ETH Price: $3,107.60 (-0.64%)
Gas: 2 Gwei

Contract

0x01eD068115ba99b94c65c7791D4Ac5Dee1253835
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Token Holdings

Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Value
Set Approval For...162930522022-12-29 21:18:35506 days ago1672348715IN
FOAM: Treasure Hunt
0 ETH0.000826117.85623127
Set Approval For...149748772022-06-16 18:45:12702 days ago1655405112IN
FOAM: Treasure Hunt
0 ETH0.001770838.27601328
Transfer From137435012021-12-05 2:52:35896 days ago1638672755IN
FOAM: Treasure Hunt
0 ETH0.0050137687.92838116
Set Approval For...131977812021-09-10 11:38:19981 days ago1631273899IN
FOAM: Treasure Hunt
0 ETH0.0035778677.19560403
Set Approval For...122350612021-04-14 0:47:211131 days ago1618361241IN
FOAM: Treasure Hunt
0 ETH0.0043696597
Set Approval For...120638712021-03-18 16:59:491157 days ago1616086789IN
FOAM: Treasure Hunt
0 ETH0.00991056220
Set Approval For...97013442020-03-19 9:37:281521 days ago1584610648IN
FOAM: Treasure Hunt
0 ETH0.000271410.5
Set Approval For...97013442020-03-19 9:37:281521 days ago1584610648IN
FOAM: Treasure Hunt
0 ETH0.000271410.5
Set Approval For...97013442020-03-19 9:37:281521 days ago1584610648IN
FOAM: Treasure Hunt
0 ETH0.00047310.5
Set Approval For...77035182019-05-05 22:10:081840 days ago1557094208IN
FOAM: Treasure Hunt
0 ETH0.000045741
Set Approval For...76964752019-05-04 19:46:141841 days ago1556999174IN
FOAM: Treasure Hunt
0 ETH0.000274486
Set Approval For...76549072019-04-28 8:43:021848 days ago1556440982IN
FOAM: Treasure Hunt
0 ETH0.000228745
Set Approval For...74917672019-04-02 22:58:241873 days ago1554245904IN
FOAM: Treasure Hunt
0 ETH0.000228745
Transfer From73941392019-03-18 17:07:241888 days ago1552928844IN
FOAM: Treasure Hunt
0 ETH0.000072322
Set Approval For...72574962019-02-23 13:21:331911 days ago1550928093IN
FOAM: Treasure Hunt
0 ETH0.000365478
Mint With Token ...72203232019-02-14 18:06:401920 days ago1550167600IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72203182019-02-14 18:03:231920 days ago1550167403IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72203162019-02-14 18:02:581920 days ago1550167378IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72203092019-02-14 18:00:481920 days ago1550167248IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72203022019-02-14 17:57:511920 days ago1550167071IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72202992019-02-14 17:56:251920 days ago1550166985IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72202872019-02-14 17:52:481920 days ago1550166768IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72151742019-02-13 12:24:091921 days ago1550060649IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72151692019-02-13 12:20:541921 days ago1550060454IN
FOAM: Treasure Hunt
0 ETH0.000768955
Mint With Token ...72151622019-02-13 12:18:011921 days ago1550060281IN
FOAM: Treasure Hunt
0 ETH0.000768955
View all transactions

View more zero value Internal Transactions in Advanced View mode

Advanced mode:
Loading...
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
TreasureHunt

Compiler Version
v0.4.24+commit.e67f0147

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2018-12-17
*/

pragma solidity ^0.4.24;

/**
 * @title IERC165
 * @dev https://github.com/ethereum/EIPs/blob/master/EIPS/eip-165.md
 */
interface IERC165 {

  /**
   * @notice Query if a contract implements an interface
   * @param interfaceId The interface identifier, as specified in ERC-165
   * @dev Interface identification is specified in ERC-165. This function
   * uses less than 30,000 gas.
   */
  function supportsInterface(bytes4 interfaceId)
    external
    view
    returns (bool);
}


