Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.5+commit.a4f2e591.js&optimize=false&runs=200&gist=

.deps...github...OpenZeppelin...openzeppelin-contracts...contracts...access...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);
    }
}

.deps...github...OpenZeppelin...openzeppelin-contracts...contracts...token...ERC20...ERC20.sol

// this line is added to create a gist. Empty file is not allowed.

.deps...github...OpenZeppelin...openzeppelin-contracts...contracts...token...ERC20...extensions...ERC20Capped.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Capped.sol)

pragma solidity ^0.8.0;

import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol";

/**
 * @dev Extension of {ERC20} that adds a cap to the supply of tokens.
 */
abstract contract ERC20Capped is ERC20 {
    uint256 private immutable _cap;

    /**
     * @dev Sets the value of the `cap`. This value is immutable, it can only be
     * set once during construction.
     */
    constructor(uint256 cap_) {
        require(cap_ > 0, "ERC20Capped: cap is 0");
        _cap = cap_;
    }

    /**
     * @dev Returns the cap on the token's total supply.
     */
    function cap() public view virtual returns (uint256) {
        return _cap;
    }

    /**
     * @dev See {ERC20-_mint}.
     */
    function _mint(address account, uint256 amount) internal virtual override {
        require(ERC20.totalSupply() + amount <= cap(), "ERC20Capped: cap exceeded");
        super._mint(account, amount);
    }
}

.deps...github...OpenZeppelin...openzeppelin-contracts...contracts...token...ERC20...extensions...IERC20Metadata.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

.deps...github...OpenZeppelin...openzeppelin-contracts...contracts...token...ERC20...IERC20.sol

// this line is added to create a gist. Empty file is not allowed.

.deps...github...OpenZeppelin...openzeppelin-contracts...contracts...utils...Context.sol

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

pragma solidity ^0.8.0;

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

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

.deps...github...OpenZeppelin...openzeppelin-contracts...contracts...utils...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;
    }
}

README.txt

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS

The 'scripts' folder contains example async/await scripts for deploying the 'Storage' contract.
For the deployment of any other contract, 'contractName' and 'constructorArgs' should be updated (along with other code if required). 
Scripts have full access to the web3.js and ethers.js libraries.

To run a script, right click on file name in the file explorer and click 'Run'. Remember, Solidity file must already be compiled.

Output from script will appear in remix terminal.

contracts...1_Storage.sol

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

/**
 * @title Storage
 * @dev Store & retrieve value in a variable
 */
contract Storage {

    uint256 number;

    /**
     * @dev Store value in variable
     * @param num value to store
     */
    function store(uint256 num) public {
        number = num;
    }

    /**
     * @dev Return value 
     * @return value of 'number'
     */
    function retrieve() public view returns (uint256){
        return number;
    }
}

contracts...2_Owner.sol

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

/**
 * @title Owner
 * @dev Set & change owner
 */
contract Owner {

    address private owner;
    
    // event for EVM logging
    event OwnerSet(address indexed oldOwner, address indexed newOwner);
    
    // modifier to check if caller is owner
    modifier isOwner() {
        // If the first argument of 'require' evaluates to 'false', execution terminates and all
        // changes to the state and to Ether balances are reverted.
        // This used to consume all gas in old EVM versions, but not anymore.
        // It is often a good idea to use 'require' to check if functions are called correctly.
        // As a second argument, you can also provide an explanation about what went wrong.
        require(msg.sender == owner, "Caller is not owner");
        _;
    }
    
    /**
     * @dev Set contract deployer as owner
     */
    constructor() {
        owner = msg.sender; // 'msg.sender' is sender of current call, contract deployer for a constructor
        emit OwnerSet(address(0), owner);
    }

    /**
     * @dev Change owner
     * @param newOwner address of new owner
     */
    function changeOwner(address newOwner) public isOwner {
        emit OwnerSet(owner, newOwner);
        owner = newOwner;
    }

    /**
     * @dev Return owner address 
     * @return address of owner
     */
    function getOwner() external view returns (address) {
        return owner;
    }
}

contracts...3_Ballot.sol

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

/** 
 * @title Ballot
 * @dev Implements voting process along with vote delegation
 */
contract Ballot {
   
    struct Voter {
        uint weight; // weight is accumulated by delegation
        bool voted;  // if true, that person already voted
        address delegate; // person delegated to
        uint vote;   // index of the voted proposal
    }

    struct Proposal {
        // If you can limit the length to a certain number of bytes, 
        // always use one of bytes1 to bytes32 because they are much cheaper
        bytes32 name;   // short name (up to 32 bytes)
        uint voteCount; // number of accumulated votes
    }

    address public chairperson;

    mapping(address => Voter) public voters;

    Proposal[] public proposals;

    /** 
     * @dev Create a new ballot to choose one of 'proposalNames'.
     * @param proposalNames names of proposals
     */
    constructor(bytes32[] memory proposalNames) {
        chairperson = msg.sender;
        voters[chairperson].weight = 1;

        for (uint i = 0; i < proposalNames.length; i++) {
            // 'Proposal({...})' creates a temporary
            // Proposal object and 'proposals.push(...)'
            // appends it to the end of 'proposals'.
            proposals.push(Proposal({
                name: proposalNames[i],
                voteCount: 0
            }));
        }
    }
    
