255, "Unsupported contract version");
            creatorContractVersion = uint8(version);
        } catch {}

        // Create the claim
        _claims[creatorContractAddress][instanceId] = Claim({
            total: 0,
            totalMax: claimParameters.totalMax,
            walletMax: claimParameters.walletMax,
            startDate: claimParameters.startDate,
            endDate: claimParameters.endDate,
            storageProtocol: claimParameters.storageProtocol,
            contractVersion: creatorContractVersion,
            identical: claimParameters.identical,
            merkleRoot: claimParameters.merkleRoot,
            location: claimParameters.location,
            cost: claimParameters.cost,
            paymentReceiver: claimParameters.paymentReceiver,
            erc20: claimParameters.erc20
        });

        emit ClaimInitialized(creatorContractAddress, instanceId, msg.sender);
    }

    /**
     * See {IERC721LazyClaim-udpateClaim}.
     */
    function updateClaim(
        address creatorContractAddress,
        uint256 instanceId,
        ClaimParameters memory claimParameters
    ) external override creatorAdminRequired(creatorContractAddress) {
        // Sanity checks
        Claim memory claim = _claims[creatorContractAddress][instanceId];
        require(claim.storageProtocol != StorageProtocol.INVALID, "Claim not initialized");
        require(claimParameters.storageProtocol != StorageProtocol.INVALID, "Cannot set invalid storage protocol");
        require(claimParameters.endDate == 0 || claimParameters.startDate < claimParameters.endDate, "Cannot have startDate greater than or equal to endDate");
        require(claimParameters.erc20 == claim.erc20, "Cannot change payment token");
        if (claimParameters.totalMax != 0 && claim.total > claimParameters.totalMax) {
            claimParameters.totalMax = claim.total;
        }

        // Overwrite the existing claim
        _claims[creatorContractAddress][instanceId] = Claim({
            total: claim.total,
            totalMax: claimParameters.totalMax,
            walletMax: claimParameters.walletMax,
            startDate: claimParameters.startDate,
            endDate: claimParameters.endDate,
            storageProtocol: claimParameters.storageProtocol,
            contractVersion: claim.contractVersion,
            identical: claimParameters.identical,
            merkleRoot: claimParameters.merkleRoot,
            location: claimParameters.location,
            cost: claimParameters.cost,
            paymentReceiver: claimParameters.paymentReceiver,
            erc20: claim.erc20
        });
        emit ClaimUpdated(creatorContractAddress, instanceId);
    }

    /**
     * See {IERC721LazyClaim-updateTokenURIParams}.
     */
    function updateTokenURIParams(
        address creatorContractAddress, uint256 instanceId,
        StorageProtocol storageProtocol,
        bool identical,
        string calldata location
    ) external override creatorAdminRequired(creatorContractAddress) {
        Claim storage claim = _claims[creatorContractAddress][instanceId];
        require(_claims[creatorContractAddress][instanceId].storageProtocol != StorageProtocol.INVALID, "Claim not initialized");
        require(storageProtocol != StorageProtocol.INVALID, "Cannot set invalid storage protocol");

        claim.storageProtocol = storageProtocol;
        claim.location = location;
        claim.identical = identical;
        emit ClaimUpdated(creatorContractAddress, instanceId);
    }

    /**
     * See {IERC1155LazyClaim-extendTokenURI}.
     */
    function extendTokenURI(
        address creatorContractAddress, uint256 instanceId,
        string calldata locationChunk
    ) external override creatorAdminRequired(creatorContractAddress) {
        Claim storage claim = _claims[creatorContractAddress][instanceId];
        require(claim.storageProtocol == StorageProtocol.NONE && claim.identical, "Invalid storage protocol");
        claim.location = string(abi.encodePacked(claim.location, locationChunk));
        emit ClaimUpdated(creatorContractAddress, instanceId);
    }

    /**
     * See {ILazyPayableClaim-getClaim}.
     */
    function getClaim(address creatorContractAddress, uint256 instanceId) public override view returns(Claim memory) {
        return _getClaim(creatorContractAddress, instanceId);
    }

