Contract 0x70bE4E3761188d0a8c525E54bB81c4Ea97712de4 3

 

Contract Overview

Balance:
0.7048128453125 Ether

EtherValue:
$937.89 (@ $1,330.69/ETH)

Token:
Txn Hash
Method
Block
From
To
Value
0x8d0bf465cdb6c520825e02fa6860cf0642aaa5aec337cc79461b5c32b5617486Set Approval For...156397022022-09-29 14:49:5929 mins agoENS Name ryansterling.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00081043 30.95150108
0x4361013ef604b0c203367430518025c6d865be87e6c1046c849b3564d5a4b736Set Approval For...156397012022-09-29 14:49:4729 mins agoENS Name ryansterling.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.0014638 31.76377345
0xe67a7e8f74ccd740f8c792bf3d32465400c849037b2370132878c98386d0dc24Set Approval For...156362712022-09-29 3:19:1111 hrs 59 mins ago0x549022effca2c4899c7b2eba5c3e324dd8c60ad8 IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.0004698 10.19454585
0x3ccccbea931536355fc262fb76ac84dc4f00c9199f2ee2d408a4dbda85972767Set Approval For...156361112022-09-29 2:46:4712 hrs 32 mins ago0x7e86e2c53336704d04c6f14a8aec75107fad7664 IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00047116 10.22404083
0x0ad1f57199308a98bcd891821039a383715378c1d84a8238ec7f018c49156eb4Set Approval For...156354352022-09-29 0:31:3514 hrs 47 mins ago0x5584a89a863933d731d84785171d3c3c4c27f413 IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00043935 9.53386914
0x003924c7ab120ac0b00c42a9cca30badf821192912ccef9bad9269883011e61eSafe Transfer Fr...156335502022-09-28 18:12:3521 hrs 6 mins agoENS Name ghosttrain.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00087122 31.92137126
0xa891618d73e96a672da025f0128f6f66286db4a6b3975eb699e959543bc1f138Safe Transfer Fr...156335502022-09-28 18:12:3521 hrs 6 mins agoENS Name ghosttrain.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.0021118 30.57043288
0x3437396b16c99c350d9d32aaca8c132c93ac814ad8689a833f774e205bdd55e8Set Approval For...156308942022-09-28 9:18:471 day 6 hrs ago0x87014883008d60fe80c302ba85fcaa9d389ed629 IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00063525 13.78476565
0x8013df16c7760e89d4ef375476c6c86f9700addf98ec7b6c6b6ea6f891e60355Transfer From156280432022-09-27 23:45:111 day 15 hrs ago0x629b63169f610e47b8fd0e205370a709f20ed0e3 IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00059258 8.93000614
0xc8a93db5b056556d7eb6580868749b2d88ef2bf0230c37135f8d37e2bf2c837aSafe Transfer Fr...156247712022-09-27 12:44:592 days 2 hrs agoENS Name violettazironi.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00149073 28.6790089
0x25493b22796acc8cc295ba360fc699afa1a4433eec5b61cbb4f186958318fa8bSet Approval For...156218652022-09-27 2:59:232 days 12 hrs agoENS Name scottlowry.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00058466 12.68694845
0xb90bb1208826d8b143e9db63c30adebeedcd272a951054f015723586b9185d38Transfer From156204962022-09-26 22:23:592 days 16 hrs ago0x629b63169f610e47b8fd0e205370a709f20ed0e3 IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00076017 10.92446342
0x8387e379c36cf425ea78f45c1b52b58efc9a9015e073cac8ae0f3a49c01e25cdSafe Transfer Fr...156204782022-09-26 22:20:232 days 16 hrs agoENS Name m4arc3l0.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.0006711 12.91074473
0x698d7011b6e748490611cca911df6cbd9466e32b470a7a557bad76e2dfed1d53Release156203922022-09-26 22:03:112 days 17 hrs agoENS Name violettazironi.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00109252 22.70521613
0x5154955ee39147939abc2e73e43490674dd4f329166772a8b20da12d0e83b10fSafe Transfer Fr...156200882022-09-26 21:01:472 days 18 hrs ago0x2bf2cdebe88cac00b4684bb314efe938135daef5 IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00102816 16.00111783
0x9c6fa2b37f6258d0523cc6cddd858f446021055fc1bd2b6fd9b43cf05c49d209Set Approval For...156199782022-09-26 20:39:352 days 18 hrs ago0x67cf27f419d0e4541dfd8456bc62234d590dbe9d IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00049825 20.6128406
0x25125e04ec2e25a5af76a2f6c359ec504576ac825e58515616266110332739ffSet Approval For...156185872022-09-26 15:58:112 days 23 hrs ago0xddbbad5cf3ca541e469372ede229fe3ac8e41ceb IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00094817 20.57482502
0xb33a489c21c370d9c9d02def51edc56f1c65c7e7db79b3e5862fd357a3e61f7fSafe Transfer Fr...156155122022-09-26 5:38:593 days 9 hrs agoENS Name seaport-drainer.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00053421 7.48270532
0x927f47ffe7d51d55b989abd541e54c40dcca15f17dc4ec4d21de9c08f34bdc75Set Approval For...156155092022-09-26 5:38:113 days 9 hrs agoENS Name web3washouts.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00024206 5.24307124
0x450e92929704cb8e7a2cf1928dfd936a40f274def300ce2e7c86daf0b90213a4Set Approval For...156151752022-09-26 4:31:113 days 10 hrs agoENS Name johnsmithnfts.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00027615 5.99233911
0x810691ec28de8e4d9211ff8008ec0fe40295ff63e8cd1300e492e4c3621c0a55Set Approval For...156140472022-09-26 0:43:593 days 14 hrs agoENS Name robbco.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.0002765 6
0xc13fed5f151850b4c74c1e8bb19fd8bedc71c93f53d3551fefee4ad20030eb99Release156133922022-09-25 22:32:353 days 16 hrs agoENS Name violettazironi.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00040111 8.33603871