    /** 
     * @dev Give 'voter' the right to vote on this ballot. May only be called by 'chairperson'.
     * @param voter address of voter
     */
    function giveRightToVote(address voter) public {
        require(
            msg.sender == chairperson,
            "Only chairperson can give right to vote."
        );
        require(
            !voters[voter].voted,
            "The voter already voted."
        );
        require(voters[voter].weight == 0);
        voters[voter].weight = 1;
    }

    /**
     * @dev Delegate your vote to the voter 'to'.
     * @param to address to which vote is delegated
     */
    function delegate(address to) public {
        Voter storage sender = voters[msg.sender];
        require(!sender.voted, "You already voted.");
        require(to != msg.sender, "Self-delegation is disallowed.");

        while (voters[to].delegate != address(0)) {
            to = voters[to].delegate;

            // We found a loop in the delegation, not allowed.
            require(to != msg.sender, "Found loop in delegation.");
        }
        sender.voted = true;
        sender.delegate = to;
        Voter storage delegate_ = voters[to];
        if (delegate_.voted) {
            // If the delegate already voted,
            // directly add to the number of votes
            proposals[delegate_.vote].voteCount += sender.weight;
        } else {
            // If the delegate did not vote yet,
            // add to her weight.
            delegate_.weight += sender.weight;
        }
    }

    /**
     * @dev Give your vote (including votes delegated to you) to proposal 'proposals[proposal].name'.
     * @param proposal index of proposal in the proposals array
     */
    function vote(uint proposal) public {
        Voter storage sender = voters[msg.sender];
        require(sender.weight != 0, "Has no right to vote");
        require(!sender.voted, "Already voted.");
        sender.voted = true;
        sender.vote = proposal;

        // If 'proposal' is out of the range of the array,
        // this will throw automatically and revert all
        // changes.
        proposals[proposal].voteCount += sender.weight;
    }

    /** 
     * @dev Computes the winning proposal taking all previous votes into account.
     * @return winningProposal_ index of winning proposal in the proposals array
     */
    function winningProposal() public view
            returns (uint winningProposal_)
    {
        uint winningVoteCount = 0;
        for (uint p = 0; p < proposals.length; p++) {
            if (proposals[p].voteCount > winningVoteCount) {
                winningVoteCount = proposals[p].voteCount;
                winningProposal_ = p;
            }
        }
    }

    /** 
     * @dev Calls winningProposal() function to get the index of the winner contained in the proposals array and then
     * @return winnerName_ the name of the winner
     */
    function winnerName() public view
            returns (bytes32 winnerName_)
    {
        winnerName_ = proposals[winningProposal()].name;
    }
}

contracts...artifacts...Artist.json

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	"deploy": {
		"VM:-": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"main:1": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"ropsten:3": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"rinkeby:4": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"kovan:42": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"görli:5": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"Custom": {
			"linkReferences": {},
			"autoDeployLib": true
		}
	},
	"data": {
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			"functionDebugData": {},
			"generatedSources": [],
			"linkReferences": {},
			"object": "6080604052348015600f57600080fd5b50603f80601d6000396000f3fe6080604052600080fdfea264697066735822122041339e67e03b17740d0a1f870617829a2d6b622588038fbcf3caef085cbf2f3964736f6c63430008070033",
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			"sourceMap": "176:209:0:-:0;;;;;;;;;;;;;;;;;;;"
		},
		"deployedBytecode": {
			"functionDebugData": {},
			"generatedSources": [],
			"immutableReferences": {},
			"linkReferences": {},
			"object": "6080604052600080fdfea264697066735822122041339e67e03b17740d0a1f870617829a2d6b622588038fbcf3caef085cbf2f3964736f6c63430008070033",
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			"sourceMap": "176:209:0:-:0;;;;;"
		},
		"gasEstimates": {
			"creation": {
				"codeDepositCost": "12600",
				"executionCost": "66",
				"totalCost": "12666"
			}
		},
		"methodIdentifiers": {}
	},
	"abi": []
}

contracts...artifacts...Artist_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [],
		"devdoc": {
			"kind": "dev",
			"methods": {},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "Artist"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
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			"license": "UNLICENSED",
			"urls": [
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				"dweb:/ipfs/QmSo12F2zBF7xYELyPc3yuYxWSdCxUwemKcXMK5hVPPFwB"
			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol": {
			"keccak256": "0xf0018c2440fbe238dd3a8732fa8e17a0f9dce84d31451dc8a32f6d62b349c9f1",
			"license": "MIT",
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			]
		}
	},
	"version": 1
}

contracts...artifacts...ArtistMember.json

{
	"deploy": {
		"VM:-": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"main:1": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"ropsten:3": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"rinkeby:4": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"kovan:42": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"görli:5": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"Custom": {
			"linkReferences": {},
			"autoDeployLib": true
		}
	},
	"data": {
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			"generatedSources": [],
			"linkReferences": {},
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			"sourceMap": "176:215:0:-:0;;;;;;;;;;;;;;;;;;;"
		},
		"deployedBytecode": {
			"functionDebugData": {},
			"generatedSources": [],
			"immutableReferences": {},
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			"sourceMap": "176:215:0:-:0;;;;;"
		},
		"gasEstimates": {
			"creation": {
				"codeDepositCost": "12600",
				"executionCost": "66",
				"totalCost": "12666"
			}
		},
		"methodIdentifiers": {}
	},
	"abi": []
}

