Contract 0x76340ead9e3074cc0948550f128baad21a9b979a

 

Contract Overview

Balance:
0 ETH

ETH Value:
$0.00

Token:
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xa3bbcaa6fe51cea321c243e833f22ecff90edcb59fc73e017d229c401a66c6f5Fulfill Oracle R...718764932023-03-20 19:39:104 secs ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000082350.1
0xf2892468817cf4ffa50525e2aa565853d33c5458c47fe183edad9aac1543e934Fulfill Oracle R...718764852023-03-20 19:39:086 secs ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000082350.1
0x98929dadd9164f27853f6180194368d5509cfb9079e70f42bfb4a7eb87dbe1eaFulfill Oracle R...718764762023-03-20 19:39:068 secs ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000082350.1
0x2b47491c099c2a3287031e06d5a6efb643d72668c114ba1003bc14094365a43cFulfill Oracle R...718763672023-03-20 19:38:3935 secs ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000082350.1
0xc2b8e50b7b0bbb3770e232150fc2ae295ef4883412e91e7cf841e60be4009919Fulfill Oracle R...718761682023-03-20 19:37:481 min ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000082350.1
0xed7b881e5d84a6f36a6d2a535b524dbc314d14b9b64be24091b975359eb91daeFulfill Oracle R...718753852023-03-20 19:34:344 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x3b8d9120c818930f2d861424fccbff834b3fd4482cbfafa332617b49f4c11bbcFulfill Oracle R...718753802023-03-20 19:34:334 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x62a7a1b3450dec53577657fa689514c9bc5c5fc92ab6a6ed2ca2a89b3c34f067Fulfill Oracle R...718749762023-03-20 19:32:496 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x862b2f92fce129f48f851ccf2d54797de7bf0f6813b47bb7a3634807be63acf0Fulfill Oracle R...718746692023-03-20 19:31:317 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0xf72dcd8aa81f5a94481bc4f86bcc3bc1aaeaecde8b3bf6515922db2b6c2401e0Fulfill Oracle R...718745782023-03-20 19:31:088 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x999e92915741e9c26f3b4b2238559181607e7309b5de780507d844b385b03ea9Fulfill Oracle R...718744872023-03-20 19:30:448 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x09f121db203503e7e181591aeb23af4d16597a708f2178f7a534f46e6723ab73Fulfill Oracle R...718744792023-03-20 19:30:428 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000083550.1
0x4aa66cdea74c5986efeee4a1a0e75b4dfbca2a98d96290b219668b9b7042065fFulfill Oracle R...718744712023-03-20 19:30:408 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x28a60a1a5c140eebbf48bdc8a66bc928985902a73fbe364ba3fb868507deadadFulfill Oracle R...718744662023-03-20 19:30:398 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x6255a0e55df91dafc20905b5de8efc6f207dff81e5c25f6feabf6cd2e43fa779Fulfill Oracle R...718743692023-03-20 19:30:158 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x5366ea21bb150d6b910dff4ba5b9ba8e90795dd88f3cd39dd573034d5b2643caFulfill Oracle R...718741632023-03-20 19:29:239 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x51ef2d1b01eca49261c711574acd73ee4739a75f9d1df168381d8d7dce5987afFulfill Oracle R...718741132023-03-20 19:29:1010 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0xa27e655296c7d8cac13ba6888103fa00c49fa4a403d8a451bcea0766e152f701Fulfill Oracle R...718740612023-03-20 19:28:5710 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x821f904fd805a6d2b43b64de629c010ecc2430768cdde1a52a5d8ddff864f6c9Fulfill Oracle R...718740132023-03-20 19:28:4510 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.00008380.1
0x1b74376e38e0e14e3353544e3111f99181b394626b9ed370bd6162d59fbb923cFulfill Oracle R...718738792023-03-20 19:28:1810 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000102990.1
0x0a2e915f79154945bbecaad5323921ab2dae0c6fc06d82729fe08bc184e2701cFulfill Oracle R...718738152023-03-20 19:28:0111 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000102990.1
0xa39f069f7e0c175831ab0c70e3a799773f51fd9270c8afd74475738f66f85a20Fulfill Oracle R...718738082023-03-20 19:28:0011 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000102980.1
0x469fee4b675f0c655965b8983748a7cabb82fbfb19f3e54b9feff5612cd8bef5Fulfill Oracle R...718736132023-03-20 19:27:1012 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000102990.1
0x4bbe9195c46fdc388e5e6fdd9fd6c124a1927d9b2c1ea7ae0d57a6858376d780Fulfill Oracle R...718733582023-03-20 19:26:0613 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000102990.1
0x4ddc3f8d9150339eeb9acb2ec4c40b1ad057f659b7cf637f6714254795ee371dFulfill Oracle R...718732172023-03-20 19:25:3013 mins ago0x2abd8c3df3c59fa2a293330fa08a67a060d960de IN  0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH0.000102990.1