    /**
     * See {ILazyPayableClaim-getClaimForToken}.
     */
    function getClaimForToken(address creatorContractAddress, uint256 tokenId) external override view returns(uint256 instanceId, Claim memory claim) {
        TokenClaim memory tokenClaim = _tokenClaims[creatorContractAddress][tokenId];
        if (tokenClaim.instanceId == 0) {
            // No claim, try to retrieve from tokenData
            uint80 tokenData = IERC721CreatorCore(creatorContractAddress).tokenData(tokenId);
            instanceId = uint56(tokenData >> 24);
        } else {
            instanceId = tokenClaim.instanceId;
        }
        claim = _getClaim(creatorContractAddress, instanceId);
    }

    function _getClaim(address creatorContractAddress, uint256 instanceId) private view returns(Claim storage claim) {
        claim = _claims[creatorContractAddress][instanceId];
        require(claim.storageProtocol != StorageProtocol.INVALID, "Claim not initialized");
    }

    /**
     * See {ILazyPayableClaim-checkMintIndex}.
     */
    function checkMintIndex(address creatorContractAddress, uint256 instanceId, uint32 mintIndex) external override view returns(bool) {
        Claim memory claim = getClaim(creatorContractAddress, instanceId);
        return _checkMintIndex(creatorContractAddress, instanceId, claim.merkleRoot, mintIndex);
    }

    /**
     * See {ILazyPayableClaim-checkMintIndices}.
     */
    function checkMintIndices(address creatorContractAddress, uint256 instanceId, uint32[] calldata mintIndices) external override view returns(bool[] memory minted) {
        Claim memory claim = getClaim(creatorContractAddress, instanceId);
        uint256 mintIndicesLength = mintIndices.length;
        minted = new bool[](mintIndices.length);
        for (uint256 i; i < mintIndicesLength;) {
            minted[i] = _checkMintIndex(creatorContractAddress, instanceId, claim.merkleRoot, mintIndices[i]);
            unchecked{ ++i; }
        }
    }

    /**
     * See {ILazyPayableClaim-getTotalMints}.
     */
    function getTotalMints(address minter, address creatorContractAddress, uint256 instanceId) external override view returns(uint32) {
        Claim memory claim = getClaim(creatorContractAddress, instanceId);
        return _getTotalMints(claim.walletMax, minter, creatorContractAddress, instanceId);
    }

    /**
     * See {ILazyPayableClaim-mint}.
     */
    function mint(address creatorContractAddress, uint256 instanceId, uint32 mintIndex, bytes32[] calldata merkleProof, address mintFor) external payable override {
        Claim storage claim = _getClaim(creatorContractAddress, instanceId);

        // Check totalMax
        require((++claim.total <= claim.totalMax || claim.totalMax == 0) && claim.total <= MAX_UINT_24, "Maximum tokens already minted for this claim");

        // Validate mint
        _validateMint(creatorContractAddress, instanceId, claim.startDate, claim.endDate, claim.walletMax, claim.merkleRoot, mintIndex, merkleProof, mintFor);

        // Transfer funds
        _transferFunds(claim.erc20, claim.cost, claim.paymentReceiver, 1, claim.merkleRoot != "", true);

        // Do mint
        if (claim.contractVersion >= 3) {
            uint80 tokenData = uint56(instanceId) << 24 | uint24(claim.total);
            IERC721CreatorCore(creatorContractAddress).mintExtension(msg.sender, tokenData);
        } else {
            uint256 newTokenId = IERC721CreatorCore(creatorContractAddress).mintExtension(msg.sender);
            // Insert the new tokenId into _tokenClaims for the current claim address & instanceId
            _tokenClaims[creatorContractAddress][newTokenId] = TokenClaim(uint224(instanceId), claim.total);
        }

        emit ClaimMint(creatorContractAddress, instanceId);
    }

    /**
     * See {ILazyPayableClaim-mintBatch}.
     */
    function mintBatch(address creatorContractAddress, uint256 instanceId, uint16 mintCount, uint32[] calldata mintIndices, bytes32[][] calldata merkleProofs, address mintFor) external payable override {
        Claim storage claim = _getClaim(creatorContractAddress, instanceId);

        // Check totalMax
        claim.total += mintCount;
        require((claim.totalMax == 0 || claim.total <= claim.totalMax) && claim.total <= MAX_UINT_24, "Too many requested for this claim");