/**
 * @title Roles
 * @dev Library for managing addresses assigned to a Role.
 */
library Roles {
  struct Role {
    mapping (address => bool) bearer;
  }

  /**
   * @dev give an account access to this role
   */
  function add(Role storage role, address account) internal {
    require(account != address(0));
    require(!has(role, account));

    role.bearer[account] = true;
  }

  /**
   * @dev remove an account's access to this role
   */
  function remove(Role storage role, address account) internal {
    require(account != address(0));
    require(has(role, account));

    role.bearer[account] = false;
  }

  /**
   * @dev check if an account has this role
   * @return bool
   */
  function has(Role storage role, address account)
    internal
    view
    returns (bool)
  {
    require(account != address(0));
    return role.bearer[account];
  }
}



/**
 * @title ERC165
 * @author Matt Condon (@shrugs)
 * @dev Implements ERC165 using a lookup table.
 */
contract ERC165 is IERC165 {

  bytes4 private constant _InterfaceId_ERC165 = 0x01ffc9a7;
  /**
   * 0x01ffc9a7 ===
   *   bytes4(keccak256('supportsInterface(bytes4)'))
   */

  /**
   * @dev a mapping of interface id to whether or not it's supported
   */
  mapping(bytes4 => bool) private _supportedInterfaces;

  /**
   * @dev A contract implementing SupportsInterfaceWithLookup
   * implement ERC165 itself
   */
  constructor()
    internal
  {
    _registerInterface(_InterfaceId_ERC165);
  }

  /**
   * @dev implement supportsInterface(bytes4) using a lookup table
   */
  function supportsInterface(bytes4 interfaceId)
    external
    view
    returns (bool)
  {
    return _supportedInterfaces[interfaceId];
  }

  /**
   * @dev internal method for registering an interface
   */
  function _registerInterface(bytes4 interfaceId)
    internal
  {
    require(interfaceId != 0xffffffff);
    _supportedInterfaces[interfaceId] = true;
  }
}


contract MinterRole {
  using Roles for Roles.Role;

  event MinterAdded(address indexed account);
  event MinterRemoved(address indexed account);

  Roles.Role private minters;

  constructor() internal {
    _addMinter(msg.sender);
  }

  modifier onlyMinter() {
    require(isMinter(msg.sender));
    _;
  }

  function isMinter(address account) public view returns (bool) {
    return minters.has(account);
  }

  function addMinter(address account) public onlyMinter {
    _addMinter(account);
  }

  function renounceMinter() public {
    _removeMinter(msg.sender);
  }

  function _addMinter(address account) internal {
    minters.add(account);
    emit MinterAdded(account);
  }

  function _removeMinter(address account) internal {
    minters.remove(account);
    emit MinterRemoved(account);
  }
}










/**
 * @title ERC721 Non-Fungible Token Standard basic interface
 * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 */
contract IERC721 is IERC165 {

  event Transfer(
    address indexed from,
    address indexed to,
    uint256 indexed tokenId
  );
  event Approval(
    address indexed owner,
    address indexed approved,
    uint256 indexed tokenId
  );
  event ApprovalForAll(
    address indexed owner,
    address indexed operator,
    bool approved
  );

  function balanceOf(address owner) public view returns (uint256 balance);
  function ownerOf(uint256 tokenId) public view returns (address owner);

  function approve(address to, uint256 tokenId) public;
  function getApproved(uint256 tokenId)
    public view returns (address operator);

  function setApprovalForAll(address operator, bool _approved) public;
  function isApprovedForAll(address owner, address operator)
    public view returns (bool);

  function transferFrom(address from, address to, uint256 tokenId) public;
  function safeTransferFrom(address from, address to, uint256 tokenId)
    public;

  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId,
    bytes data
  )
    public;
}