0xe24da530afada882c0bfa8851a044f4fd9b3f49a38300224e59144b87eca0341Safe Transfer Fr...156124572022-09-25 19:23:593 days 19 hrs ago0x4a0b1d10f2aebc8b4a901e04280e9a22edab66eb IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00036209 6.96610512
0xe963d7aeecea3b4a1de4c9cbfff08560a277a8f827bb8672712c8a50195841a8Safe Transfer Fr...156119032022-09-25 17:32:473 days 21 hrs ago0xcae46a7aec75320cb2c3ef014db0aca3ce612d68 IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.00033872 7.17949844
0x920d861680f33b6d0645b7fe128fdc1a6ba573973482065333e7d6491b5d573bSafe Transfer Fr...156114272022-09-25 15:56:593 days 23 hrs agoENS Name sammyarriaga.eth IN  0x70be4e3761188d0a8c525e54bb81c4ea97712de40 Ether0.0005221 7.55796714
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0xc7396d3d0ad111788e8f0f485e8795e709783d9db729c702cbdd5f7884e8a1b0156365432022-09-29 4:13:4711 hrs 5 mins ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.008 Ether
0x1374410c9164d15f8b79ef99a5f2bcadb5e2e896326131293a4a164ba0bfdd99156338282022-09-28 19:08:1120 hrs 10 mins ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.008 Ether
0xf966d141c29eae741799bab558968d6a2aa31a0d697e785b7b5a1e944018665d156313672022-09-28 10:53:471 day 4 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.05 Ether
0xd207e2fd53b5ad846798afaca35c3db4135aad6e069b231793b8e94577b98ef3156272012022-09-27 20:54:351 day 18 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.00795 Ether
0x8771328397e35e7960ae012a3a0631590a5aec0739e930728d86745b8737925b156264432022-09-27 18:21:111 day 20 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.011 Ether
0xc969802e89c16cabb26d759b7d0ca75c15083b895fcc42a10c579bcbea95b1bc156261132022-09-27 17:14:471 day 22 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.0099 Ether
0x13fc27f4ab5f68d4e0946d8342e83ae2e5deb068273ff25f4caf4407cbc11737156260362022-09-27 16:59:111 day 22 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.009 Ether
0x7a518ef96b52f63c18d9e76a486eb4fc99deb024d08dc776a751f958daeadfd5156260122022-09-27 16:54:231 day 22 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.0079 Ether
0xc46c34d6ada51cb5401e58bd578f5417e75a65cd3e41eb5437d7a721a0c848ca156241492022-09-27 10:39:232 days 4 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.009 Ether
0x698d7011b6e748490611cca911df6cbd9466e32b470a7a557bad76e2dfed1d53156203922022-09-26 22:03:112 days 17 hrs ago 0x70be4e3761188d0a8c525e54bb81c4ea97712de40xc7c4c701f1643553417b904ca412d0fb964792e70.02394218 Ether
0xdf850c80e62cd536179aba0b155f1dcbc75a79c64b4f1c6b32fb1e94597d33b8156202952022-09-26 21:43:232 days 17 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.00789 Ether
0x5a8399d89849ddcbae4bf65ae0fec29eea82ace7739fe720b04c314f8bf52dd1156193532022-09-26 18:33:112 days 20 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.01 Ether
0x4227b7dec654e1e6a9a98eafffdc1bf01ffa4bc1a7d4d21d15e3dc397b8edbf8156187992022-09-26 16:41:112 days 22 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.0079 Ether
0xb513f2d103f4ae7f0bcf5152d61a4280c86eacaa64af24584d37d959b0f50316156171922022-09-26 11:16:353 days 4 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.01 Ether
0xc613f33060b155506b81707327f3dff00f281ae1b23812c5eb87d9dad84818c8156136942022-09-25 23:33:113 days 15 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.00799 Ether
0xc13fed5f151850b4c74c1e8bb19fd8bedc71c93f53d3551fefee4ad20030eb99156133922022-09-25 22:32:353 days 16 hrs ago 0x70be4e3761188d0a8c525e54bb81c4ea97712de40xc7c4c701f1643553417b904ca412d0fb964792e70.03984531 Ether
0xd5c27d127fc1cdf14daf6987d6752ed171d65164e2395b0de8ae77d435300d67156114272022-09-25 15:56:593 days 23 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.0091 Ether
0xa8cceb50464f48e3286ffbffee4416dfe243577a57cc5ca67b0f415b5af1dd88156034912022-09-24 13:23:115 days 1 hr ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.00887 Ether
0xc40f85d0139653244a10ac3751bd5c96e0324070997477d5d92352a120399eb3155926942022-09-23 1:14:356 days 14 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.01 Ether
0x67657cfd54e6fdee5c156c2a8db1fe50cbd0405e017f705aa4ab33a93b58fe90155850512022-09-21 23:35:237 days 15 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.0089 Ether
0x54b89993181775b5f9cbb0782ab07ad15d781dd3162019d633c78ff4bd7b16e6155778502022-09-20 23:05:478 days 16 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.009 Ether
0x1961696838be474b2b35e7f9460b154d26357870d595b4dadad8c5a267ccda04155769032022-09-20 19:54:478 days 19 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.00899 Ether
0x4c8f1a29d25c94984dda24587f58d1d1c3d7b7c8580c1942d9acc1fdbe320624155695032022-09-19 19:01:479 days 20 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.018 Ether
0xbbc99c639deca97d97e384278c7949d76aa30c7557e83e45a33220433dd34884155694992022-09-19 19:00:359 days 20 hrs ago 0x70be4e3761188d0a8c525e54bb81c4ea97712de40xc7c4c701f1643553417b904ca412d0fb964792e70.09583382 Ether
0x3f051c105d76275d8e2467ba6ae7340dbb6113a61e717b3d6ae46759fda41e3c155671572022-09-19 11:06:1110 days 4 hrs ago Seaport 1.1 0x70be4e3761188d0a8c525e54bb81c4ea97712de40.00899 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
NiftyMusic721