        // Validate mint
        _validateMint(creatorContractAddress, instanceId, claim.startDate, claim.endDate, claim.walletMax, claim.merkleRoot, mintCount, mintIndices, merkleProofs, mintFor);
        uint256 newMintIndex = claim.total - mintCount + 1;

        // Transfer funds
        _transferFunds(claim.erc20, claim.cost, claim.paymentReceiver, mintCount, claim.merkleRoot != "", true);

        if (claim.contractVersion >= 3) {
            uint80[] memory tokenData = new uint80[](mintCount);
            for (uint256 i; i < mintCount;) {
                tokenData[i] = uint56(instanceId) << 24 | uint24(newMintIndex+i);
                unchecked { ++i; }
            }
            IERC721CreatorCore(creatorContractAddress).mintExtensionBatch(msg.sender, tokenData);
        } else {
            uint256[] memory newTokenIds = IERC721CreatorCore(creatorContractAddress).mintExtensionBatch(msg.sender, mintCount);
            for (uint256 i; i < mintCount;) {
                _tokenClaims[creatorContractAddress][newTokenIds[i]] = TokenClaim(uint224(instanceId), uint32(newMintIndex+i));
                unchecked { ++i; }
            }
        }

        emit ClaimMintBatch(creatorContractAddress, instanceId, mintCount);
    }

    /**
     * See {ILazyPayableClaim-mintProxy}.
     */
    function mintProxy(address creatorContractAddress, uint256 instanceId, uint16 mintCount, uint32[] calldata mintIndices, bytes32[][] calldata merkleProofs, address mintFor) external payable override {
        Claim storage claim = _getClaim(creatorContractAddress, instanceId);

        // Check totalMax
        claim.total += mintCount;
        require((claim.totalMax == 0 || claim.total <= claim.totalMax) && claim.total <= MAX_UINT_24, "Too many requested for this claim");

        // Validate mint
        _validateMintProxy(creatorContractAddress, instanceId, claim.startDate, claim.endDate, claim.walletMax, claim.merkleRoot, mintCount, mintIndices, merkleProofs, mintFor);
        uint256 newMintIndex = claim.total - mintCount + 1;

        // Transfer funds
        _transferFunds(claim.erc20, claim.cost, claim.paymentReceiver, mintCount, claim.merkleRoot != "", false);

        if (claim.contractVersion >= 3) {
            uint80[] memory tokenData = new uint80[](mintCount);
            for (uint256 i; i < mintCount;) {
                tokenData[i] = uint56(instanceId) << 24 | uint24(newMintIndex+i);
                unchecked { ++i; }
            }
            IERC721CreatorCore(creatorContractAddress).mintExtensionBatch(mintFor, tokenData);
        } else {
            uint256[] memory newTokenIds = IERC721CreatorCore(creatorContractAddress).mintExtensionBatch(mintFor, mintCount);
            for (uint256 i; i < mintCount;) {
                _tokenClaims[creatorContractAddress][newTokenIds[i]] = TokenClaim(uint224(instanceId), uint32(newMintIndex+i));
                unchecked { ++i; }
            }
        }

        emit ClaimMintProxy(creatorContractAddress, instanceId, mintCount, msg.sender, mintFor);
    }

    /**
     * See {IERC721LazyClaim-airdrop}.
     */
    function airdrop(address creatorContractAddress, uint256 instanceId, address[] calldata recipients,
            uint16[] calldata amounts) external override creatorAdminRequired(creatorContractAddress) {
        require(recipients.length == amounts.length, "Unequal number of recipients and amounts provided");

        // Fetch the claim, create newMintIndex to keep track of token ids created by the airdrop
        Claim storage claim = _claims[creatorContractAddress][instanceId];
        uint256 newMintIndex = claim.total+1;

        if (claim.contractVersion >= 3) {
            for (uint256 i; i < recipients.length;) {
                uint16 mintCount = amounts[i];
                uint80[] memory tokenDatas = new uint80[](mintCount);
                for (uint256 j; j < mintCount;) {
                    tokenDatas[j] = uint56(instanceId) << 24 | uint24(newMintIndex+i);
                    unchecked { ++j; }
                }
                // Airdrop the tokens
                IERC721CreatorCore(creatorContractAddress).mintExtensionBatch(recipients[i], tokenDatas);

