Contract 0x8B1CfB508143CB13e97AC43f24309b76fD5fBdDb

 

Contract Overview

Balance:
24.8577 MATIC

MATIC Value:
$22.95 (@ $0.92/MATIC)

Token:
 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x988ede9bfa395a2eda2e928f8a598e3b14985ee96456a1cecdbfc11b82898e5cSet Approval For...360092912022-11-24 13:23:5114 days 16 hrs ago0x166d8fe3471500b67a0eefa6672c6f2305e8a498 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.002547670683 55.077626329
0x5803cbbe1cdcc00fd7af14aac2c2d6f62568bd0ef5bf20c596046ec618f1183aMint239374882022-01-20 7:23:42322 days 22 hrs ago0x87b14056127b32b6fa2ad9648ce2905b5e31d82b IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.8 MATIC0.049122452749 98.362941029
0x37ba6680de331169d4f9a95d6dbef7e2c271c1b0b7aae62b82904fe5ba15416dMint239005682022-01-19 8:54:38323 days 21 hrs ago0x026b71480aaa9d97386404057f5c87100377b98e IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.0001 MATIC0.06407919031 128.304647919
0x551b5f0b136052591e5a802b52ea190e11b657f3ea8681dabc6acd950a978f6fRedeem235663512022-01-10 18:56:17332 days 11 hrs ago0x64755d51120b3dea2f3360ca08b739e5d3908153 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.001351418430.6
0xdccb5e2748350736f2afc3e35eca6c831932bd725db53d2f868b0fff42fa08e7Redeem235663482022-01-10 18:56:11332 days 11 hrs ago0x64755d51120b3dea2f3360ca08b739e5d3908153 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.001351418430.6
0x741b0dd1cd25af2540ed8d2a0017597d17936c2987259d8ddc8f9503be7efff3Redeem232287512022-01-01 16:47:51341 days 13 hrs ago0xea1e9862721c79e3cdac83c45a6884837e21302c IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.00340062877
0x92bafc7751f55fff2305aa8b57eb7445abe112a5c25510323904b8ea919de06bRedeem232287312022-01-01 16:47:07341 days 13 hrs ago0xea1e9862721c79e3cdac83c45a6884837e21302c IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.0035331280
0x290e32041981ac37e1d8da3fc5626672a7fc3cbd093e28badf6f847e204fd97aRedeem231353012021-12-30 8:50:24343 days 21 hrs ago0x661ed5bf7686c494c4fdc94daa582b6dad52e954 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.0013249230
0x93b48ec08c0c91b9bab4e3f9f1230ea6d0c1db4aeaedb5e9ba0e6987ca664217Mint231352702021-12-30 8:49:18343 days 21 hrs ago0x3eacc3aa10781daf4539b4387b7f52948659e8f4 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.005 MATIC0.0149975130
0x0f1508150ec51f1273b1874820a9e210761b2ebe0bb47a7201e510b60b2c0091Mint231066072021-12-29 14:43:54344 days 15 hrs ago0xc5af3befb128d179a7d287e14a1069222b7c69dc IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.001 MATIC0.0149827830
0xb1fa53d62052645187ced5a388a079531b0ceb81ecc7c176b6c92124fd994e8dMint230400952021-12-27 22:43:06346 days 7 hrs ago0x64755d51120b3dea2f3360ca08b739e5d3908153 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.0666 MATIC0.0143347830
0xc06f9edad3f30ace14cdbe6afa404e75e6c7381661cb281b56dc8d2d5627c5c6Mint230400952021-12-27 22:43:06346 days 7 hrs ago0x64755d51120b3dea2f3360ca08b739e5d3908153 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.0666 MATIC0.0009145132881.858392902
0xf39bb1a472dd89c2bd0b354983c492b69b6453b6e3771b6fc2f0414831f148d1Mint230347642021-12-27 19:29:02346 days 10 hrs ago0x64755d51120b3dea2f3360ca08b739e5d3908153 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.0666 MATIC0.00115158562.2
0x307c5ce3c810bb3ba4710bc4191e07e2c98b50b26d102fc0249b41c472b2a84aMint230290972021-12-27 15:57:05346 days 14 hrs ago0x54e6627177165aa7b6f31752c744c306fac993db IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.01 MATIC0.01549742731
0xbcd0fb16984024560c9f52b049244bc7b478465d8628ab72b5f6134871bafdd8Mint230216942021-12-27 11:21:23346 days 18 hrs ago0x4087da108efb21754272700155609dd0f64ee960 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb1 MATIC0.0150059130