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0xa3bbcaa6fe51cea321c243e833f22ecff90edcb59fc73e017d229c401a66c6f5718764932023-03-20 19:39:104 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0xcef1c791cdd8c3ea92d6ab32399119fd30e1ff210 ETH
0x49085ae51c8f747a3d0977475e00ea201280d8501642bbaf1162b909fb24f2f4718764882023-03-20 19:39:095 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x49085ae51c8f747a3d0977475e00ea201280d8501642bbaf1162b909fb24f2f4718764882023-03-20 19:39:095 secs ago 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0xf2892468817cf4ffa50525e2aa565853d33c5458c47fe183edad9aac1543e934718764852023-03-20 19:39:086 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0xcef1c791cdd8c3ea92d6ab32399119fd30e1ff210 ETH
0xa1a8613e1b140beee080617ce1d5c7cc56fda4cbe3f1c84f6c8b78cfb50e07ce718764812023-03-20 19:39:077 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0xa1a8613e1b140beee080617ce1d5c7cc56fda4cbe3f1c84f6c8b78cfb50e07ce718764812023-03-20 19:39:077 secs ago 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x98929dadd9164f27853f6180194368d5509cfb9079e70f42bfb4a7eb87dbe1ea718764762023-03-20 19:39:068 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0xcef1c791cdd8c3ea92d6ab32399119fd30e1ff210 ETH
0x963667049d7add3417099fb494dfde9656565991e3ca1016e1b8ccd43318f868718764732023-03-20 19:39:059 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x963667049d7add3417099fb494dfde9656565991e3ca1016e1b8ccd43318f868718764732023-03-20 19:39:059 secs ago 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x209ec48dec82c2319c5eb2eeb8e3b3c87ef24279b461e946844a679e1170e11d718764622023-03-20 19:39:0311 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x209ec48dec82c2319c5eb2eeb8e3b3c87ef24279b461e946844a679e1170e11d718764622023-03-20 19:39:0311 secs ago 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x2b47491c099c2a3287031e06d5a6efb643d72668c114ba1003bc14094365a43c718763672023-03-20 19:38:3935 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0xcef1c791cdd8c3ea92d6ab32399119fd30e1ff210 ETH
0x3d21b9db308366d670cfdf6bff3177f1afa27d3e53486ced5682c4a9f38030d5718763562023-03-20 19:38:3638 secs ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x3d21b9db308366d670cfdf6bff3177f1afa27d3e53486ced5682c4a9f38030d5718763562023-03-20 19:38:3638 secs ago 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0xc2b8e50b7b0bbb3770e232150fc2ae295ef4883412e91e7cf841e60be4009919718761682023-03-20 19:37:481 min ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0xcef1c791cdd8c3ea92d6ab32399119fd30e1ff210 ETH
0x30a12a6c792564e44ef0b8598a8e5753294eea180f45eec7c6eaddbae4eb0151718761552023-03-20 19:37:441 min ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x30a12a6c792564e44ef0b8598a8e5753294eea180f45eec7c6eaddbae4eb0151718761552023-03-20 19:37:441 min ago 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0xed7b881e5d84a6f36a6d2a535b524dbc314d14b9b64be24091b975359eb91dae718753852023-03-20 19:34:344 mins ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0xcef1c791cdd8c3ea92d6ab32399119fd30e1ff210 ETH
0x3b8d9120c818930f2d861424fccbff834b3fd4482cbfafa332617b49f4c11bbc718753802023-03-20 19:34:334 mins ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0xcef1c791cdd8c3ea92d6ab32399119fd30e1ff210 ETH
0x05c299742ff5cb2cc69a294640821c414cbf5c9acd700e96592b930abd62244d718753692023-03-20 19:34:304 mins ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x05c299742ff5cb2cc69a294640821c414cbf5c9acd700e96592b930abd62244d718753692023-03-20 19:34:304 mins ago 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0xf1196c0e07a86bc3f69720301910ad818b4da7a562e0e9a7c10abcf32a6e1af2718753682023-03-20 19:34:304 mins ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0xf1196c0e07a86bc3f69720301910ad818b4da7a562e0e9a7c10abcf32a6e1af2718753682023-03-20 19:34:304 mins ago 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
0x62a7a1b3450dec53577657fa689514c9bc5c5fc92ab6a6ed2ca2a89b3c34f067718749762023-03-20 19:32:496 mins ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0xcef1c791cdd8c3ea92d6ab32399119fd30e1ff210 ETH
0x76fc45a8c6d5c24fbb9be4a8d45f927682f7c146bb70931af5424c06645d4baf718749632023-03-20 19:32:456 mins ago 0x76340ead9e3074cc0948550f128baad21a9b979a 0x76340ead9e3074cc0948550f128baad21a9b979a0 ETH
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xef847c4d7893c4598f234638cebe25b4c9ea32b3