                // Increment newMintIndex for the next airdrop
                unchecked{ newMintIndex += mintCount; }

                unchecked{ ++i; }
            }
        } else {
            for (uint256 i; i < recipients.length;) {
                // Airdrop the tokens
                uint256[] memory newTokenIds = IERC721CreatorCore(creatorContractAddress).mintExtensionBatch(recipients[i], amounts[i]);

                // Register the tokenClaims, so that tokenURI will work for airdropped tokens
                for (uint256 j; j < newTokenIds.length;) {
                    _tokenClaims[creatorContractAddress][newTokenIds[j]] = TokenClaim(uint224(instanceId), uint32(newMintIndex+j));
                    unchecked { ++j; }
                }

                // Increment newMintIndex for the next airdrop
                unchecked{ newMintIndex += newTokenIds.length; }

                unchecked{ ++i; }
            }
        }
        
        require(newMintIndex - claim.total - 1 <= MAX_UINT_24, "Too many requested");
        claim.total += uint32(newMintIndex - claim.total - 1);
        if (claim.totalMax != 0 && claim.total > claim.totalMax) {
            claim.totalMax = claim.total;
        }
    }

    /**
     * See {ICreatorExtensionTokenURI-tokenURI}.
     */
    function tokenURI(address creatorContractAddress, uint256 tokenId) external override view returns(string memory uri) {
        TokenClaim memory tokenClaim = _tokenClaims[creatorContractAddress][tokenId];
        Claim memory claim;
        uint256 mintOrder;
        if (tokenClaim.instanceId != 0) {
            claim = _claims[creatorContractAddress][tokenClaim.instanceId];
            mintOrder = tokenClaim.mintOrder;
        } else {
            // No claim, try to retrieve from tokenData
            uint80 tokenData = IERC721CreatorCore(creatorContractAddress).tokenData(tokenId);
            uint56 instanceId = uint56(tokenData >> 24);
            require(instanceId != 0, "Token does not exist");
            claim = _claims[creatorContractAddress][instanceId];
            mintOrder = uint24(tokenData & MAX_UINT_24);
        }

        string memory prefix = "";
        if (claim.storageProtocol == StorageProtocol.ARWEAVE) {
            prefix = ARWEAVE_PREFIX;
        } else if (claim.storageProtocol == StorageProtocol.IPFS) {
            prefix = IPFS_PREFIX;
        }
        uri = string(abi.encodePacked(prefix, claim.location));

        // Depending on params, we may want to append a suffix to location
        if (!claim.identical) {
            uri = string(abi.encodePacked(uri, "/", uint256(mintOrder).toString()));
        }
    }
}

// File: contracts/manifold/lazyclaim/IERC721LazyPayableClaim.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "./ILazyPayableClaim.sol";

/**
 * Lazy Payable Claim interface
 */
interface IERC721LazyPayableClaim is ILazyPayableClaim {
    struct ClaimParameters {
        uint32 totalMax;
        uint32 walletMax;
        uint48 startDate;
        uint48 endDate;
        StorageProtocol storageProtocol;
        bool identical;
        bytes32 merkleRoot;
        string location;
        uint256 cost;
        address payable paymentReceiver;
        address erc20;
    }

    struct Claim {
        uint32 total;
        uint32 totalMax;
        uint32 walletMax;
        uint48 startDate;
        uint48 endDate;
        StorageProtocol storageProtocol;
        uint8 contractVersion;
        bool identical;
        bytes32 merkleRoot;
        string location;
        uint256 cost;
        address payable paymentReceiver;
        address erc20;
    }

    /**
     * @notice initialize a new claim, emit initialize event
     * @param creatorContractAddress    the creator contract the claim will mint tokens for
     * @param instanceId                the claim instanceId for the creator contract
     * @param claimParameters           the parameters which will affect the minting behavior of the claim
     */
    function initializeClaim(address creatorContractAddress, uint256 instanceId, ClaimParameters calldata claimParameters) external;