contracts...artifacts...ArtistMember_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [],
		"devdoc": {
			"kind": "dev",
			"methods": {},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "ArtistMember"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
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			"license": "UNLICENSED",
			"urls": [
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			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol": {
			"keccak256": "0xf0018c2440fbe238dd3a8732fa8e17a0f9dce84d31451dc8a32f6d62b349c9f1",
			"license": "MIT",
			"urls": [
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				"dweb:/ipfs/QmezuXg5GK5oeA4F91EZhozBFekhq5TD966bHPH18cCqhu"
			]
		}
	},
	"version": 1
}

contracts...artifacts...ArtistMembers.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...ArtistMembers_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [
			{
				"inputs": [],
				"stateMutability": "nonpayable",
				"type": "constructor"
			},
			{
				"anonymous": false,
				"inputs": [
					{
						"indexed": true,
						"internalType": "address",
						"name": "artistAddress",
						"type": "address"
					}
				],
				"name": "ArtistAdd",
				"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"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "_address",
						"type": "address"
					},
					{
						"internalType": "string",
						"name": "_name",
						"type": "string"
					},
					{
						"internalType": "string",
						"name": "_iconURL",
						"type": "string"
					}
				],
				"name": "addArtist",
				"outputs": [
					{
						"components": [
							{
								"internalType": "uint256",
								"name": "id",
								"type": "uint256"
							},
							{
								"internalType": "address",
								"name": "artistAddress",
								"type": "address"
							},
							{
								"internalType": "string",
								"name": "name",
								"type": "string"
							},
							{
								"internalType": "string",
								"name": "iconURL",
								"type": "string"
							}
						],
						"internalType": "struct SLib.Artist",
						"name": "artist",
						"type": "tuple"
					}
				],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "_address",
						"type": "address"
					}
				],
				"name": "checkIsArtistExist",
				"outputs": [
					{
						"internalType": "bool",
						"name": "",
						"type": "bool"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "_address",
						"type": "address"
					}
				],
				"name": "getArtistByAddress",
				"outputs": [
					{
						"components": [
							{
								"internalType": "uint256",
								"name": "id",
								"type": "uint256"
							},
							{
								"internalType": "address",
								"name": "artistAddress",
								"type": "address"
							},
							{
								"internalType": "string",
								"name": "name",
								"type": "string"
							},
							{
								"internalType": "string",
								"name": "iconURL",
								"type": "string"
							}
						],
						"internalType": "struct SLib.Artist",
						"name": "artist",
						"type": "tuple"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "uint256",
						"name": "id",
						"type": "uint256"
					}
				],
				"name": "getArtistById",
				"outputs": [
					{
						"components": [
							{
								"internalType": "uint256",
								"name": "id",
								"type": "uint256"
							},
							{
								"internalType": "address",
								"name": "artistAddress",
								"type": "address"
							},
							{
								"internalType": "string",
								"name": "name",
								"type": "string"
							},
							{
								"internalType": "string",
								"name": "iconURL",
								"type": "string"
							}
						],
						"internalType": "struct SLib.Artist",
						"name": "artist",
						"type": "tuple"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "getArtistSize",
				"outputs": [
					{
						"internalType": "uint256",
						"name": "",
						"type": "uint256"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "owner",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "renounceOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "transferOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			}
		],
		"devdoc": {
			"kind": "dev",
			"methods": {
				"owner()": {
					"details": "Returns the address of the current owner."
				},
				"renounceOwnership()": {
					"details": "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."
				},
				"transferOwnership(address)": {
					"details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
				}
			},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "ArtistMembers"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
		"contracts/ArtProject.sol": {
			"keccak256": "0x328c0c21fe1cb6cb2e0c7498117233087d55fcbcfc20e2ac23b814a7de8290a1",
			"license": "UNLICENSED",
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			]
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			"license": "MIT",
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		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol": {
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}