Compiler Version
v0.8.7+commit.e28d00a7

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 16 : nmerc721.sol
// @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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// @@@@@       @@@@@@@@@@@   @@@@@@@@*   @@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@@@    @@@@@@@@@@    @@@@@@
// @@@@@   #@    @@@@@@@@@   @@@@@@@@*   @@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@@@@.   @@@@@@@    @@@@@@@@
// @@@@@   #@@    @@@@@@@@   @@@@@@@@*   @@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@@@@@@    @@@@    @@@@@@@@@
// @@@@@   #@@@@    @@@@@@   @@@@@@@@*   @@@@@@@@                 @@@@@@@@@@@@@@    @@@@@@@@@@@@@@@@@@@@   &    @@@@@@@@@@@
// @@@@@   #@@@@@    @@@@@   @@@@@@@@*   @@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@@@@@@@@@     *@@@@@@@@@@@@
// @@@@@   #@@@@@@@    @@@   @@@@@@@@*   @@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@
// @@@@@   #@@@@@@@@@   &@   @@@@@@@@*   @@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@
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// @@@                                                                                                                   @@
// @@@  @@@@@@@@         [email protected]@@@@@@@    @@@@@@          @@@@@       @@@@@@@@@@@@@@       @@@@@*        &@@@@@@@@@@@@       @@
// @@@  @@@@@@@@@        @@@@@@@@@    @@@@@@          @@@@@     @@@@@@@@@@@@@@@@@@     @@@@@*     /@@@@@@@@@@@@@@@@@@    @@
// @@@  @@@@@*@@@,      @@@@ @@@@@    @@@@@@          @@@@@    @@@@@          @@@@@    @@@@@*    @@@@@@,        @@@@@@   @@
// @@@  @@@@@ @@@@      @@@@ @@@@@    @@@@@@          @@@@@    @@@@@                   @@@@@*   @@@@@@           @@@@@@  @@
// @@@  @@@@@  @@@@    @@@@  @@@@@    @@@@@@          @@@@@    %@@@@@@@@@@@            @@@@@*   @@@@@                    @@
// @@@  @@@@@  @@@@    @@@@  @@@@@    @@@@@@          @@@@@       @@@@@@@@@@@@@@@@     @@@@@*  &@@@@@                    @@
// @@@  @@@@@   @@@@  @@@@   @@@@@    @@@@@@          @@@@@               @@@@@@@@@@   @@@@@*   @@@@@                    @@
// @@@  @@@@@   @@@@ ,@@@    @@@@@    @@@@@@          @@@@@   @@@@@@           @@@@@   @@@@@*   @@@@@@           @@@@@@  @@
// @@@  @@@@@    @@@@@@@@    @@@@@    @@@@@@@        @@@@@@    @@@@@#         ,@@@@@   @@@@@*    @@@@@@@        @@@@@@   @@
// @@@  @@@@@    &@@@@@@     @@@@@     /@@@@@@@@@@@@@@@@@@      @@@@@@@@@@@@@@@@@@@    @@@@@*      @@@@@@@@@@@@@@@@@     @@
// @@@  @@@@@     @@@@@@     @@@@@        @@@@@@@@@@@@@            @@@@@@@@@@@@@       @@@@@*         @@@@@@@@@@@*       @@
// @@@                                                                                                                   @@
// @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "erc721a/contracts/ERC721A.sol";
import "erc721a/contracts/extensions/ERC721ABurnable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/finance/PaymentSplitter.sol";