Contract Name:
Oracle

Compiler Version
v0.6.6+commit.6c089d02

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Arbiscan on 2022-10-03
*/

// File: https://github.com/GainsNetwork-org/chainlink-tests/blob/develop/contracts/src/v0.6/vendor/SafeMathChainlink.sol


pragma solidity ^0.6.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMathChainlink {
  /**
    * @dev Returns the addition of two unsigned integers, reverting on
    * overflow.
    *
    * Counterpart to Solidity's `+` operator.
    *
    * Requirements:
    * - Addition cannot overflow.
    */
  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    require(c >= a, "SafeMath: addition overflow");

    return c;
  }

  /**
    * @dev Returns the subtraction of two unsigned integers, reverting on
    * overflow (when the result is negative).
    *
    * Counterpart to Solidity's `-` operator.
    *
    * Requirements:
    * - Subtraction cannot overflow.
    */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b <= a, "SafeMath: subtraction overflow");
    uint256 c = a - b;

    return c;
  }

  /**
    * @dev Returns the multiplication of two unsigned integers, reverting on
    * overflow.
    *
    * Counterpart to Solidity's `*` operator.
    *
    * Requirements:
    * - Multiplication cannot 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, "SafeMath: multiplication overflow");

    return c;
  }

  /**
    * @dev Returns the integer division of two unsigned integers. Reverts on
    * division by zero. The result is rounded towards zero.
    *
    * Counterpart to Solidity's `/` operator. Note: this function uses a
    * `revert` opcode (which leaves remaining gas untouched) while Solidity
    * uses an invalid opcode to revert (consuming all remaining gas).
    *
    * Requirements:
    * - The divisor cannot be zero.
    */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    // Solidity only automatically asserts when dividing by 0
    require(b > 0, "SafeMath: division by zero");
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    return c;
  }

  /**
    * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
    * Reverts when dividing by zero.
    *
    * Counterpart to Solidity's `%` operator. This function uses a `revert`
    * opcode (which leaves remaining gas untouched) while Solidity uses an
    * invalid opcode to revert (consuming all remaining gas).
    *
    * Requirements:
    * - The divisor cannot be zero.
    */
  function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b != 0, "SafeMath: modulo by zero");
    return a % b;
  }
}

// File: https://github.com/GainsNetwork-org/chainlink-tests/blob/develop/contracts/src/v0.6/vendor/Ownable.sol


pragma solidity ^0.6.0;

/**
 * @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.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be aplied to your functions to restrict their use to
 * the owner.
 *
 * This contract has been modified to remove the revokeOwnership function
 */
contract Ownable {
  address private _owner;

  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

  /**
   * @dev Initializes the contract setting the deployer as the initial owner.
   */
  constructor () internal {
    _owner = msg.sender;
    emit OwnershipTransferred(address(0), _owner);
  }

  /**
   * @dev Returns the address of the current owner.
   */
  function owner() public view returns (address) {
    return _owner;
  }

  /**
   * @dev Throws if called by any account other than the owner.
   */
  modifier onlyOwner() {
    require(isOwner(), "Ownable: caller is not the owner");
    _;
  }

  /**
   * @dev Returns true if the caller is the current owner.
   */
  function isOwner() public view returns (bool) {
    return msg.sender == _owner;
  }

  /**
   * @dev Transfers ownership of the contract to a new account (`newOwner`).
   * Can only be called by the current owner.
   */
  function transferOwnership(address newOwner) public onlyOwner {
    _transferOwnership(newOwner);
  }

  /**
   * @dev Transfers ownership of the contract to a new account (`newOwner`).
   */
  function _transferOwnership(address newOwner) internal {
    require(newOwner != address(0), "Ownable: new owner is the zero address");
    emit OwnershipTransferred(_owner, newOwner);
    _owner = newOwner;
  }
}