contracts...artifacts...ArtProject.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...ArtProject_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [
			{
				"inputs": [],
				"stateMutability": "nonpayable",
				"type": "constructor"
			},
			{
				"anonymous": false,
				"inputs": [
					{
						"indexed": true,
						"internalType": "address",
						"name": "previousOwner",
						"type": "address"
					},
					{
						"indexed": true,
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "OwnershipTransferred",
				"type": "event"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "_artistAddress",
						"type": "address"
					},
					{
						"internalType": "string",
						"name": "_name",
						"type": "string"
					},
					{
						"internalType": "string",
						"name": "_description",
						"type": "string"
					},
					{
						"internalType": "string",
						"name": "_introductionLink",
						"type": "string"
					},
					{
						"internalType": "uint256",
						"name": "_targetFundingAmount",
						"type": "uint256"
					},
					{
						"internalType": "uint256",
						"name": "_currentFundingAmount",
						"type": "uint256"
					}
				],
				"name": "addProject",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "owner",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "renounceOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "transferOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			}
		],
		"devdoc": {
			"kind": "dev",
			"methods": {
				"owner()": {
					"details": "Returns the address of the current owner."
				},
				"renounceOwnership()": {
					"details": "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."
				},
				"transferOwnership(address)": {
					"details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
				}
			},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
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			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "ArtProject"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
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			"runs": 200
		},
		"remappings": []
	},
	"sources": {
		"contracts/ArtProject.sol": {
			"keccak256": "0x81d21e6c60432cdc00a8702fc78de407dfb6df0a9649d1ae5f27d75793efb6db",
			"license": "UNLICENSED",
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contracts...artifacts...ArtProjects.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...ArtProjects_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [
			{
				"inputs": [],
				"stateMutability": "nonpayable",
				"type": "constructor"
			},
			{
				"anonymous": false,
				"inputs": [
					{
						"indexed": true,
						"internalType": "address",
						"name": "previousOwner",
						"type": "address"
					},
					{
						"indexed": true,
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "OwnershipTransferred",
				"type": "event"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "_artistAddress",
						"type": "address"
					},
					{
						"internalType": "string",
						"name": "_name",
						"type": "string"
					},
					{
						"internalType": "string",
						"name": "_description",
						"type": "string"
					},
					{
						"internalType": "uint256",
						"name": "_targetFundingAmount",
						"type": "uint256"
					}
				],
				"name": "addProject",
				"outputs": [
					{
						"components": [
							{
								"internalType": "uint256",
								"name": "id",
								"type": "uint256"
							},
							{
								"internalType": "address",
								"name": "artistAddress",
								"type": "address"
							},
							{
								"internalType": "string",
								"name": "name",
								"type": "string"
							},
							{
								"internalType": "string",
								"name": "description",
								"type": "string"
							},
							{
								"internalType": "uint256",
								"name": "targetFundingAmount",
								"type": "uint256"
							},
							{
								"internalType": "uint256",
								"name": "currentFundingAmount",
								"type": "uint256"
							}
						],
						"internalType": "struct SLib.Project",
						"name": "project",
						"type": "tuple"
					}
				],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "uint256",
						"name": "id",
						"type": "uint256"
					}
				],
				"name": "checkIsProjectExist",
				"outputs": [
					{
						"internalType": "bool",
						"name": "",
						"type": "bool"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "uint256",
						"name": "id",
						"type": "uint256"
					}
				],
				"name": "getProjectById",
				"outputs": [
					{
						"components": [
							{
								"internalType": "uint256",
								"name": "id",
								"type": "uint256"
							},
							{
								"internalType": "address",
								"name": "artistAddress",
								"type": "address"
							},
							{
								"internalType": "string",
								"name": "name",
								"type": "string"
							},
							{
								"internalType": "string",
								"name": "description",
								"type": "string"
							},
							{
								"internalType": "uint256",
								"name": "targetFundingAmount",
								"type": "uint256"
							},
							{
								"internalType": "uint256",
								"name": "currentFundingAmount",
								"type": "uint256"
							}
						],
						"internalType": "struct SLib.Project",
						"name": "project",
						"type": "tuple"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "getProjectSize",
				"outputs": [
					{
						"internalType": "uint256",
						"name": "",
						"type": "uint256"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "owner",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "renounceOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "transferOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			}
		],
		"devdoc": {
			"kind": "dev",
			"methods": {
				"owner()": {
					"details": "Returns the address of the current owner."
				},
				"renounceOwnership()": {
					"details": "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."
				},
				"transferOwnership(address)": {
					"details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
				}
			},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "ArtProjects"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
		"contracts/ArtProject.sol": {
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		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol": {
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		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Context.sol": {
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				"dweb:/ipfs/QmRK2Y5Yc6BK7tGKkgsgn3aJEQGi5aakeSPZvS65PV8Xp3"
			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol": {
			"keccak256": "0xf0018c2440fbe238dd3a8732fa8e17a0f9dce84d31451dc8a32f6d62b349c9f1",
			"license": "MIT",
			"urls": [
				"bzz-raw://59e1c62884d55b70f3ae5432b44bb3166ad71ae3acd19c57ab6ddc3c87c325ee",
				"dweb:/ipfs/QmezuXg5GK5oeA4F91EZhozBFekhq5TD966bHPH18cCqhu"
			]
		}
	},
	"version": 1
}

contracts...artifacts...Ballot.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...Ballot_metadata.json