contract NiftyMusic721 is ERC721A, ERC721ABurnable, Ownable, PaymentSplitter {

    using Strings for uint256;

    // The total tokens minted to an address. Does not matter if tokens are transferred out
    mapping(address => uint256) public addressMintCount;
    mapping(address => bool) public freeMintClaimed;

    string public baseTokenURI; // Can be combined with the tokenId to create the metadata URI
    uint256 public mintPhase = 0; // 0 = closed, 1 = WL sale, 2 = public sale
    bool public allowBurn = false; // Admin toggle for allowing the burning of tokens
    uint256 public constant MINT_PRICE = 0.05 ether; // Public mint price
    uint256 public constant ALLOWLIST_MINT_PRICE = 0.045 ether; // Mint price for allowlisted addresses only
    uint256 public constant MAX_TOTAL_SUPPLY = 2500; // The maximum total supply of tokens
    uint256 public constant MAX_MINT_COUNT = 10; // The maximum number of tokens any one address can mint
    uint256 public maxWLMintCount = 20; // The maximum number of tokens a whitelisted address can mint
    bytes32 public wlRoot; // The merkle tree root. Used for verifying allowlist addresses
    bytes32 public freeMintRoot; // Merkle root for free mint list

    uint256 private constant MAX_TOKEN_ITERATIONS = 40; // Used to prevent out-of-gas errors when looping

    event SetBaseURI(address _from);
    event Withdraw(address _from, address _to, uint amount);
    event MintPhaseChanged(address _from, uint newPhase);
    event ToggleAllowBurn(bool isAllowed);

    constructor(string memory _baseUri, bytes32 _WLmerkleroot, bytes32 _freeMintMerkleroot, address[] memory _payees, uint256[] memory _shares) ERC721A("Moonshot", "MOON") PaymentSplitter(_payees, _shares) {
        baseTokenURI = _baseUri;
        wlRoot = _WLmerkleroot;
        freeMintRoot = _freeMintMerkleroot;
    }

    // Allows the contract owner to update the merkle root (allowlist)
    function setWLMerkleRoot(bytes32 _WLmerkleroot) external onlyOwner {
        wlRoot = _WLmerkleroot;
    }

    // Allows the contract owner to update the merkle root (free mint list)
    function setFreeMintMerkleRoot(bytes32 _freeMintMerkleroot) external onlyOwner {
        freeMintRoot = _freeMintMerkleroot;
    }

    // Allows the contract owner to set a new base URI string
    function setBaseURI(string calldata _baseURI) external onlyOwner {
        baseTokenURI = _baseURI;
        emit SetBaseURI(msg.sender);
    }

    // Allows the contract owner to set the wl cap
    function setWLCap(uint _newCap) external onlyOwner {
        maxWLMintCount = _newCap;
    }

    // Overrides the tokenURI function so that the base URI can be returned
    function tokenURI(uint256 _tokenId) public view override returns (string memory) {
        string memory baseURI = baseTokenURI;
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, _tokenId.toString())) : "";
    } 

    function mint(uint256 _amount) external payable {
        uint256 supply = totalSupply();
        uint256 mintCount = addressMintCount[msg.sender];
        require(mintPhase==2, "Public sale is not yet active");
        require(_amount > 0, "Mint amount can't be zero");
        require(mintCount + _amount <= MAX_MINT_COUNT, "Exceeded max mint count");
        require(supply + _amount <= MAX_TOTAL_SUPPLY, "Max mint supply has been reached");
        require(_amount * MINT_PRICE == msg.value, "Check mint price");

        addressMintCount[msg.sender] = mintCount + _amount;
			