0xe18b2464d56bf93f80c15c0ab70eb3e91f3e07f8fb52fedb3f423a900948a97cRedeem230214242021-12-27 11:10:01346 days 18 hrs ago0xced15858ae1fd815cc1f35834c823b6e805b3095 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.0013249230
0x2f936a713d13c962a7129cf3c333f064c0e4a7d49074f84525d9fb55bf6b3efaRedeem230212092021-12-27 11:02:39346 days 18 hrs ago0x3ca57424f956a25f83b3cb2ea650484d123cb759 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.0013249230
0xf9230875c0c36067c5b7978634f2a5eeed8f7583b4cebd1848b35ffce2e88740Mint230210532021-12-27 10:57:15346 days 19 hrs ago0x26d05bdbdd48e1e1cc18bcaf7d89bed99e5d7153 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0.1 MATIC0.0007323384281.464100002
0x0c78bf1365e3b2f029ef2d5ae99a47bb2df954d0dbf4f923dc9fc0be52fcb9c3Mint230205542021-12-27 10:40:09346 days 19 hrs ago0x1b7d71f6cf7e2b9fe44d526381b8a2d1aa49c5d3 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb5 MATIC0.0179097930
0x45b76d26934f7062d1e074a291b4a87eed43b10e170a187d551bd178a4038787Redeem230189402021-12-27 9:40:15346 days 20 hrs ago0x13532b842adb6144ac5a4fbce11c0934dbd2f16f IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.0013249230
0x121f88d09c0982c23646fd2315baa51d8538c6fdcfce4dc50cf11fdc79df5a28Redeem230189172021-12-27 9:39:29346 days 20 hrs ago0xcf70f3db7f7a4a7195b978186c21f4ffc89f630e IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.0013249230
0xb29bf11d9d396f432821cac641186067fb23090a463224288547f7bed4ec1906Mint230189132021-12-27 9:39:21346 days 20 hrs ago0xcf70f3db7f7a4a7195b978186c21f4ffc89f630e IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb1 MATIC0.0149827830
0x4c8647b894448cefb4b262758c6a112528bb27e41a7e19fe6c8a6171153dbeb3Mint230188732021-12-27 9:37:57346 days 20 hrs ago0x13532b842adb6144ac5a4fbce11c0934dbd2f16f IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb1 MATIC0.014982930
0x64805e17b57a8a6fffa1f0a7075fa8d993f9b31e15a07f599e9b067a0e8d6ce1Redeem230187702021-12-27 9:32:57346 days 20 hrs ago0x207053a23d86fe3697dc073461f293894a931a72 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.0013249230
0xd9b14b22c2f887eb4bfc84d36d05a7f148314439b9d65d97b240073f5552528bRedeem230186372021-12-27 9:27:53346 days 20 hrs ago0x533a0ea2994fe49df6886f493231dcd161108e51 IN  0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0 MATIC0.0013249230
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Latest 25 internal transaction
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0x551b5f0b136052591e5a802b52ea190e11b657f3ea8681dabc6acd950a978f6f235663512022-01-10 18:56:17332 days 11 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x64755d51120b3dea2f3360ca08b739e5d39081530.0666 MATIC
0xdccb5e2748350736f2afc3e35eca6c831932bd725db53d2f868b0fff42fa08e7235663482022-01-10 18:56:11332 days 11 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x64755d51120b3dea2f3360ca08b739e5d39081530.0666 MATIC
0x741b0dd1cd25af2540ed8d2a0017597d17936c2987259d8ddc8f9503be7efff3232287512022-01-01 16:47:51341 days 13 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xea1e9862721c79e3cdac83c45a6884837e21302c4 MATIC
0x92bafc7751f55fff2305aa8b57eb7445abe112a5c25510323904b8ea919de06b232287312022-01-01 16:47:07341 days 13 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xea1e9862721c79e3cdac83c45a6884837e21302c4 MATIC
0x290e32041981ac37e1d8da3fc5626672a7fc3cbd093e28badf6f847e204fd97a231353012021-12-30 8:50:24343 days 21 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x661ed5bf7686c494c4fdc94daa582b6dad52e9540.005 MATIC
0xe18b2464d56bf93f80c15c0ab70eb3e91f3e07f8fb52fedb3f423a900948a97c230214242021-12-27 11:10:01346 days 18 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xced15858ae1fd815cc1f35834c823b6e805b30955 MATIC
0x2f936a713d13c962a7129cf3c333f064c0e4a7d49074f84525d9fb55bf6b3efa230212092021-12-27 11:02:39346 days 18 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x3ca57424f956a25f83b3cb2ea650484d123cb7590.1 MATIC