{
	"compiler": {
		"version": "0.8.5+commit.a4f2e591"
	},
	"language": "Solidity",
	"output": {
		"abi": [
			{
				"inputs": [
					{
						"internalType": "bytes32[]",
						"name": "proposalNames",
						"type": "bytes32[]"
					}
				],
				"stateMutability": "nonpayable",
				"type": "constructor"
			},
			{
				"inputs": [],
				"name": "chairperson",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "to",
						"type": "address"
					}
				],
				"name": "delegate",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "voter",
						"type": "address"
					}
				],
				"name": "giveRightToVote",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "uint256",
						"name": "",
						"type": "uint256"
					}
				],
				"name": "proposals",
				"outputs": [
					{
						"internalType": "bytes32",
						"name": "name",
						"type": "bytes32"
					},
					{
						"internalType": "uint256",
						"name": "voteCount",
						"type": "uint256"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "uint256",
						"name": "proposal",
						"type": "uint256"
					}
				],
				"name": "vote",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"name": "voters",
				"outputs": [
					{
						"internalType": "uint256",
						"name": "weight",
						"type": "uint256"
					},
					{
						"internalType": "bool",
						"name": "voted",
						"type": "bool"
					},
					{
						"internalType": "address",
						"name": "delegate",
						"type": "address"
					},
					{
						"internalType": "uint256",
						"name": "vote",
						"type": "uint256"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "winnerName",
				"outputs": [
					{
						"internalType": "bytes32",
						"name": "winnerName_",
						"type": "bytes32"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "winningProposal",
				"outputs": [
					{
						"internalType": "uint256",
						"name": "winningProposal_",
						"type": "uint256"
					}
				],
				"stateMutability": "view",
				"type": "function"
			}
		],
		"devdoc": {
			"details": "Implements voting process along with vote delegation",
			"kind": "dev",
			"methods": {
				"constructor": {
					"details": "Create a new ballot to choose one of 'proposalNames'.",
					"params": {
						"proposalNames": "names of proposals"
					}
				},
				"delegate(address)": {
					"details": "Delegate your vote to the voter 'to'.",
					"params": {
						"to": "address to which vote is delegated"
					}
				},
				"giveRightToVote(address)": {
					"details": "Give 'voter' the right to vote on this ballot. May only be called by 'chairperson'.",
					"params": {
						"voter": "address of voter"
					}
				},
				"vote(uint256)": {
					"details": "Give your vote (including votes delegated to you) to proposal 'proposals[proposal].name'.",
					"params": {
						"proposal": "index of proposal in the proposals array"
					}
				},
				"winnerName()": {
					"details": "Calls winningProposal() function to get the index of the winner contained in the proposals array and then",
					"returns": {
						"winnerName_": "the name of the winner"
					}
				},
				"winningProposal()": {
					"details": "Computes the winning proposal taking all previous votes into account.",
					"returns": {
						"winningProposal_": "index of winning proposal in the proposals array"
					}
				}
			},
			"title": "Ballot",
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/3_Ballot.sol": "Ballot"
		},
		"evmVersion": "berlin",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
		"contracts/3_Ballot.sol": {
			"keccak256": "0xdd897b48a563d1d32369fdb327187dfcd2660159cfcd3787196bb6be6a312c8d",
			"license": "GPL-3.0",
			"urls": [
				"bzz-raw://551d7a6d3e2abc66a7b37fbd8b0e4c07b43c72c3b55958e66ac421348311fed4",
				"dweb:/ipfs/Qmd4XV9j79GPfv5cgVsg62vKzaLuf6igx7VSW2BKaUyF3w"
			]
		}
	},
	"version": 1
}

contracts...artifacts...Item.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...Item_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [
			{
				"anonymous": false,
				"inputs": [
					{
						"indexed": true,
						"internalType": "address",
						"name": "previousOwner",
						"type": "address"
					},
					{
						"indexed": true,
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "OwnershipTransferred",
				"type": "event"
			},
			{
				"inputs": [],
				"name": "owner",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "renounceOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "transferOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			}
		],
		"devdoc": {
			"kind": "dev",
			"methods": {
				"owner()": {
					"details": "Returns the address of the current owner."
				},
				"renounceOwnership()": {
					"details": "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."
				},
				"transferOwnership(address)": {
					"details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
				}
			},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "Item"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
		"contracts/ArtProject.sol": {
			"keccak256": "0xfbcf9a178813c19e18c5ebd694d9c2bcae36bef25e41065cbb69937fe8705a7a",
			"license": "UNLICENSED",
			"urls": [
				"bzz-raw://46a2fca85e39b63698eb7f268ff6e072339f8cd619b044c7d00ddb8f3f1f2c8c",
				"dweb:/ipfs/QmRcPrynTBQ8SvmHQPSttCSVAbJvhRbZAqLQU6fPHaZHUR"
			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol": {
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			"license": "MIT",
			"urls": [
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			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Context.sol": {
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			"license": "MIT",
			"urls": [
				"bzz-raw://6df0ddf21ce9f58271bdfaa85cde98b200ef242a05a3f85c2bc10a8294800a92",
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			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol": {
			"keccak256": "0xf0018c2440fbe238dd3a8732fa8e17a0f9dce84d31451dc8a32f6d62b349c9f1",
			"license": "MIT",
			"urls": [
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	"version": 1
}

contracts...artifacts...ItemStora.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...ItemStora_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [
			{
				"anonymous": false,
				"inputs": [
					{
						"indexed": true,
						"internalType": "address",
						"name": "previousOwner",
						"type": "address"
					},
					{
						"indexed": true,
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "OwnershipTransferred",
				"type": "event"
			},
			{
				"inputs": [],
				"name": "owner",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "renounceOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "transferOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			}
		],
		"devdoc": {
			"kind": "dev",
			"methods": {
				"owner()": {
					"details": "Returns the address of the current owner."
				},
				"renounceOwnership()": {
					"details": "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."
				},
				"transferOwnership(address)": {
					"details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
				}
			},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "ItemStora"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
		"contracts/ArtProject.sol": {
			"keccak256": "0x03b9f91409ce67832e32ac2daa3d095775d5747be2ca52d2f78b87c9c86ffcc6",
			"license": "UNLICENSED",
			"urls": [
				"bzz-raw://646cf124afcb013b79619782eb01d52efd524861d655035e6ef1855528b02668",
				"dweb:/ipfs/QmScYBxZsXpaBwkFVgNsxQCcxLhv9oPuGRWX6VbCyXCok2"
			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol": {
			"keccak256": "0x24e0364e503a9bbde94c715d26573a76f14cd2a202d45f96f52134ab806b67b9",
			"license": "MIT",
			"urls": [
				"bzz-raw://e12cbaa7378fd9b62280e4e1d164bedcb4399ce238f5f98fc0eefb7e50577981",
				"dweb:/ipfs/QmXRoFGUgfsaRkoPT5bxNMtSayKTQ8GZATLPXf69HcRA51"
			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Context.sol": {
			"keccak256": "0xe2e337e6dde9ef6b680e07338c493ebea1b5fd09b43424112868e9cc1706bca7",
			"license": "MIT",
			"urls": [
				"bzz-raw://6df0ddf21ce9f58271bdfaa85cde98b200ef242a05a3f85c2bc10a8294800a92",
				"dweb:/ipfs/QmRK2Y5Yc6BK7tGKkgsgn3aJEQGi5aakeSPZvS65PV8Xp3"
			]
		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol": {
			"keccak256": "0xf0018c2440fbe238dd3a8732fa8e17a0f9dce84d31451dc8a32f6d62b349c9f1",
			"license": "MIT",
			"urls": [
				"bzz-raw://59e1c62884d55b70f3ae5432b44bb3166ad71ae3acd19c57ab6ddc3c87c325ee",
				"dweb:/ipfs/QmezuXg5GK5oeA4F91EZhozBFekhq5TD966bHPH18cCqhu"
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	},
	"version": 1
}