        _safeMint(msg.sender, _amount);
    }

    // Only accessible by the contract owner. This function is used to mint tokens for the team.
    function ownerMint(uint256 _amount, address _recipient) external onlyOwner {
        uint256 supply = totalSupply();
        require(_amount > 0, "Mint amount can't be zero");
        require(_amount <= MAX_TOKEN_ITERATIONS, "You cannot mint this many in one transaction"); // Used to avoid OOG errors.
        require(supply + _amount <= MAX_TOTAL_SUPPLY, "Max supply is reached");
        
        _safeMint(_recipient, _amount);
    }

    // Minting function for addresses on the allowlist only
    function mintAllowList(uint256 _amount, bytes32[] calldata _proof) external payable {
        uint256 supply = totalSupply();
        uint256 mintCount = addressMintCount[msg.sender];
        require(_verify(_leaf(msg.sender), _proof, wlRoot), "Wallet not on allowlist");
        require(mintCount + _amount <= maxWLMintCount, "Exceeded whitelist allowance.");
        require(mintPhase==1, "Allowlist sale is not active");
        require(_amount > 0, "Mint amount can't be zero");
        require(_amount <= MAX_TOKEN_ITERATIONS, "You cannot mint this many in one transaction."); // Used to avoid OOG errors
        require(supply + _amount <= MAX_TOTAL_SUPPLY, "Max supply is reached");
        require(_amount * ALLOWLIST_MINT_PRICE == msg.value, "Incorrect price");

        addressMintCount[msg.sender] = mintCount + _amount;
        
        _safeMint(msg.sender, _amount);
    }

    // Minting function addresses on the OG list only
    function mintFreeMintList(bytes32[] calldata _proof) external {
        uint256 supply = totalSupply();
        require(!freeMintClaimed[msg.sender], "Free mint already claimed");
        require(_verify(_leaf(msg.sender), _proof, freeMintRoot), "Wallet not on free mint list");
        require(mintPhase==1, "Sale is not active");
        require(supply + 1 <= MAX_TOTAL_SUPPLY, "Max supply is reached");

        freeMintClaimed[msg.sender] = true;

        // _safeMint's second argument now takes in a quantity, not a tokenId.
        _safeMint(msg.sender, 1);
    }

    // An owner-only function which toggles the public sale on/off
    function changeMintPhase(uint256 _newPhase) external onlyOwner {
        mintPhase = _newPhase;
        emit MintPhaseChanged(msg.sender, _newPhase);
    }

    // An owner-only function which toggles the allowBurn variable
    function toggleAllowBurn() external onlyOwner {
        allowBurn = !allowBurn;
        emit ToggleAllowBurn(allowBurn);
    }

    // Used to construct a merkle tree leaf
    function _leaf(address _account)
    internal pure returns (bytes32)
    {
        return keccak256(abi.encodePacked(_account));
    }

    // Verifies a leaf is part of the tree
    function _verify(bytes32 leaf, bytes32[] memory _proof, bytes32 _root) pure
    internal returns (bool)
    {
        return MerkleProof.verify(_proof, _root, leaf);
    }

    // Overrides the ERC721A burn function
    function burn(uint256 _tokenId) public virtual override {
        require(allowBurn, "Burning is not currently allowed");
        _burn(_tokenId, true);
    }
}

File 2 of 16 : PaymentSplitter.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (finance/PaymentSplitter.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/utils/SafeERC20.sol";
import "../utils/Address.sol";
import "../utils/Context.sol";

/**
 * @title PaymentSplitter
 * @dev This contract allows to split Ether payments among a group of accounts. The sender does not need to be aware
 * that the Ether will be split in this way, since it is handled transparently by the contract.
 *
 * The split can be in equal parts or in any other arbitrary proportion. The way this is specified is by assigning each
 * account to a number of shares. Of all the Ether that this contract receives, each account will then be able to claim
 * an amount proportional to the percentage of total shares they were assigned.
 *
 * `PaymentSplitter` follows a _pull payment_ model. This means that payments are not automatically forwarded to the
 * accounts but kept in this contract, and the actual transfer is triggered as a separate step by calling the {release}
 * function.
 *
 * NOTE: This contract assumes that ERC20 tokens will behave similarly to native tokens (Ether). Rebasing tokens, and
 * tokens that apply fees during transfers, are likely to not be supported as expected. If in doubt, we encourage you
 * to run tests before sending real value to this contract.
 */
contract PaymentSplitter is Context {
    event PayeeAdded(address account, uint256 shares);
    event PaymentReleased(address to, uint256 amount);
    event ERC20PaymentReleased(IERC20 indexed token, address to, uint256 amount);
    event PaymentReceived(address from, uint256 amount);

    uint256 private _totalShares;
    uint256 private _totalReleased;

    mapping(address => uint256) private _shares;
    mapping(address => uint256) private _released;
    address[] private _payees;

    mapping(IERC20 => uint256) private _erc20TotalReleased;
    mapping(IERC20 => mapping(address => uint256)) private _erc20Released;