    /**
     * @notice update an existing claim at instanceId
     * @param creatorContractAddress    the creator contract corresponding to the claim
     * @param instanceId                the claim instanceId for the creator contract
     * @param claimParameters           the parameters which will affect the minting behavior of the claim
     */
    function updateClaim(address creatorContractAddress, uint256 instanceId, ClaimParameters calldata claimParameters) external;

    /**
     * @notice update tokenURI parameters for an existing claim at instanceId
     * @param creatorContractAddress    the creator contract corresponding to the claim
     * @param instanceId                the claim instanceId for the creator contract
     * @param storageProtocol           the new storage protocol
     * @param identical                 the new value of identical
     * @param location                  the new location
     */
    function updateTokenURIParams(address creatorContractAddress, uint256 instanceId, StorageProtocol storageProtocol, bool identical, string calldata location) external;

    /**
     * @notice extend tokenURI parameters for an existing claim at instanceId.  Must have NONE StorageProtocol
     * @param creatorContractAddress    the creator contract corresponding to the claim
     * @param instanceId                the claim instanceId for the creator contract
     * @param locationChunk             the additional location chunk
     */
    function extendTokenURI(address creatorContractAddress, uint256 instanceId, string calldata locationChunk) external;

    /**
     * @notice get a claim corresponding to a creator contract and instanceId
     * @param creatorContractAddress    the address of the creator contract
     * @param instanceId                the claim instanceId for the creator contract
     * @return                          the claim object
     */
    function getClaim(address creatorContractAddress, uint256 instanceId) external view returns(Claim memory);

    /**
     * @notice get a claim corresponding to a token
     * @param creatorContractAddress    the address of the creator contract
     * @param tokenId                   the tokenId of the claim
     * @return                          the claim instanceId and claim object
     */
    function getClaimForToken(address creatorContractAddress, uint256 tokenId) external view returns(uint256, Claim memory);

    /**
     * @notice allow admin to airdrop arbitrary tokens 
     * @param creatorContractAddress    the creator contract the claim will mint tokens for
     * @param instanceId                the claim instanceId for the creator contract
     * @param recipients                addresses to airdrop to
     * @param amounts                   number of tokens to airdrop to each address in addresses
     */
    function airdrop(address creatorContractAddress, uint256 instanceId, address[] calldata recipients, uint16[] calldata amounts) external;
}

// File: contracts/manifold/lazyclaim/ILazyPayableClaim.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

/**
 * Lazy Payable Claim interface
 */
interface ILazyPayableClaim {
    enum StorageProtocol { INVALID, NONE, ARWEAVE, IPFS }
    
    event ClaimInitialized(address indexed creatorContract, uint256 indexed instanceId, address initializer);
    event ClaimUpdated(address indexed creatorContract, uint256 indexed instanceId);
    event ClaimMint(address indexed creatorContract, uint256 indexed instanceId);
    event ClaimMintBatch(address indexed creatorContract, uint256 indexed instanceId, uint16 mintCount);
    event ClaimMintProxy(address indexed creatorContract, uint256 indexed instanceId, uint16 mintCount, address proxy, address mintFor);

    /**
     * @notice Withdraw funds
     */
    function withdraw(address payable receiver, uint256 amount) external;

    /**
     * @notice Set the Manifold Membership address
     */
    function setMembershipAddress(address membershipAddress) external;

    /**
     * @notice check if a mint index has been consumed or not (only for merkle claims)
     *
     * @param creatorContractAddress    the address of the creator contract for the claim
     * @param instanceId                the claim instanceId for the creator contract
     * @param mintIndex                 the mint claim instance
     * @return                          whether or not the mint index was consumed
     */
    function checkMintIndex(address creatorContractAddress, uint256 instanceId, uint32 mintIndex) external view returns(bool);

    /**
     * @notice check if multiple mint indices has been consumed or not (only for merkle claims)
     *
     * @param creatorContractAddress    the address of the creator contract for the claim
     * @param instanceId                the claim instanceId for the creator contract
     * @param mintIndices               the mint claim instance
     * @return                          whether or not the mint index was consumed
     */
    function checkMintIndices(address creatorContractAddress, uint256 instanceId, uint32[] calldata mintIndices) external view returns(bool[] memory);