0x45b76d26934f7062d1e074a291b4a87eed43b10e170a187d551bd178a4038787230189402021-12-27 9:40:15346 days 20 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x13532b842adb6144ac5a4fbce11c0934dbd2f16f1 MATIC
0x121f88d09c0982c23646fd2315baa51d8538c6fdcfce4dc50cf11fdc79df5a28230189172021-12-27 9:39:29346 days 20 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xcf70f3db7f7a4a7195b978186c21f4ffc89f630e1 MATIC
0x64805e17b57a8a6fffa1f0a7075fa8d993f9b31e15a07f599e9b067a0e8d6ce1230187702021-12-27 9:32:57346 days 20 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x207053a23d86fe3697dc073461f293894a931a722 MATIC
0xd9b14b22c2f887eb4bfc84d36d05a7f148314439b9d65d97b240073f5552528b230186372021-12-27 9:27:53346 days 20 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x533a0ea2994fe49df6886f493231dcd161108e5110 MATIC
0xac5b6140c4bdc61bebe34de44f3d5c38314a38a01c8bc49d2a56852645c2d4f0230069602021-12-27 2:22:47347 days 3 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x377a3ec069cfc69780a6a02d3a3ade83377db6ff0.05 MATIC
0x55b974d7a721cc1c8ea054fe222517362d5e40dcf52ce8e853f6f3c340175a4d229826422021-12-26 11:08:46347 days 18 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xb727615567fd9e17819834fcc42a29c38ae6913f5 MATIC
0xa5ee07ee1b94286ce1f01423322d2cfa7441d72a0fdfd6b1d1c856db1291eb4a229801052021-12-26 9:38:15347 days 20 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x1c029b7c42e82c5a78a33058070bef1e903b9b355 MATIC
0x7a8b8788476f328df3fe910c31720ac4e0de84a2a51ec25d37d3827de876cf65229795892021-12-26 9:18:23347 days 20 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x78d471ba6b0ad8107671bbcf25e80c9611cb7b820.08 MATIC
0x3c86b5498d715d0f63602b6052cac11607af6505bb37052352c9ec1c53ddb2e6229774802021-12-26 8:03:18347 days 21 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xab28b487e412b08c7e800096776a74123fc8a0030.01 MATIC
0x3630159a9ccece5b06c1d8ba92b5696d14a7da165e8c0a7ef3ce116ce378cbfd229766882021-12-26 7:36:02347 days 22 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xab28b487e412b08c7e800096776a74123fc8a00310 MATIC
0x9d637078250fc9080ffb64457d095821de5f8767a45c6a6297180f0a2a10273c229766032021-12-26 7:33:08347 days 22 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xab368cc17b7de9071907428a6fe3c2ed8347abc50.01 MATIC
0x1f9390a7ee21caf6787bab65455e2bde9038ef668a265aaf7de5a5c6aedf9e9d229761962021-12-26 7:19:10347 days 22 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x66392cae8619293fe638378f60818caccee4a67d1 MATIC
0xce48896ab9d857d9aab15f0eee8eb2d0ab96cbffe4ff0ae5150ff5bd92fc865c229729692021-12-26 5:16:59348 days 41 mins ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x166d8fe3471500b67a0eefa6672c6f2305e8a49810 MATIC
0x7295f09bedc04427df64a2c14af4a916f76debf4bc2092f8eec15c9d3c317aac229678982021-12-26 2:18:43348 days 3 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x20e4a18c51dc0ee2e5dda2baf6006d6801cac0e85 MATIC
0xe50d077268c82dca706fe3ea4d3ec1624f057b3b271f62862551ecd028a82ab0229649532021-12-26 0:36:40348 days 5 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x01aaf2f22ac2770c91e905c3f3a402279ee1e01a1 MATIC
0xc445c4fd7a18c8013eba28fe5eaa866c07629fa84170140420734a753d63a537229456502021-12-25 12:42:13348 days 17 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xad6561e9e306c923512b4ea7af902994bebd99b80.09 MATIC
0xb5f2f149446269775e18f6b93105832482cc7b1b391152432ae6e510a9187a24229456152021-12-25 12:39:53348 days 17 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0xad6561e9e306c923512b4ea7af902994bebd99b80.29 MATIC
0x8a6c1ad4c1dde5f065294d2417491e1b8788a19845b284535a565210a4135c4e229367682021-12-25 7:18:11348 days 22 hrs ago 0x8b1cfb508143cb13e97ac43f24309b76fd5fbddb0x46d6eab0673a37c9b85466e4be01f0328ca564b81 MATIC
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Contract Source Code Verified (Exact Match)