/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
contract IERC721Receiver {
  /**
   * @notice Handle the receipt of an NFT
   * @dev The ERC721 smart contract calls this function on the recipient
   * after a `safeTransfer`. This function MUST return the function selector,
   * otherwise the caller will revert the transaction. The selector to be
   * returned can be obtained as `this.onERC721Received.selector`. This
   * function MAY throw to revert and reject the transfer.
   * Note: the ERC721 contract address is always the message sender.
   * @param operator The address which called `safeTransferFrom` function
   * @param from The address which previously owned the token
   * @param tokenId The NFT identifier which is being transferred
   * @param data Additional data with no specified format
   * @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
   */
  function onERC721Received(
    address operator,
    address from,
    uint256 tokenId,
    bytes data
  )
    public
    returns(bytes4);
}



/**
 * @title SafeMath
 * @dev Math operations with safety checks that revert on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, reverts on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
    // benefit is lost if 'b' is also tested.
    // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
    if (a == 0) {
      return 0;
    }

    uint256 c = a * b;
    require(c / a == b);

    return c;
  }

  /**
  * @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b > 0); // Solidity only automatically asserts when dividing by 0
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    return c;
  }

  /**
  * @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b <= a);
    uint256 c = a - b;

    return c;
  }

  /**
  * @dev Adds two numbers, reverts on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    require(c >= a);

    return c;
  }

  /**
  * @dev Divides two numbers and returns the remainder (unsigned integer modulo),
  * reverts when dividing by zero.
  */
  function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b != 0);
    return a % b;
  }
}



/**
 * Utility library of inline functions on addresses
 */
library Address {

  /**
   * Returns whether the target address is a contract
   * @dev This function will return false if invoked during the constructor of a contract,
   * as the code is not actually created until after the constructor finishes.
   * @param account address of the account to check
   * @return whether the target address is a contract
   */
  function isContract(address account) internal view returns (bool) {
    uint256 size;
    // XXX Currently there is no better way to check if there is a contract in an address
    // than to check the size of the code at that address.
    // See https://ethereum.stackexchange.com/a/14016/36603
    // for more details about how this works.
    // TODO Check this again before the Serenity release, because all addresses will be
    // contracts then.
    // solium-disable-next-line security/no-inline-assembly
    assembly { size := extcodesize(account) }
    return size > 0;
  }

}



/**
 * @title ERC721 Non-Fungible Token Standard basic implementation
 * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 */
contract ERC721 is ERC165, IERC721 {

  using SafeMath for uint256;
  using Address for address;

  // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
  // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`
  bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;

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

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

  // Mapping from owner to number of owned token
  mapping (address => uint256) private _ownedTokensCount;

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

  bytes4 private constant _InterfaceId_ERC721 = 0x80ac58cd;
  /*
   * 0x80ac58cd ===
   *   bytes4(keccak256('balanceOf(address)')) ^
   *   bytes4(keccak256('ownerOf(uint256)')) ^
   *   bytes4(keccak256('approve(address,uint256)')) ^
   *   bytes4(keccak256('getApproved(uint256)')) ^
   *   bytes4(keccak256('setApprovalForAll(address,bool)')) ^
   *   bytes4(keccak256('isApprovedForAll(address,address)')) ^
   *   bytes4(keccak256('transferFrom(address,address,uint256)')) ^
   *   bytes4(keccak256('safeTransferFrom(address,address,uint256)')) ^
   *   bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)'))
   */

  constructor()
    public
  {
    // register the supported interfaces to conform to ERC721 via ERC165
    _registerInterface(_InterfaceId_ERC721);
  }

  /**
   * @dev Gets the balance of the specified address
   * @param owner address to query the balance of
   * @return uint256 representing the amount owned by the passed address
   */
  function balanceOf(address owner) public view returns (uint256) {
    require(owner != address(0));
    return _ownedTokensCount[owner];
  }