    /**
     * @notice get mints made for a wallet (only for non-merkle claims with walletMax)
     *
     * @param minter                    the address of the minting address
     * @param creatorContractAddress    the address of the creator contract for the claim
     * @param instanceId                the claim instance for the creator contract
     * @return                          how many mints the minter has made
     */
    function getTotalMints(address minter, address creatorContractAddress, uint256 instanceId) external view returns(uint32);

    /**
     * @notice allow a wallet to lazily claim a token according to parameters
     * @param creatorContractAddress    the creator contract address
     * @param instanceId                the claim instanceId for the creator contract
     * @param mintIndex                 the mint index (only needed for merkle claims)
     * @param merkleProof               if the claim has a merkleRoot, verifying merkleProof ensures that address + minterValue was used to construct it  (only needed for merkle claims)
     * @param mintFor                   mintFor must be the msg.sender or a delegate wallet address (in the case of merkle based mints)
     */
    function mint(address creatorContractAddress, uint256 instanceId, uint32 mintIndex, bytes32[] calldata merkleProof, address mintFor) external payable;

    /**
     * @notice allow a wallet to lazily claim a token according to parameters
     * @param creatorContractAddress    the creator contract address
     * @param instanceId                the claim instanceId for the creator contract
     * @param mintCount                 the number of claims to mint
     * @param mintIndices               the mint index (only needed for merkle claims)
     * @param merkleProofs              if the claim has a merkleRoot, verifying merkleProof ensures that address + minterValue was used to construct it  (only needed for merkle claims)
     * @param mintFor                   mintFor must be the msg.sender or a delegate wallet address (in the case of merkle based mints)
     */
    function mintBatch(address creatorContractAddress, uint256 instanceId, uint16 mintCount, uint32[] calldata mintIndices, bytes32[][] calldata merkleProofs, address mintFor) external payable;

    /**
     * @notice allow a proxy to mint a token for another address
     * @param creatorContractAddress    the creator contract address
     * @param instanceId                the claim instanceId for the creator contract
     * @param mintCount                 the number of claims to mint
     * @param mintIndices               the mint index (only needed for merkle claims)
     * @param merkleProofs              if the claim has a merkleRoot, verifying merkleProof ensures that address + minterValue was used to construct it  (only needed for merkle claims)
     * @param mintFor                   the address to mint for
     */
    function mintProxy(address creatorContractAddress, uint256 instanceId, uint16 mintCount, uint32[] calldata mintIndices, bytes32[][] calldata merkleProofs, address mintFor) external payable;

}
// File: contracts/manifold/lazyclaim/LazyPayableClaim.sol



// SPDX-License-Identifier: MIT
// solhint-disable reason-string
pragma solidity ^0.8.0;

import "@manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "../../libraries/delegation-registry/IDelegationRegistry.sol";
import "../../libraries/manifold-membership/IManifoldMembership.sol";

import "./ILazyPayableClaim.sol";

/**
 * @title Lazy Payable Claim
 * @author manifold.xyz
 * @notice Lazy payable claim with optional whitelist ERC721 tokens
 */
abstract contract LazyPayableClaim is ILazyPayableClaim, AdminControl {
    using EnumerableSet for EnumerableSet.AddressSet;

    string internal constant ARWEAVE_PREFIX = "https://arweave.net/";
    string internal constant IPFS_PREFIX = "ipfs://";

    uint256 internal constant MINT_INDEX_BITMASK = 0xFF;
    // solhint-disable-next-line
    address public immutable DELEGATION_REGISTRY;

    uint256 public constant MINT_FEE = 500000000000000;
    uint256 public constant MINT_FEE_MERKLE = 690000000000000;
    address public MEMBERSHIP_ADDRESS;

    uint256 internal constant MAX_UINT_24 = 0xffffff;
    uint256 internal constant MAX_UINT_32 = 0xffffffff;
    uint256 internal constant MAX_UINT_56 = 0xffffffffffffff;
    uint256 internal constant MAX_UINT_256 = 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;
    address private constant ADDRESS_ZERO = 0x0000000000000000000000000000000000000000;