    /**
     * @dev Creates an instance of `PaymentSplitter` where each account in `payees` is assigned the number of shares at
     * the matching position in the `shares` array.
     *
     * All addresses in `payees` must be non-zero. Both arrays must have the same non-zero length, and there must be no
     * duplicates in `payees`.
     */
    constructor(address[] memory payees, uint256[] memory shares_) payable {
        require(payees.length == shares_.length, "PaymentSplitter: payees and shares length mismatch");
        require(payees.length > 0, "PaymentSplitter: no payees");

        for (uint256 i = 0; i < payees.length; i++) {
            _addPayee(payees[i], shares_[i]);
        }
    }

    /**
     * @dev The Ether received will be logged with {PaymentReceived} events. Note that these events are not fully
     * reliable: it's possible for a contract to receive Ether without triggering this function. This only affects the
     * reliability of the events, and not the actual splitting of Ether.
     *
     * To learn more about this see the Solidity documentation for
     * https://solidity.readthedocs.io/en/latest/contracts.html#fallback-function[fallback
     * functions].
     */
    receive() external payable virtual {
        emit PaymentReceived(_msgSender(), msg.value);
    }

    /**
     * @dev Getter for the total shares held by payees.
     */
    function totalShares() public view returns (uint256) {
        return _totalShares;
    }

    /**
     * @dev Getter for the total amount of Ether already released.
     */
    function totalReleased() public view returns (uint256) {
        return _totalReleased;
    }

    /**
     * @dev Getter for the total amount of `token` already released. `token` should be the address of an IERC20
     * contract.
     */
    function totalReleased(IERC20 token) public view returns (uint256) {
        return _erc20TotalReleased[token];
    }

    /**
     * @dev Getter for the amount of shares held by an account.
     */
    function shares(address account) public view returns (uint256) {
        return _shares[account];
    }

    /**
     * @dev Getter for the amount of Ether already released to a payee.
     */
    function released(address account) public view returns (uint256) {
        return _released[account];
    }

    /**
     * @dev Getter for the amount of `token` tokens already released to a payee. `token` should be the address of an
     * IERC20 contract.
     */
    function released(IERC20 token, address account) public view returns (uint256) {
        return _erc20Released[token][account];
    }

    /**
     * @dev Getter for the address of the payee number `index`.
     */
    function payee(uint256 index) public view returns (address) {
        return _payees[index];
    }

    /**
     * @dev Triggers a transfer to `account` of the amount of Ether they are owed, according to their percentage of the
     * total shares and their previous withdrawals.
     */
    function release(address payable account) public virtual {
        require(_shares[account] > 0, "PaymentSplitter: account has no shares");

        uint256 totalReceived = address(this).balance + totalReleased();
        uint256 payment = _pendingPayment(account, totalReceived, released(account));

        require(payment != 0, "PaymentSplitter: account is not due payment");

        _released[account] += payment;
        _totalReleased += payment;

        Address.sendValue(account, payment);
        emit PaymentReleased(account, payment);
    }

    /**
     * @dev Triggers a transfer to `account` of the amount of `token` tokens they are owed, according to their
     * percentage of the total shares and their previous withdrawals. `token` must be the address of an IERC20
     * contract.
     */
    function release(IERC20 token, address account) public virtual {
        require(_shares[account] > 0, "PaymentSplitter: account has no shares");

        uint256 totalReceived = token.balanceOf(address(this)) + totalReleased(token);
        uint256 payment = _pendingPayment(account, totalReceived, released(token, account));

        require(payment != 0, "PaymentSplitter: account is not due payment");

        _erc20Released[token][account] += payment;
        _erc20TotalReleased[token] += payment;

        SafeERC20.safeTransfer(token, account, payment);
        emit ERC20PaymentReleased(token, account, payment);
    }

    /**
     * @dev internal logic for computing the pending payment of an `account` given the token historical balances and
     * already released amounts.
     */
    function _pendingPayment(
        address account,
        uint256 totalReceived,
        uint256 alreadyReleased
    ) private view returns (uint256) {
        return (totalReceived * _shares[account]) / _totalShares - alreadyReleased;
    }

    /**
     * @dev Add a new payee to the contract.
     * @param account The address of the payee to add.
     * @param shares_ The number of shares owned by the payee.
     */
    function _addPayee(address account, uint256 shares_) private {
        require(account != address(0), "PaymentSplitter: account is the zero address");
        require(shares_ > 0, "PaymentSplitter: shares are 0");
        require(_shares[account] == 0, "PaymentSplitter: account already has shares");

        _payees.push(account);
        _shares[account] = shares_;
        _totalShares = _totalShares + shares_;
        emit PayeeAdded(account, shares_);
    }
}