  /**
   * @dev Gets the owner of the specified token ID
   * @param tokenId uint256 ID of the token to query the owner of
   * @return owner address currently marked as the owner of the given token ID
   */
  function ownerOf(uint256 tokenId) public view returns (address) {
    address owner = _tokenOwner[tokenId];
    require(owner != address(0));
    return owner;
  }

  /**
   * @dev Approves another address to transfer the given token ID
   * The zero address indicates there is no approved address.
   * There can only be one approved address per token at a given time.
   * Can only be called by the token owner or an approved operator.
   * @param to address to be approved for the given token ID
   * @param tokenId uint256 ID of the token to be approved
   */
  function approve(address to, uint256 tokenId) public {
    address owner = ownerOf(tokenId);
    require(to != owner);
    require(msg.sender == owner || isApprovedForAll(owner, msg.sender));

    _tokenApprovals[tokenId] = to;
    emit Approval(owner, to, tokenId);
  }

  /**
   * @dev Gets the approved address for a token ID, or zero if no address set
   * Reverts if the token ID does not exist.
   * @param tokenId uint256 ID of the token to query the approval of
   * @return address currently approved for the given token ID
   */
  function getApproved(uint256 tokenId) public view returns (address) {
    require(_exists(tokenId));
    return _tokenApprovals[tokenId];
  }

  /**
   * @dev Sets or unsets the approval of a given operator
   * An operator is allowed to transfer all tokens of the sender on their behalf
   * @param to operator address to set the approval
   * @param approved representing the status of the approval to be set
   */
  function setApprovalForAll(address to, bool approved) public {
    require(to != msg.sender);
    _operatorApprovals[msg.sender][to] = approved;
    emit ApprovalForAll(msg.sender, to, approved);
  }

  /**
   * @dev Tells whether an operator is approved by a given owner
   * @param owner owner address which you want to query the approval of
   * @param operator operator address which you want to query the approval of
   * @return bool whether the given operator is approved by the given owner
   */
  function isApprovedForAll(
    address owner,
    address operator
  )
    public
    view
    returns (bool)
  {
    return _operatorApprovals[owner][operator];
  }

  /**
   * @dev Transfers the ownership of a given token ID to another address
   * Usage of this method is discouraged, use `safeTransferFrom` whenever possible
   * Requires the msg sender to be the owner, approved, or operator
   * @param from current owner of the token
   * @param to address to receive the ownership of the given token ID
   * @param tokenId uint256 ID of the token to be transferred
  */
  function transferFrom(
    address from,
    address to,
    uint256 tokenId
  )
    public
  {
    require(_isApprovedOrOwner(msg.sender, tokenId));
    require(to != address(0));

    _clearApproval(from, tokenId);
    _removeTokenFrom(from, tokenId);
    _addTokenTo(to, tokenId);

    emit Transfer(from, to, tokenId);
  }

  /**
   * @dev Safely transfers the ownership of a given token ID to another address
   * If the target address is a contract, it must implement `onERC721Received`,
   * which is called upon a safe transfer, and return the magic value
   * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
   * the transfer is reverted.
   *
   * Requires the msg sender to be the owner, approved, or operator
   * @param from current owner of the token
   * @param to address to receive the ownership of the given token ID
   * @param tokenId uint256 ID of the token to be transferred
  */
  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId
  )
    public
  {
    // solium-disable-next-line arg-overflow
    safeTransferFrom(from, to, tokenId, "");
  }

  /**
   * @dev Safely transfers the ownership of a given token ID to another address
   * If the target address is a contract, it must implement `onERC721Received`,
   * which is called upon a safe transfer, and return the magic value
   * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
   * the transfer is reverted.
   * Requires the msg sender to be the owner, approved, or operator
   * @param from current owner of the token
   * @param to address to receive the ownership of the given token ID
   * @param tokenId uint256 ID of the token to be transferred
   * @param _data bytes data to send along with a safe transfer check
   */
  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId,
    bytes _data
  )
    public
  {
    transferFrom(from, to, tokenId);
    // solium-disable-next-line arg-overflow
    require(_checkOnERC721Received(from, to, tokenId, _data));
  }