    // ONLY USED FOR NON-MERKLE MINTS: stores the number of tokens minted per wallet per claim, in order to limit maximum
    // { contractAddress => { instanceId => { walletAddress => walletMints } } }
    mapping(address => mapping(uint256 => mapping(address => uint256))) internal _mintsPerWallet;

    // ONLY USED FOR MERKLE MINTS: stores mapping from claim to indices minted
    // { contractAddress => {instanceId => { instanceIdOffset => index } } }
    mapping(address => mapping(uint256 => mapping(uint256 => uint256))) internal _claimMintIndices;

    EnumerableSet.AddressSet private _proxyAddresses;

    /**
     * @notice This extension is shared, not single-creator. So we must ensure
     * that a claim's initializer is an admin on the creator contract
     * @param creatorContractAddress    the address of the creator contract to check the admin against
     */
    modifier creatorAdminRequired(address creatorContractAddress) {
        AdminControl creatorCoreContract = AdminControl(creatorContractAddress);
        require(creatorCoreContract.isAdmin(msg.sender), "Wallet is not an administrator for contract");
        _;
    }

    constructor(address delegationRegistry) {
        DELEGATION_REGISTRY = delegationRegistry;
    }

    /**
     * See {ILazyPayableClaim-withdraw}.
     */
    function withdraw(address payable receiver, uint256 amount) external override adminRequired {
        (bool sent, ) = receiver.call{value: amount}("");
        require(sent, "Failed to transfer to receiver");
    }

    /**
     * See {ILazyPayableClaim-setMembershipAddress}.
     */
    function setMembershipAddress(address membershipAddress) external override adminRequired {
        MEMBERSHIP_ADDRESS = membershipAddress;
    }

    function _transferFunds(address erc20, uint256 cost, address payable recipient, uint16 mintCount, bool merkle, bool allowMembership) internal {
        uint256 payableCost;
        if (erc20 != ADDRESS_ZERO) {
            require(IERC20(erc20).transferFrom(msg.sender, recipient, cost*mintCount), "Insufficient funds");
        } else {
            payableCost = cost;
        }

        /**
         * Add mint fee if:
         * 1. Not allowing memberships OR
         * 2. No membership address set OR
         * 3. Not an active member
        */
        if (MEMBERSHIP_ADDRESS == ADDRESS_ZERO || !allowMembership || !IManifoldMembership(MEMBERSHIP_ADDRESS).isActiveMember(msg.sender)) {
            payableCost += merkle ? MINT_FEE_MERKLE : MINT_FEE; 
        }
        if (mintCount > 1) {
            payableCost *= mintCount;
            cost *= mintCount;
        }

        // Check price
        require(msg.value >= payableCost, "Invalid amount");
        if (erc20 == ADDRESS_ZERO && cost != 0) {
            // solhint-disable-next-line
            (bool sent, ) = recipient.call{value: cost}("");
            require(sent, "Failed to transfer to receiver");
        }
    }

    function _checkMintIndex(address creatorContractAddress, uint256 instanceId, bytes32 merkleRoot, uint32 mintIndex) internal view returns (bool) {
        uint256 claimMintIndex = mintIndex >> 8;
        require(merkleRoot != "", "Can only check merkle claims");
        uint256 claimMintTracking = _claimMintIndices[creatorContractAddress][instanceId][claimMintIndex];
        uint256 mintBitmask = 1 << (mintIndex & MINT_INDEX_BITMASK);
        return mintBitmask & claimMintTracking != 0;
    }

    function _validateMint(address creatorContractAddress, uint256 instanceId, uint48 startDate, uint48 endDate, uint32 walletMax, bytes32 merkleRoot, uint32 mintIndex, bytes32[] calldata merkleProof, address mintFor) internal {
        // Check timestamps
        require(
            (startDate <= block.timestamp) &&
            (endDate == 0 || endDate >= block.timestamp),
            "Claim inactive"
        );

        if (merkleRoot != "") {
            // Merkle mint
            _checkMerkleAndUpdate(msg.sender, creatorContractAddress, instanceId, merkleRoot, mintIndex, merkleProof, mintFor);
        } else {
            require(mintFor == msg.sender, "Invalid input");
            // Non-merkle mint
            if (walletMax != 0) {
                require(++_mintsPerWallet[creatorContractAddress][instanceId][msg.sender] <= walletMax, "Maximum tokens already minted for this wallet");
            }
        }
    }