Contract Name:
WagmiCards

Compiler Version
v0.8.0+commit.c7dfd78e

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 16 : WagmiCards.sol
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

import "./libraries/Base64.sol";


contract WagmiCards is Ownable, ERC721, ERC721Enumerable, ERC721URIStorage {
    string public contract_metadata;
    using Counters for Counters.Counter;
    Counters.Counter public _tokenIDs;

    struct Gift {
        uint256 tokenID;
        uint256 amount;
        bool redeemed;
        address from;
        uint256 redeem_at;
    }
    
    event GiftMintedToOwner(address indexed previousOwner,address indexed newOwner);
    event GiftRedeemed(address indexed owner,uint256 indexed tokenID);

    mapping(uint256 => Gift) private gifts;
    mapping(address => uint256[]) private ownerGifts;

    uint public _giftCharge = 0.01 ether;
    bool public _scheduledRedeemSwitch = true;

    constructor(
        string memory _name,
        string memory _symbol,
        string memory _metadata
    ) ERC721(_name, _symbol) {
        contract_metadata = _metadata;
    }

    function contractURI() public view returns (string memory) {
        return contract_metadata;
    }

    function mint(address ownerAddress, uint256 redeem_at, string memory message) public payable returns (uint256) {
        require(msg.value > _giftCharge, "Gift cannot be lesser than gift charge");

        // check if message length is greater than 140 chars
        require(bytes(message).length <= 140, "Message cannot be greater than 140 characters");

        _tokenIDs.increment();
        uint256 newID = _tokenIDs.current();

        uint256 amount = msg.value - _giftCharge;

        Gift memory newGift = Gift({
            tokenID: newID,
            amount: amount,
            redeemed: false,
            redeem_at: redeem_at,
            from: msg.sender
        });

        gifts[newID] = newGift;
        ownerGifts[ownerAddress].push(newID);

        string memory json = Base64.encode(
            bytes(
                string(
                    abi.encodePacked(
                        '{"name": "Wagmi Card #',
                        toString(newID),
                        '", "description": "',
                        message, '. Redeem at https://wagmi.cards/redeem-gift',
                        '", "image": "https://www.wagmi.cards/opensea-thumbnail.png"}'
                    )
                )
            )
        );

        string memory finalTokenUri = string(
            abi.encodePacked("data:application/json;base64,", json)
        );

        _safeMint(msg.sender, newID);
        _setTokenURI(newID, finalTokenUri);

        transferToken(msg.sender, ownerAddress, newID);

        emit GiftMintedToOwner(msg.sender, ownerAddress);

        return newID;
    }

    function getAllGifts(address owner) public view returns (Gift[] memory) {

        Gift[] memory result = new Gift[](ownerGifts[owner].length);

        for (uint256 i = 0; i < ownerGifts[owner].length; i++) {
            result[i] = gifts[ownerGifts[owner][i]];
        }

        return result;
    }

    function redeem(uint256 tokenID) public returns (uint256) {
        Gift memory gift = gifts[tokenID];
        require(gift.redeemed == false, "Gift has already been redeemed");

        address tokenOwner = ownerOf(tokenID);
        require(tokenOwner == msg.sender, "You do not own this gift");

        if(gift.redeem_at > 0 && _scheduledRedeemSwitch){
            require(gift.redeem_at < block.timestamp, "Gift can't be redeemed yet");
        }

        payable(msg.sender).transfer(gift.amount);
        gifts[tokenID].redeemed = true;

        emit GiftRedeemed(msg.sender, tokenID);