contracts...artifacts...ItemStorage.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...ItemStorage_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "_artProjectsAddress",
						"type": "address"
					},
					{
						"internalType": "address",
						"name": "_artistMembersAddress",
						"type": "address"
					}
				],
				"stateMutability": "nonpayable",
				"type": "constructor"
			},
			{
				"anonymous": false,
				"inputs": [
					{
						"indexed": true,
						"internalType": "address",
						"name": "previousOwner",
						"type": "address"
					},
					{
						"indexed": true,
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "OwnershipTransferred",
				"type": "event"
			},
			{
				"inputs": [
					{
						"internalType": "uint256",
						"name": "projectId",
						"type": "uint256"
					}
				],
				"name": "fundAProject",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "string",
						"name": "_name",
						"type": "string"
					},
					{
						"internalType": "string",
						"name": "_description",
						"type": "string"
					},
					{
						"internalType": "uint256",
						"name": "_targetFundingAmount",
						"type": "uint256"
					}
				],
				"name": "kickStartProject",
				"outputs": [
					{
						"components": [
							{
								"internalType": "uint256",
								"name": "id",
								"type": "uint256"
							},
							{
								"internalType": "address",
								"name": "artistAddress",
								"type": "address"
							},
							{
								"internalType": "string",
								"name": "name",
								"type": "string"
							},
							{
								"internalType": "string",
								"name": "description",
								"type": "string"
							},
							{
								"internalType": "uint256",
								"name": "targetFundingAmount",
								"type": "uint256"
							},
							{
								"internalType": "uint256",
								"name": "currentFundingAmount",
								"type": "uint256"
							}
						],
						"internalType": "struct SLib.Project",
						"name": "project",
						"type": "tuple"
					}
				],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "owner",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "string",
						"name": "_name",
						"type": "string"
					},
					{
						"internalType": "string",
						"name": "_iconURL",
						"type": "string"
					}
				],
				"name": "registerAsArtist",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "renounceOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "transferOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			}
		],
		"devdoc": {
			"kind": "dev",
			"methods": {
				"owner()": {
					"details": "Returns the address of the current owner."
				},
				"renounceOwnership()": {
					"details": "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."
				},
				"transferOwnership(address)": {
					"details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
				}
			},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "ItemStorage"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
		"contracts/ArtProject.sol": {
			"keccak256": "0x328c0c21fe1cb6cb2e0c7498117233087d55fcbcfc20e2ac23b814a7de8290a1",
			"license": "UNLICENSED",
			"urls": [
				"bzz-raw://dd1ab4bb9b6cbcae104d5ae4737f0280a8e45b6c32e310355522cf16e9f85675",
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contracts...artifacts...Owner.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...Owner_metadata.json

{
	"compiler": {
		"version": "0.8.5+commit.a4f2e591"
	},
	"language": "Solidity",
	"output": {
		"abi": [
			{
				"inputs": [],
				"stateMutability": "nonpayable",
				"type": "constructor"
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				"inputs": [
					{
						"indexed": true,
						"internalType": "address",
						"name": "oldOwner",
						"type": "address"
					},
					{
						"indexed": true,
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "OwnerSet",
				"type": "event"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "changeOwner",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "getOwner",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			}
		],
		"devdoc": {
			"details": "Set & change owner",
			"kind": "dev",
			"methods": {
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					"details": "Change owner",
					"params": {
						"newOwner": "address of new owner"
					}
				},
				"constructor": {
					"details": "Set contract deployer as owner"
				},
				"getOwner()": {
					"details": "Return owner address ",
					"returns": {
						"_0": "address of owner"
					}
				}
			},
			"title": "Owner",
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
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			"contracts/2_Owner.sol": "Owner"
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		"libraries": {},
		"metadata": {
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		"optimizer": {
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			"runs": 200
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		"remappings": []
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			]
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	},
	"version": 1
}

contracts...artifacts...ProjectIndex.json

// this line is added to create a gist. Empty file is not allowed.