File 3 of 16 : MerkleProof.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees 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.
 */
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 Returns the rebuilt hash obtained by traversing a Merklee 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++) {
            bytes32 proofElement = proof[i];
            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = _efficientHash(computedHash, proofElement);
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = _efficientHash(proofElement, computedHash);
            }
        }
        return computedHash;
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

File 4 of 16 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        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 5 of 16 : ERC721ABurnable.sol
// SPDX-License-Identifier: MIT
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import '../ERC721A.sol';

/**
 * @title ERC721A Burnable Token
 * @dev ERC721A Token that can be irreversibly burned (destroyed).
 */
abstract contract ERC721ABurnable is ERC721A {
    /**
     * @dev Burns `tokenId`. See {ERC721A-_burn}.
     *
     * Requirements:
     *
     * - The caller must own `tokenId` or be an approved operator.
     */
    function burn(uint256 tokenId) public virtual {
        _burn(tokenId, true);
    }
}

File 6 of 16 : ERC721A.sol
// SPDX-License-Identifier: MIT
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';

error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error ApproveToCaller();
error ApprovalToCurrentOwner();
error BalanceQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerQueryForNonexistentToken();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Compiler will pack this into a single 256bit word.
    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Keeps track of the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
    }

    // Compiler will pack this into a single 256bit word.
    struct AddressData {
        // Realistically, 2**64-1 is more than enough.
        uint64 balance;
        // Keeps track of mint count with minimal overhead for tokenomics.
        uint64 numberMinted;
        // Keeps track of burn count with minimal overhead for tokenomics.
        uint64 numberBurned;
        // For miscellaneous variable(s) pertaining to the address
        // (e.g. number of whitelist mint slots used).
        // If there are multiple variables, please pack them into a uint64.
        uint64 aux;
    }

    // The tokenId of the next token to be minted.
    uint256 internal _currentIndex;

    // The number of tokens burned.
    uint256 internal _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.
    mapping(uint256 => TokenOwnership) internal _ownerships;

    // Mapping owner address to address data
    mapping(address => AddressData) private _addressData;

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

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

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    /**
     * To change the starting tokenId, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
     */
    function totalSupply() public view returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than _currentIndex - _startTokenId() times
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

    /**
     * Returns the total amount of tokens minted in the contract.
     */
    function _totalMinted() internal view returns (uint256) {
        // Counter underflow is impossible as _currentIndex does not decrement,
        // and it is initialized to _startTokenId()
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return uint256(_addressData[owner].balance);
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        return uint256(_addressData[owner].numberMinted);
    }

    /**
     * Returns the number of tokens burned by or on behalf of `owner`.
     */
    function _numberBurned(address owner) internal view returns (uint256) {
        return uint256(_addressData[owner].numberBurned);
    }

    /**
     * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     */
    function _getAux(address owner) internal view returns (uint64) {
        return _addressData[owner].aux;
    }

    /**
     * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     * If there are multiple variables, please pack them into a uint64.
     */
    function _setAux(address owner, uint64 aux) internal {
        _addressData[owner].aux = aux;
    }

    /**
     * Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around in the collection over time.
     */
    function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
        uint256 curr = tokenId;

        unchecked {
            if (_startTokenId() <= curr && curr < _currentIndex) {
                TokenOwnership memory ownership = _ownerships[curr];
                if (!ownership.burned) {
                    if (ownership.addr != address(0)) {
                        return ownership;
                    }
                    // Invariant:
                    // There will always be an ownership that has an address and is not burned
                    // before an ownership that does not have an address and is not burned.
                    // Hence, curr will not underflow.
                    while (true) {
                        curr--;
                        ownership = _ownerships[curr];
                        if (ownership.addr != address(0)) {
                            return ownership;
                        }
                    }
                }
            }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return _ownershipOf(tokenId).addr;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

        string memory baseURI = _baseURI();
        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : '';
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return '';
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public override {
        address owner = ERC721A.ownerOf(tokenId);
        if (to == owner) revert ApprovalToCurrentOwner();

        if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) {
            revert ApprovalCallerNotOwnerNorApproved();
        }

        _approve(to, tokenId, owner);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        if (operator == _msgSender()) revert ApproveToCaller();

        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, '');
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        _transfer(from, to, tokenId);
        if (to.isContract() && !_checkContractOnERC721Received(from, to, tokenId, _data)) {
            revert TransferToNonERC721ReceiverImplementer();
        }
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        return _startTokenId() <= tokenId && tokenId < _currentIndex && !_ownerships[tokenId].burned;
    }

    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, '');
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        _mint(to, quantity, _data, true);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _mint(
        address to,
        uint256 quantity,
        bytes memory _data,
        bool safe
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            _addressData[to].balance += uint64(quantity);
            _addressData[to].numberMinted += uint64(quantity);