        return gift.amount;
    }

    function redeemAll() public {
        for (uint256 i = 0; i < ownerGifts[msg.sender].length; i++) {
            if(!gifts[ownerGifts[msg.sender][i]].redeemed) {
                if(gifts[ownerGifts[msg.sender][i]].redeem_at > 0){
                    require(gifts[ownerGifts[msg.sender][i]].redeem_at < block.timestamp, "Gift can't be redeemed yet");
                }

                payable(msg.sender).transfer(gifts[ownerGifts[msg.sender][i]].amount);
                gifts[ownerGifts[msg.sender][i]].redeemed = true;

                emit GiftRedeemed(msg.sender, gifts[ownerGifts[msg.sender][i]].tokenID);
            }
        }
    }

    function transferToken(
        address from,
        address to,
        uint256 tokenID
    ) public returns (bool) {
        super.safeTransferFrom(from, to, tokenID);
        return true;
    }

    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal override(ERC721, ERC721Enumerable) {
        super._beforeTokenTransfer(from, to, tokenId);
    }

    function _burn(uint256 tokenId)
        internal
        override(ERC721, ERC721URIStorage)
    {
        super._burn(tokenId);
    }

    function tokenURI(uint256 tokenId)
        public
        view
        override(ERC721, ERC721URIStorage)
        returns (string memory)
    {
        return super.tokenURI(tokenId);
    }

    function ownerOf(uint256 tokenId) public view override returns (address) {
        return super.ownerOf(tokenId);
    }

    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC721, ERC721Enumerable)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }

    function withdraw() public onlyOwner {

        uint redeemableBalanceForOwners = address(this).balance;

        for (uint256 i = 0; i < _tokenIDs.current(); i++) {
            if(!gifts[i].redeemed) {
                redeemableBalanceForOwners -= gifts[i].amount;
            }
        }

        require(redeemableBalanceForOwners > 0, "0 balance");
        payable(msg.sender).transfer(redeemableBalanceForOwners);
    }

    function overrideRedeemTime(uint256 tokenID, uint256 timestamp) public onlyOwner returns(Gift memory)  {
        gifts[tokenID].redeem_at = timestamp;
        return gifts[tokenID];
    }

    function overrideGiftCharge(uint256 updatedCharge) public onlyOwner {
        _giftCharge = updatedCharge;
    }

    function updateScheduleRedeemSwitch(bool switchStatus) public onlyOwner {
        _scheduledRedeemSwitch = switchStatus;
    }

    function updateContractMetadata(string memory metadata) public onlyOwner {
        contract_metadata = metadata;
    }
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT license
        // 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);
    }
}

File 2 of 16 : ERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

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

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // 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;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @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 virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    /**
     * @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) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        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 virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

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

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_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 {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _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 {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @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.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @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`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

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

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

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

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * 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
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

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

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a 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 _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * 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, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

File 3 of 16 : ERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../ERC721.sol";
import "./IERC721Enumerable.sol";

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
 * enumerability of all the token ids in the contract as well as all token ids owned by each
 * account.
 */
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
    // Mapping from owner to list of owned token IDs
    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;

    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;

    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;

    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
        return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
        return _ownedTokens[owner][index];
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _allTokens.length;
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
        return _allTokens[index];
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * 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, ``from``'s `tokenId` will be burned.
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual override {
        super._beforeTokenTransfer(from, to, tokenId);

        if (from == address(0)) {
            _addTokenToAllTokensEnumeration(tokenId);
        } else if (from != to) {
            _removeTokenFromOwnerEnumeration(from, tokenId);
        }
        if (to == address(0)) {
            _removeTokenFromAllTokensEnumeration(tokenId);
        } else if (to != from) {
            _addTokenToOwnerEnumeration(to, tokenId);
        }
    }

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        uint256 length = ERC721.balanceOf(to);
        _ownedTokens[to][length] = tokenId;
        _ownedTokensIndex[tokenId] = length;
    }

    /**
     * @dev Private function to add a token to this extension's token tracking data structures.
     * @param tokenId uint256 ID of the token to be added to the tokens list
     */
    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
        _allTokensIndex[tokenId] = _allTokens.length;
        _allTokens.push(tokenId);
    }

    /**
     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
     * @param from address representing the previous owner of the given token ID
     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
     */
    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary
        if (tokenIndex != lastTokenIndex) {
            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
        }