// File: https://github.com/GainsNetwork-org/chainlink-tests/blob/develop/contracts/src/v0.6/interfaces/WithdrawalInterface.sol


pragma solidity ^0.6.0;

interface WithdrawalInterface {
  /**
   * @notice transfer LINK held by the contract belonging to msg.sender to
   * another address
   * @param recipient is the address to send the LINK to
   * @param amount is the amount of LINK to send
   */
  function withdraw(address recipient, uint256 amount) external;

  /**
   * @notice query the available amount of LINK to withdraw by msg.sender
   */
  function withdrawable() external view returns (uint256);
}

// File: https://github.com/GainsNetwork-org/chainlink-tests/blob/develop/contracts/src/v0.6/interfaces/LinkTokenInterface.sol


pragma solidity ^0.6.0;

interface LinkTokenInterface {
  function allowance(address owner, address spender) external view returns (uint256 remaining);
  function approve(address spender, uint256 value) external returns (bool success);
  function balanceOf(address owner) external view returns (uint256 balance);
  function decimals() external view returns (uint8 decimalPlaces);
  function decreaseApproval(address spender, uint256 addedValue) external returns (bool success);
  function increaseApproval(address spender, uint256 subtractedValue) external;
  function name() external view returns (string memory tokenName);
  function symbol() external view returns (string memory tokenSymbol);
  function totalSupply() external view returns (uint256 totalTokensIssued);
  function transfer(address to, uint256 value) external returns (bool success);
  function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool success);
  function transferFrom(address from, address to, uint256 value) external returns (bool success);
}

// File: https://github.com/GainsNetwork-org/chainlink-tests/blob/develop/contracts/src/v0.6/interfaces/OracleInterface.sol


pragma solidity ^0.6.0;

interface OracleInterface {
  function fulfillOracleRequest(
    bytes32 requestId,
    uint256 payment,
    address callbackAddress,
    bytes4 callbackFunctionId,
    uint256 expiration,
    bytes32 data
  ) external returns (bool);
  function getAuthorizationStatus(address node) external view returns (bool);
  function setFulfillmentPermission(address node, bool allowed) external;
  function withdraw(address recipient, uint256 amount) external;
  function withdrawable() external view returns (uint256);
}

// File: https://github.com/GainsNetwork-org/chainlink-tests/blob/develop/contracts/src/v0.6/interfaces/ChainlinkRequestInterface.sol


pragma solidity ^0.6.0;

interface ChainlinkRequestInterface {
  function oracleRequest(
    address sender,
    uint256 requestPrice,
    bytes32 serviceAgreementID,
    address callbackAddress,
    bytes4 callbackFunctionId,
    uint256 nonce,
    uint256 dataVersion,
    bytes calldata data
  ) external;

  function cancelOracleRequest(
    bytes32 requestId,
    uint256 payment,
    bytes4 callbackFunctionId,
    uint256 expiration
  ) external;
}

// File: https://github.com/GainsNetwork-org/chainlink-tests/blob/develop/contracts/src/v0.6/LinkTokenReceiver.sol


pragma solidity ^0.6.0;

abstract contract LinkTokenReceiver {

  bytes4 constant private ORACLE_REQUEST_SELECTOR = 0x40429946;
  uint256 constant private SELECTOR_LENGTH = 4;
  uint256 constant private EXPECTED_REQUEST_WORDS = 2;
  uint256 constant private MINIMUM_REQUEST_LENGTH = SELECTOR_LENGTH + (32 * EXPECTED_REQUEST_WORDS);
  /**
   * @notice Called when LINK is sent to the contract via `transferAndCall`
   * @dev The data payload's first 2 words will be overwritten by the `_sender` and `_amount`
   * values to ensure correctness. Calls oracleRequest.
   * @param _sender Address of the sender
   * @param _amount Amount of LINK sent (specified in wei)
   * @param _data Payload of the transaction
   */
  function onTokenTransfer(
    address _sender,
    uint256 _amount,
    bytes memory _data
  )
    public
    onlyLINK
    validRequestLength(_data)
    permittedFunctionsForLINK(_data)
  {
    assembly {
      // solhint-disable-next-line avoid-low-level-calls
      mstore(add(_data, 36), _sender) // ensure correct sender is passed
      // solhint-disable-next-line avoid-low-level-calls
      mstore(add(_data, 68), _amount)    // ensure correct amount is passed
    }
    // solhint-disable-next-line avoid-low-level-calls
    (bool success, ) = address(this).delegatecall(_data); // calls oracleRequest
    require(success, "Unable to create request");
  }

  function getChainlinkToken() public view virtual returns (address);