contracts...artifacts...ProjectIndex_metadata.json

{
	"compiler": {
		"version": "0.8.7+commit.e28d00a7"
	},
	"language": "Solidity",
	"output": {
		"abi": [
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				"inputs": [
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						"internalType": "address",
						"name": "previousOwner",
						"type": "address"
					},
					{
						"indexed": true,
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "OwnershipTransferred",
				"type": "event"
			},
			{
				"inputs": [],
				"name": "owner",
				"outputs": [
					{
						"internalType": "address",
						"name": "",
						"type": "address"
					}
				],
				"stateMutability": "view",
				"type": "function"
			},
			{
				"inputs": [],
				"name": "renounceOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			},
			{
				"inputs": [
					{
						"internalType": "address",
						"name": "newOwner",
						"type": "address"
					}
				],
				"name": "transferOwnership",
				"outputs": [],
				"stateMutability": "nonpayable",
				"type": "function"
			}
		],
		"devdoc": {
			"kind": "dev",
			"methods": {
				"owner()": {
					"details": "Returns the address of the current owner."
				},
				"renounceOwnership()": {
					"details": "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."
				},
				"transferOwnership(address)": {
					"details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
				}
			},
			"version": 1
		},
		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
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	"settings": {
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			]
		},
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			"license": "MIT",
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		}
	},
	"version": 1
}

contracts...artifacts...SLib.json

{
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			"autoDeployLib": true
		},
		"main:1": {
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			"autoDeployLib": true
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		"ropsten:3": {
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			"autoDeployLib": true
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		"rinkeby:4": {
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			"autoDeployLib": true
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			"autoDeployLib": true
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		"görli:5": {
			"linkReferences": {},
			"autoDeployLib": true
		},
		"Custom": {
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			"autoDeployLib": true
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	"data": {
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			"functionDebugData": {},
			"generatedSources": [],
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		"gasEstimates": {
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				"totalCost": "17297"
			}
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		"methodIdentifiers": {}
	},
	"abi": []
}

contracts...artifacts...SLib_metadata.json

{
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	},
	"language": "Solidity",
	"output": {
		"abi": [],
		"devdoc": {
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			"methods": {},
			"version": 1
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		"userdoc": {
			"kind": "user",
			"methods": {},
			"version": 1
		}
	},
	"settings": {
		"compilationTarget": {
			"contracts/ArtProject.sol": "SLib"
		},
		"evmVersion": "london",
		"libraries": {},
		"metadata": {
			"bytecodeHash": "ipfs"
		},
		"optimizer": {
			"enabled": false,
			"runs": 200
		},
		"remappings": []
	},
	"sources": {
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			"keccak256": "0x328c0c21fe1cb6cb2e0c7498117233087d55fcbcfc20e2ac23b814a7de8290a1",
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			]
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			"license": "MIT",
			"urls": [
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		},
		"https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol": {
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	"version": 1
}

contracts...artifacts...Storage_metadata.json

// this line is added to create a gist. Empty file is not allowed.

contracts...ArtProject.sol

// SPDX-License-Identifier: UNLICENSED

pragma solidity ^0.8.5;
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol";
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol";
import "./PlatformToken.sol";

library SLib {
    struct Artist{
        uint id;
        address artistAddress;
        string name;
        string iconURL;
    }  

    struct Project{
        uint id;
        address artistAddress;
        string name;
        string description;
        uint targetFundingAmount;
        uint currentFundingAmount;
        mapping(address => uint) fundAmount;
        address [] funderList;
        uint totalFunder;
    }
}

contract ArtistMembers is Ownable{
    // struct Artist{
    //     uint id;
    //     address artistAddress;
    //     string name;
    //     string iconURL;
    // }

    mapping(address => bool) private artistExist; //check projectId return bool
    mapping(address => uint) private artistIdIndex; //check projectId return bool
    SLib.Artist[] private artistList;
    uint private artistCount;

    modifier isArtistIdExist(uint id) {
        require(id > 0 && id <= artistCount, "artist Id must less than artistCount");
        _;
    }

    modifier isArtistAddressExist(address _address) {
        require(artistExist[_address], "artist Id must less than artistCount");
        _;
    }

    event ArtistAdd(address indexed artistAddress);

    constructor (){
        artistCount = 0;
    }

    function addArtist (address _address, string memory _name, string memory _iconURL) external  returns (SLib.Artist memory artist){
        require(!artistExist[_address], "Caller is artist already");
        artistCount ++;
        artistExist[_address] = true;
        SLib.Artist memory newArtist = SLib.Artist({
            id:artistCount,
            artistAddress:_address,
            name:_name,
            iconURL:_iconURL
        });
        artistList.push(newArtist);
        artistIdIndex[_address] = artistCount - 1;

        // omit event

        return newArtist;
    }

    function checkIsArtistExist(address _address) public view returns (bool) {
        return artistExist[_address];
    }

    function getArtistSize() public view returns (uint) {
        return artistCount;
    }

    function getArtistById(uint id) isArtistIdExist(id) public view returns (SLib.Artist memory artist){
        return artistList[id - 1];
    }

    function getArtistByAddress(address _address) isArtistAddressExist(_address) public view returns (SLib.Artist memory artist){
        uint artistIndex = artistIdIndex[_address];
        return artistList[artistIndex];
    }
}



contract ArtProjects is Ownable{

    // struct Project{
    //     uint id;
    //     address artistAddress;
    //     string name;
    //     string description;
    //     uint targetFundingAmount;
    //     uint currentFundingAmount;
    // }

    mapping(uint => bool) private projectExist; //check projectId return bool
    SLib.Project[] private projectList;
    uint private projectCount = 0;
    
    modifier isProjectIdExist(uint id) {
        require(id > 0 && id <= projectCount, "project Id must less than projectCount");
        _;
    }