  /**
   * @dev Returns whether the specified token exists
   * @param tokenId uint256 ID of the token to query the existence of
   * @return whether the token exists
   */
  function _exists(uint256 tokenId) internal view returns (bool) {
    address owner = _tokenOwner[tokenId];
    return owner != address(0);
  }

  /**
   * @dev Returns whether the given spender can transfer a given token ID
   * @param spender address of the spender to query
   * @param tokenId uint256 ID of the token to be transferred
   * @return bool whether the msg.sender is approved for the given token ID,
   *  is an operator of the owner, or is the owner of the token
   */
  function _isApprovedOrOwner(
    address spender,
    uint256 tokenId
  )
    internal
    view
    returns (bool)
  {
    address owner = ownerOf(tokenId);
    // Disable solium check because of
    // https://github.com/duaraghav8/Solium/issues/175
    // solium-disable-next-line operator-whitespace
    return (
      spender == owner ||
      getApproved(tokenId) == spender ||
      isApprovedForAll(owner, spender)
    );
  }

  /**
   * @dev Internal function to mint a new token
   * Reverts if the given token ID already exists
   * @param to The address that will own the minted token
   * @param tokenId uint256 ID of the token to be minted by the msg.sender
   */
  function _mint(address to, uint256 tokenId) internal {
    require(to != address(0));
    _addTokenTo(to, tokenId);
    emit Transfer(address(0), to, tokenId);
  }

  /**
   * @dev Internal function to burn a specific token
   * Reverts if the token does not exist
   * @param tokenId uint256 ID of the token being burned by the msg.sender
   */
  function _burn(address owner, uint256 tokenId) internal {
    _clearApproval(owner, tokenId);
    _removeTokenFrom(owner, tokenId);
    emit Transfer(owner, address(0), tokenId);
  }

  /**
   * @dev Internal function to add a token ID to the list of a given address
   * Note that this function is left internal to make ERC721Enumerable possible, but is not
   * intended to be called by custom derived contracts: in particular, it emits no Transfer event.
   * @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 _addTokenTo(address to, uint256 tokenId) internal {
    require(_tokenOwner[tokenId] == address(0));
    _tokenOwner[tokenId] = to;
    _ownedTokensCount[to] = _ownedTokensCount[to].add(1);
  }

  /**
   * @dev Internal function to remove a token ID from the list of a given address
   * Note that this function is left internal to make ERC721Enumerable possible, but is not
   * intended to be called by custom derived contracts: in particular, it emits no Transfer event,
   * and doesn't clear approvals.
   * @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 _removeTokenFrom(address from, uint256 tokenId) internal {
    require(ownerOf(tokenId) == from);
    _ownedTokensCount[from] = _ownedTokensCount[from].sub(1);
    _tokenOwner[tokenId] = address(0);
  }

  /**
   * @dev Internal function to invoke `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 whether the call correctly returned the expected magic value
   */
  function _checkOnERC721Received(
    address from,
    address to,
    uint256 tokenId,
    bytes _data
  )
    internal
    returns (bool)
  {
    if (!to.isContract()) {
      return true;
    }
    bytes4 retval = IERC721Receiver(to).onERC721Received(
      msg.sender, from, tokenId, _data);
    return (retval == _ERC721_RECEIVED);
  }

  /**
   * @dev Private function to clear current approval of a given token ID
   * Reverts if the given address is not indeed the owner of the token
   * @param owner owner of the token
   * @param tokenId uint256 ID of the token to be transferred
   */
  function _clearApproval(address owner, uint256 tokenId) private {
    require(ownerOf(tokenId) == owner);
    if (_tokenApprovals[tokenId] != address(0)) {
      _tokenApprovals[tokenId] = address(0);
    }
  }
}