            _ownerships[startTokenId].addr = to;
            _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            if (safe && to.isContract()) {
                do {
                    emit Transfer(address(0), to, updatedIndex);
                    if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (updatedIndex != end);
                // Reentrancy protection
                if (_currentIndex != startTokenId) revert();
            } else {
                do {
                    emit Transfer(address(0), to, updatedIndex++);
                } while (updatedIndex != end);
            }
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) private {
        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);

        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();

        bool isApprovedOrOwner = (_msgSender() == from ||
            isApprovedForAll(from, _msgSender()) ||
            getApproved(tokenId) == _msgSender());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId, from);

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            _addressData[from].balance -= 1;
            _addressData[to].balance += 1;

            TokenOwnership storage currSlot = _ownerships[tokenId];
            currSlot.addr = to;
            currSlot.startTimestamp = uint64(block.timestamp);

            // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            TokenOwnership storage nextSlot = _ownerships[nextTokenId];
            if (nextSlot.addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId != _currentIndex) {
                    nextSlot.addr = from;
                    nextSlot.startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @dev This is equivalent to _burn(tokenId, false)
     */
    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);

        address from = prevOwnership.addr;

        if (approvalCheck) {
            bool isApprovedOrOwner = (_msgSender() == from ||
                isApprovedForAll(from, _msgSender()) ||
                getApproved(tokenId) == _msgSender());

            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        }

        _beforeTokenTransfers(from, address(0), tokenId, 1);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId, from);

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            AddressData storage addressData = _addressData[from];
            addressData.balance -= 1;
            addressData.numberBurned += 1;

            // Keep track of who burned the token, and the timestamp of burning.
            TokenOwnership storage currSlot = _ownerships[tokenId];
            currSlot.addr = from;
            currSlot.startTimestamp = uint64(block.timestamp);
            currSlot.burned = true;

            // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            TokenOwnership storage nextSlot = _ownerships[nextTokenId];
            if (nextSlot.addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId != _currentIndex) {
                    nextSlot.addr = from;
                    nextSlot.startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked {
            _burnCounter++;
        }
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(
        address to,
        uint256 tokenId,
        address owner
    ) private {
        _tokenApprovals[tokenId] = to;
        emit Approval(owner, to, tokenId);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
            return retval == IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
     * minting.
     * And also called after one token has been burned.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}
}

File 7 of 16 : 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 8 of 16 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

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

    /**
     * @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);
    }
}

File 9 of 16 : 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 10 of 16 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 11 of 16 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

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

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

File 12 of 16 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 13 of 16 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

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

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

File 14 of 16 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 15 of 16 : 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 16 of 16 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

    /**
     * @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);
}

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

Contract Security Audit

Contract ABI

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : _baseUri (string): ipfs://QmRCC8xiAdoUkzY3LVzgMxFju1wd73tv6NhbRyHnJ8cDNn/
Arg [1] : _WLmerkleroot (bytes32): 0xb378a5c74441f3b654fa9d05d088828611ac51edbeb95df7dbbaa21b1bda5c85
Arg [2] : _freeMintMerkleroot (bytes32): 0x3f626299258e5ed0ae6ec5662b3ddb3469922a5a8d34ddd61fd42a0cf8f762a4
Arg [3] : _payees (address[]): 0xaE1F01F1E9F72D8bC7AF9E0f8F91D1566C70D494,0xc7c4c701F1643553417b904Ca412D0Fb964792E7,0x41FDF3F9E7b7c25F1cd7c9CD2CE42063857c3688,0x6ABb37B9c696e3e33470c057e667De7e6e468D38
Arg [4] : _shares (uint256[]): 200000,546875,151875,101250

-----Encoded View---------------
18 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [1] : b378a5c74441f3b654fa9d05d088828611ac51edbeb95df7dbbaa21b1bda5c85
Arg [2] : 3f626299258e5ed0ae6ec5662b3ddb3469922a5a8d34ddd61fd42a0cf8f762a4
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [4] : 00000000000000000000000000000000000000000000000000000000000001a0
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000036
Arg [6] : 697066733a2f2f516d52434338786941646f556b7a59334c567a674d78466a75
Arg [7] : 31776437337476364e68625279486e4a3863444e6e2f00000000000000000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [9] : 000000000000000000000000ae1f01f1e9f72d8bc7af9e0f8f91d1566c70d494
Arg [10] : 000000000000000000000000c7c4c701f1643553417b904ca412d0fb964792e7
Arg [11] : 00000000000000000000000041fdf3f9e7b7c25f1cd7c9cd2ce42063857c3688
Arg [12] : 0000000000000000000000006abb37b9c696e3e33470c057e667de7e6e468d38
Arg [13] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [14] : 0000000000000000000000000000000000000000000000000000000000030d40
Arg [15] : 000000000000000000000000000000000000000000000000000000000008583b
Arg [16] : 0000000000000000000000000000000000000000000000000000000000025143
Arg [17] : 0000000000000000000000000000000000000000000000000000000000018b82


Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.