        // This also deletes the contents at the last position of the array
        delete _ownedTokensIndex[tokenId];
        delete _ownedTokens[from][lastTokenIndex];
    }

    /**
     * @dev Private function to remove a token from this extension's token tracking data structures.
     * This has O(1) time complexity, but alters the order of the _allTokens array.
     * @param tokenId uint256 ID of the token to be removed from the tokens list
     */
    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _allTokens.length - 1;
        uint256 tokenIndex = _allTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
        uint256 lastTokenId = _allTokens[lastTokenIndex];

        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

        // This also deletes the contents at the last position of the array
        delete _allTokensIndex[tokenId];
        _allTokens.pop();
    }
}

File 4 of 16 : ERC721URIStorage.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721URIStorage.sol)

pragma solidity ^0.8.0;

import "../ERC721.sol";

/**
 * @dev ERC721 token with storage based token URI management.
 */
abstract contract ERC721URIStorage is ERC721 {
    using Strings for uint256;

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

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721URIStorage: URI query for nonexistent token");

        string memory _tokenURI = _tokenURIs[tokenId];
        string memory base = _baseURI();

        // If there is no base URI, return the token URI.
        if (bytes(base).length == 0) {
            return _tokenURI;
        }
        // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
        if (bytes(_tokenURI).length > 0) {
            return string(abi.encodePacked(base, _tokenURI));
        }

        return super.tokenURI(tokenId);
    }

    /**
     * @dev Sets `_tokenURI` as the tokenURI of `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual {
        require(_exists(tokenId), "ERC721URIStorage: URI set of nonexistent token");
        _tokenURIs[tokenId] = _tokenURI;
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual override {
        super._burn(tokenId);

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

File 5 of 16 : Counters.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

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

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

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

File 6 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 7 of 16 : Base64.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

/// @title Base64
/// @author Brecht Devos - <[email protected]>
/// @notice Provides functions for encoding/decoding base64
library Base64 {
    string internal constant TABLE_ENCODE =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
    bytes internal constant TABLE_DECODE =
        hex"0000000000000000000000000000000000000000000000000000000000000000"
        hex"00000000000000000000003e0000003f3435363738393a3b3c3d000000000000"
        hex"00000102030405060708090a0b0c0d0e0f101112131415161718190000000000"
        hex"001a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132330000000000";

    function encode(bytes memory data) internal pure returns (string memory) {
        if (data.length == 0) return "";

        // load the table into memory
        string memory table = TABLE_ENCODE;

        // multiply by 4/3 rounded up
        uint256 encodedLen = 4 * ((data.length + 2) / 3);

        // add some extra buffer at the end required for the writing
        string memory result = new string(encodedLen + 32);

        assembly {
            // set the actual output length
            mstore(result, encodedLen)

            // prepare the lookup table
            let tablePtr := add(table, 1)

            // input ptr
            let dataPtr := data
            let endPtr := add(dataPtr, mload(data))

            // result ptr, jump over length
            let resultPtr := add(result, 32)

            // run over the input, 3 bytes at a time
            for {

            } lt(dataPtr, endPtr) {

            } {
                // read 3 bytes
                dataPtr := add(dataPtr, 3)
                let input := mload(dataPtr)

                // write 4 characters
                mstore8(
                    resultPtr,
                    mload(add(tablePtr, and(shr(18, input), 0x3F)))
                )
                resultPtr := add(resultPtr, 1)
                mstore8(
                    resultPtr,
                    mload(add(tablePtr, and(shr(12, input), 0x3F)))
                )
                resultPtr := add(resultPtr, 1)
                mstore8(
                    resultPtr,
                    mload(add(tablePtr, and(shr(6, input), 0x3F)))
                )
                resultPtr := add(resultPtr, 1)
                mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))
                resultPtr := add(resultPtr, 1)
            }

            // padding with '='
            switch mod(mload(data), 3)
            case 1 {
                mstore(sub(resultPtr, 2), shl(240, 0x3d3d))
            }
            case 2 {
                mstore(sub(resultPtr, 1), shl(248, 0x3d))
            }
        }

        return result;
    }

    function decode(string memory _data) internal pure returns (bytes memory) {
        bytes memory data = bytes(_data);

        if (data.length == 0) return new bytes(0);
        require(data.length % 4 == 0, "invalid base64 decoder input");