/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 */
contract IERC721Metadata is IERC721 {
  function name() external view returns (string);
  function symbol() external view returns (string);
  function tokenURI(uint256 tokenId) external view returns (string);
}






contract ERC721Metadata is ERC165, ERC721, IERC721Metadata {
  // Token name
  string private _name;

  // Token symbol
  string private _symbol;

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

  bytes4 private constant InterfaceId_ERC721Metadata = 0x5b5e139f;
  /**
   * 0x5b5e139f ===
   *   bytes4(keccak256('name()')) ^
   *   bytes4(keccak256('symbol()')) ^
   *   bytes4(keccak256('tokenURI(uint256)'))
   */

  /**
   * @dev Constructor function
   */
  constructor(string name, string symbol) public {
    _name = name;
    _symbol = symbol;

    // register the supported interfaces to conform to ERC721 via ERC165
    _registerInterface(InterfaceId_ERC721Metadata);
  }

  /**
   * @dev Gets the token name
   * @return string representing the token name
   */
  function name() external view returns (string) {
    return _name;
  }

  /**
   * @dev Gets the token symbol
   * @return string representing the token symbol
   */
  function symbol() external view returns (string) {
    return _symbol;
  }

  /**
   * @dev Returns an URI for a given token ID
   * Throws if the token ID does not exist. May return an empty string.
   * @param tokenId uint256 ID of the token to query
   */
  function tokenURI(uint256 tokenId) external view returns (string) {
    require(_exists(tokenId));
    return _tokenURIs[tokenId];
  }

  /**
   * @dev Internal function to set the token URI for a given token
   * Reverts if the token ID does not exist
   * @param tokenId uint256 ID of the token to set its URI
   * @param uri string URI to assign
   */
  function _setTokenURI(uint256 tokenId, string uri) internal {
    require(_exists(tokenId));
    _tokenURIs[tokenId] = uri;
  }

  /**
   * @dev Internal function to burn a specific token
   * Reverts if the token does not exist
   * @param owner owner of the token to burn
   * @param tokenId uint256 ID of the token being burned by the msg.sender
   */
  function _burn(address owner, uint256 tokenId) internal {
    super._burn(owner, tokenId);

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







/**
 * @title ERC721MetadataMintable
 * @dev ERC721 minting logic with metadata
 */
contract ERC721MetadataMintable is ERC721, ERC721Metadata, MinterRole {
  /**
   * @dev Function to mint tokens
   * @param to The address that will receive the minted tokens.
   * @param tokenId The token id to mint.
   * @param tokenURI The token URI of the minted token.
   * @return A boolean that indicates if the operation was successful.
   */
  function mintWithTokenURI(
    address to,
    uint256 tokenId,
    string tokenURI
  )
    public
    onlyMinter
    returns (bool)
  {
    _mint(to, tokenId);
    _setTokenURI(tokenId, tokenURI);
    return true;
  }
}


contract TreasureHunt is ERC721Metadata("FOAM Treasure Hunt", "FTH"), ERC721MetadataMintable {

  constructor () public {
  }
}

Contract Security Audit

Contract ABI

[{"constant":true,"inputs":[{"name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"},{"name":"tokenURI","type":"string"}],"name":"mintWithTokenURI","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"account","type":"address"}],"name":"addMinter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"renounceMinter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"isMinter","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"},{"name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"account","type":"address"}],"name":"MinterAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"account","type":"address"}],"name":"MinterRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":true,"name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"approved","type":"address"},{"indexed":true,"name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"operator","type":"address"},{"indexed":false,"name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"}]

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

Deployed Bytecode

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

Swarm Source

bzzr://c79117ae4b71c96a0666dc3fcf7f4bec95fa931b2500ee225d4506f8a8f7c3c5

Block Transaction Difficulty Gas Used Reward
View All Blocks Produced

Block Uncle Number Difficulty Gas Used Reward
View All Uncles
Loading...
Loading
Loading...
Loading

Validator Index Block Amount
View All Withdrawals

Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
Loading...
Loading
[ Download: CSV Export  ]

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