    function _validateMint(address creatorContractAddress, uint256 instanceId, uint48 startDate, uint48 endDate, uint32 walletMax, bytes32 merkleRoot, uint16 mintCount, uint32[] calldata mintIndices, bytes32[][] calldata merkleProofs, address mintFor) internal {
        // Check timestamps
        require(
            (startDate <= block.timestamp) &&
            (endDate == 0 || endDate >= block.timestamp),
            "Claim inactive"
        );

        if (merkleRoot != "") {
            require(mintCount == mintIndices.length && mintCount == merkleProofs.length, "Invalid input");
            // Merkle mint
            for (uint256 i; i < mintCount;) {
                _checkMerkleAndUpdate(msg.sender, creatorContractAddress, instanceId, merkleRoot, mintIndices[i], merkleProofs[i], mintFor);
                unchecked { ++i; }
            }
        } else {
            require(mintFor == msg.sender, "Invalid input");
            // Non-merkle mint
            if (walletMax != 0) {
                _mintsPerWallet[creatorContractAddress][instanceId][mintFor] += mintCount;
                require(_mintsPerWallet[creatorContractAddress][instanceId][mintFor] <= walletMax, "Too many requested for this wallet");
            }
        }
    }

    function _validateMintProxy(address creatorContractAddress, uint256 instanceId, uint48 startDate, uint48 endDate, uint32 walletMax, bytes32 merkleRoot, uint16 mintCount, uint32[] calldata mintIndices, bytes32[][] calldata merkleProofs, address mintFor) internal {
        // Check timestamps
        require(
            (startDate <= block.timestamp) &&
            (endDate == 0 || endDate >= block.timestamp),
            "Claim inactive"
        );

        if (merkleRoot != "") {
            require(mintCount == mintIndices.length && mintCount == merkleProofs.length, "Invalid input");
            // Merkle mint
            for (uint256 i; i < mintCount;) {
                // Proxy mints treat the mintFor as the transaction sender
                _checkMerkleAndUpdate(mintFor, creatorContractAddress, instanceId, merkleRoot, mintIndices[i], merkleProofs[i], mintFor);
                unchecked { ++i; }
            }
        } else {
            // Non-merkle mint
            if (walletMax != 0) {
                _mintsPerWallet[creatorContractAddress][instanceId][mintFor] += mintCount;
                require(_mintsPerWallet[creatorContractAddress][instanceId][mintFor] <= walletMax, "Too many requested for this wallet");
            }
        }
    }

    function _checkMerkleAndUpdate(address sender, address creatorContractAddress, uint256 instanceId, bytes32 merkleRoot, uint32 mintIndex, bytes32[] memory merkleProof, address mintFor) private {
        // Merkle mint
        bytes32 leaf;
        if (mintFor == sender) {
            leaf = keccak256(abi.encodePacked(sender, mintIndex));
        } else {
            // Direct verification failed, try delegate verification
            IDelegationRegistry dr = IDelegationRegistry(DELEGATION_REGISTRY);
            require(dr.checkDelegateForContract(sender, mintFor, address(this)), "Invalid delegate");
            leaf = keccak256(abi.encodePacked(mintFor, mintIndex));
        }
        require(MerkleProof.verify(merkleProof, merkleRoot, leaf), "Could not verify merkle proof");

        // Check if mintIndex has been minted
        uint256 claimMintIndex = mintIndex >> 8;
        uint256 claimMintTracking = _claimMintIndices[creatorContractAddress][instanceId][claimMintIndex];
        uint256 mintBitmask = 1 << (mintIndex & MINT_INDEX_BITMASK);
        require(mintBitmask & claimMintTracking == 0, "Already minted");
        _claimMintIndices[creatorContractAddress][instanceId][claimMintIndex] = claimMintTracking | mintBitmask;
    }

    function _getTotalMints(uint32 walletMax, address minter, address creatorContractAddress, uint256 instanceId) internal view returns(uint32) {
        require(walletMax != 0, "Can only retrieve for non-merkle claims with walletMax");
        return uint32(_mintsPerWallet[creatorContractAddress][instanceId][minter]);
    }

}