    constructor(){

    }

    function addProject(address _artistAddress, string memory _name, string memory _description, uint _targetFundingAmount) external  returns (SLib.Project memory project){
        // projectExist[msg.sender] = true;
        projectCount ++;
        SLib.Project memory newProject = SLib.Project({
            id:projectCount,
            artistAddress: _artistAddress,
            name:_name,
            description:_description,
            targetFundingAmount:_targetFundingAmount,
            currentFundingAmount: 0
        });
        projectList.push(newProject);
        
        return newProject;
    }

    function checkIsProjectExist(uint id) public view returns (bool) {
        return projectExist[id];
    }

    function getProjectSize() public view returns (uint) {
        return projectCount;
    }

    function getProjectById(uint id) isProjectIdExist(id) public view returns (SLib.Project memory project){
        return projectList[id - 1];
    }
}

contract ProjectFund is Ownable{

    ArtProjects artProjects;
    ArtistMembers artistMembers;
    PlatformToken platformToken;

    
    constructor(address tokenAddress, address _artProjectsAddress, address _artistMembersAddress){
        artProjects = ArtProjects(_artProjectsAddress);
        artistMembers = ArtistMembers(_artistMembersAddress);
    }

    function registerAsArtist(string memory _name, string memory _iconURL) public {
        artistMembers.addArtist(msg.sender, _name, _iconURL);
        // address _address, string memory _name, string memory _iconURL
    }

    function kickStartProject(string memory _name, string memory _description, uint _targetFundingAmount) public returns (SLib.Project memory project) {
        require(artistMembers.checkIsArtistExist(msg.sender));
        // address _artistAddress, string memory _name, string memory _description, uint _targetFundingAmount
        return artProjects.addProject(msg.sender, _name, _description, _targetFundingAmount);

    }

    function fundAProject(uint projectId, uint amount ) public {

    }
}

contracts...PlatformToken.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.5 <0.9.0;

import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/ERC20Capped.sol";
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol";


contract PlatformToken is ERC20Capped , Ownable {

    constructor(uint256 cap) 
        ERC20("Platform Token", "PTK")
        ERC20Capped(cap){
    }

    function mint(address to, uint amount) external onlyOwner{
        _mint(to, amount);
    }

    // function burn(uint amount) external onlyOwner{
    //     _burn(msg.sender, amount);
    // }
}

scripts...deploy_ethers.js

// Right click on the script name and hit "Run" to execute
(async () => {
    try {
        console.log('Running deployWithEthers script...')
    
        const contractName = 'Storage' // Change this for other contract
        const constructorArgs = []    // Put constructor args (if any) here for your contract

        // Note that the script needs the ABI which is generated from the compilation artifact.
        // Make sure contract is compiled and artifacts are generated
        const artifactsPath = `browser/contracts/artifacts/${contractName}.json` // Change this for different path
    
        const metadata = JSON.parse(await remix.call('fileManager', 'getFile', artifactsPath))
        // 'web3Provider' is a remix global variable object
        const signer = (new ethers.providers.Web3Provider(web3Provider)).getSigner()
    
        let factory = new ethers.ContractFactory(metadata.abi, metadata.data.bytecode.object, signer);
    
        let contract = await factory.deploy(...constructorArgs);
    
        console.log('Contract Address: ', contract.address);
    
        // The contract is NOT deployed yet; we must wait until it is mined
        await contract.deployed()
        console.log('Deployment successful.')
    } catch (e) {
        console.log(e.message)
    }
})()

scripts...deploy_web3.js

// Right click on the script name and hit "Run" to execute
(async () => {
    try {
        console.log('Running deployWithWeb3 script...')
        
        const contractName = 'Storage' // Change this for other contract
        const constructorArgs = []    // Put constructor args (if any) here for your contract
    
        // Note that the script needs the ABI which is generated from the compilation artifact.
        // Make sure contract is compiled and artifacts are generated
        const artifactsPath = `browser/contracts/artifacts/${contractName}.json` // Change this for different path

        const metadata = JSON.parse(await remix.call('fileManager', 'getFile', artifactsPath))
        const accounts = await web3.eth.getAccounts()
    
        let contract = new web3.eth.Contract(metadata.abi)
    
        contract = contract.deploy({
            data: metadata.data.bytecode.object,
            arguments: constructorArgs
        })
    
        const newContractInstance = await contract.send({
            from: accounts[0],
            gas: 1500000,
            gasPrice: '30000000000'
        })
        console.log('Contract deployed at address: ', newContractInstance.options.address)
    } catch (e) {
        console.log(e.message)
    }
  })()

tests...4_Ballot_test.sol

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;
import "remix_tests.sol"; // this import is automatically injected by Remix.
import "../contracts/3_Ballot.sol";

contract BallotTest {
   
    bytes32[] proposalNames;
   
    Ballot ballotToTest;
    function beforeAll () public {
        proposalNames.push(bytes32("candidate1"));
        ballotToTest = new Ballot(proposalNames);
    }
    
    function checkWinningProposal () public {
        ballotToTest.vote(0);
        Assert.equal(ballotToTest.winningProposal(), uint(0), "proposal at index 0 should be the winning proposal");
        Assert.equal(ballotToTest.winnerName(), bytes32("candidate1"), "candidate1 should be the winner name");
    }
    
    function checkWinninProposalWithReturnValue () public view returns (bool) {
        return ballotToTest.winningProposal() == 0;
    }
}