ABT or Soul Bound tokens are non-transferrable tokens that - once assigned cannot be transferred to any other accounts. The holder of the token can burn the token. These tokens can be used to represent identity.

1. IERC165
2. IERC721Metadata
3. IERC4973

Registers the IERC4973, IERC721Metadata interface ID to the ERC165Storage contract and sets the deployer of the contract as the admin.

function name() public view returns(string memory)

Returns the name of the token.

function symbol() public view returns(string memory)

Returns the symbol of the token.

function tokenId() public view returns(uint256)

Returns the current tokenId that is minted.

function admin() public view returns(address)

Returns the current admin of the contract.

function changeAdmin(address newAdmin) external onlyAdmin

Allows the admin of the contract to change the current admin role.

function mint(address _to, string memory _uri) external onlyAdmin

Allows the admin of the contract to mint new token to the _to address.

function burn(uint256 _tokenId) external

Allows the admin of the contract or the owner of the token to burn the token.

function ownerOf(uint256 _tokenId) public view returns (address)

Returns the owner of particular token if it exits.

function tokenURI(uint256 _tokenId) external view returns (string memory)

Returns the uri of particular token if it exits.

forge test

forge script script/SFT.s.sol --rpc-url $RINKEBY_RPC_URL --private-key $PRIVATE_KEY --broadcast -vvvv