        // load the table into memory
        bytes memory table = TABLE_DECODE;

        // every 4 characters represent 3 bytes
        uint256 decodedLen = (data.length / 4) * 3;

        // add some extra buffer at the end required for the writing
        bytes memory result = new bytes(decodedLen + 32);

        assembly {
            // padding with '='
            let lastBytes := mload(add(data, mload(data)))
            if eq(and(lastBytes, 0xFF), 0x3d) {
                decodedLen := sub(decodedLen, 1)
                if eq(and(lastBytes, 0xFFFF), 0x3d3d) {
                    decodedLen := sub(decodedLen, 1)
                }
            }

            // set the actual output length
            mstore(result, decodedLen)

            // prepare the lookup table
            let tablePtr := add(table, 1)

            // input ptr
            let dataPtr := data
            let endPtr := add(dataPtr, mload(data))

            // result ptr, jump over length
            let resultPtr := add(result, 32)

            // run over the input, 4 characters at a time
            for {

            } lt(dataPtr, endPtr) {

            } {
                // read 4 characters
                dataPtr := add(dataPtr, 4)
                let input := mload(dataPtr)

                // write 3 bytes
                let output := add(
                    add(
                        shl(
                            18,
                            and(
                                mload(add(tablePtr, and(shr(24, input), 0xFF))),
                                0xFF
                            )
                        ),
                        shl(
                            12,
                            and(
                                mload(add(tablePtr, and(shr(16, input), 0xFF))),
                                0xFF
                            )
                        )
                    ),
                    add(
                        shl(
                            6,
                            and(
                                mload(add(tablePtr, and(shr(8, input), 0xFF))),
                                0xFF
                            )
                        ),
                        and(mload(add(tablePtr, and(input, 0xFF))), 0xFF)
                    )
                )
                mstore(resultPtr, shl(232, output))
                resultPtr := add(resultPtr, 3)
            }
        }

        return result;
    }
}

File 8 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 9 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 10 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 11 of 16 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 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 12 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 13 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 14 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 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 : IERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"string","name":"_metadata","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"GiftMintedToOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenID","type":"uint256"}],"name":"GiftRedeemed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"_giftCharge","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_scheduledRedeemSwitch","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_tokenIDs","outputs":[{"internalType":"uint256","name":"_value","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"contract_metadata","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"getAllGifts","outputs":[{"components":[{"internalType":"uint256","name":"tokenID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bool","name":"redeemed","type":"bool"},{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"redeem_at","type":"uint256"}],"internalType":"struct WagmiCards.Gift[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"ownerAddress","type":"address"},{"internalType":"uint256","name":"redeem_at","type":"uint256"},{"internalType":"string","name":"message","type":"string"}],"name":"mint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"updatedCharge","type":"uint256"}],"name":"overrideGiftCharge","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenID","type":"uint256"},{"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"overrideRedeemTime","outputs":[{"components":[{"internalType":"uint256","name":"tokenID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bool","name":"redeemed","type":"bool"},{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"redeem_at","type":"uint256"}],"internalType":"struct WagmiCards.Gift","name":"","type":"tuple"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenID","type":"uint256"}],"name":"redeem","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"redeemAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenID","type":"uint256"}],"name":"transferToken","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"metadata","type":"string"}],"name":"updateContractMetadata","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"switchStatus","type":"bool"}],"name":"updateScheduleRedeemSwitch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000000b7761676d692e6361726473000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b7761676d692e6361726473000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002e68747470733a2f2f7777772e7761676d692e63617264732f636f6e74726163742d6d657461646174612e6a736f6e000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _name (string): wagmi.cards
Arg [1] : _symbol (string): wagmi.cards
Arg [2] : _metadata (string): https://www.wagmi.cards/contract-metadata.json

-----Encoded View---------------
10 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [3] : 000000000000000000000000000000000000000000000000000000000000000b
Arg [4] : 7761676d692e6361726473000000000000000000000000000000000000000000
Arg [5] : 000000000000000000000000000000000000000000000000000000000000000b
Arg [6] : 7761676d692e6361726473000000000000000000000000000000000000000000
Arg [7] : 000000000000000000000000000000000000000000000000000000000000002e
Arg [8] : 68747470733a2f2f7777772e7761676d692e63617264732f636f6e7472616374
Arg [9] : 2d6d657461646174612e6a736f6e000000000000000000000000000000000000


Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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