  /**
   * @dev Reverts if not sent from the LINK token
   */
  modifier onlyLINK() {
    require(msg.sender == getChainlinkToken(), "Must use LINK token");
    _;
  }

  /**
   * @dev Reverts if the given data does not begin with the `oracleRequest` function selector
   * @param _data The data payload of the request
   */
  modifier permittedFunctionsForLINK(bytes memory _data) {
    bytes4 funcSelector;
    assembly {
      // solhint-disable-next-line avoid-low-level-calls
      funcSelector := mload(add(_data, 32))
    }
    require(funcSelector == ORACLE_REQUEST_SELECTOR, "Must use whitelisted functions");
    _;
  }

  /**
   * @dev Reverts if the given payload is less than needed to create a request
   * @param _data The request payload
   */
  modifier validRequestLength(bytes memory _data) {
    require(_data.length >= MINIMUM_REQUEST_LENGTH, "Invalid request length");
    _;
  }
}

// File: https://github.com/GainsNetwork-org/chainlink-tests/blob/develop/contracts/src/v0.6/Oracle.sol


pragma solidity 0.6.6;








/**
 * @title The Chainlink Oracle contract
 * @notice Node operators can deploy this contract to fulfill requests sent to them
 */
contract Oracle is ChainlinkRequestInterface, OracleInterface, Ownable, LinkTokenReceiver, WithdrawalInterface {
  using SafeMathChainlink for uint256;

  uint256 constant public EXPIRY_TIME = 5 minutes;
  uint256 constant private MINIMUM_CONSUMER_GAS_LIMIT = 400000;
  // We initialize fields to 1 instead of 0 so that the first invocation
  // does not cost more gas.
  uint256 constant private ONE_FOR_CONSISTENT_GAS_COST = 1;

  LinkTokenInterface internal LinkToken;
  mapping(bytes32 => bytes32) private commitments;
  mapping(address => bool) private authorizedNodes;
  uint256 private withdrawableTokens = ONE_FOR_CONSISTENT_GAS_COST;

  event OracleRequest(
    bytes32 indexed specId,
    address requester,
    bytes32 requestId,
    uint256 payment,
    address callbackAddr,
    bytes4 callbackFunctionId,
    uint256 cancelExpiration,
    uint256 dataVersion,
    bytes data
  );

  event CancelOracleRequest(
    bytes32 indexed requestId
  );

  /**
   * @notice Deploy with the address of the LINK token
   * @dev Sets the LinkToken address for the imported LinkTokenInterface
   * @param _link The address of the LINK token
   */
  constructor(address _link)
    public
    Ownable()
  {
    LinkToken = LinkTokenInterface(_link); // external but already deployed and unalterable
  }

  /**
   * @notice Creates the Chainlink request
   * @dev Stores the hash of the params as the on-chain commitment for the request.
   * Emits OracleRequest event for the Chainlink node to detect.
   * @param _sender The sender of the request
   * @param _payment The amount of payment given (specified in wei)
   * @param _specId The Job Specification ID
   * @param _callbackAddress The callback address for the response
   * @param _callbackFunctionId The callback function ID for the response
   * @param _nonce The nonce sent by the requester
   * @param _dataVersion The specified data version
   * @param _data The CBOR payload of the request
   */
  function oracleRequest(
    address _sender,
    uint256 _payment,
    bytes32 _specId,
    address _callbackAddress,
    bytes4 _callbackFunctionId,
    uint256 _nonce,
    uint256 _dataVersion,
    bytes calldata _data
  )
    external
    override
    onlyLINK()
    checkCallbackAddress(_callbackAddress)
  {
    bytes32 requestId = keccak256(abi.encodePacked(_sender, _nonce));
    require(commitments[requestId] == 0, "Must use a unique ID");
    // solhint-disable-next-line not-rely-on-time
    uint256 expiration = now.add(EXPIRY_TIME);

    commitments[requestId] = keccak256(
      abi.encodePacked(
        _payment,
        _callbackAddress,
        _callbackFunctionId,
        expiration
      )
    );

    emit OracleRequest(
      _specId,
      _sender,
      requestId,
      _payment,
      _callbackAddress,
      _callbackFunctionId,
      expiration,
      _dataVersion,
      _data);
  }

  /**
   * @notice Called by the Chainlink node to fulfill requests
   * @dev Given params must hash back to the commitment stored from `oracleRequest`.
   * Will call the callback address' callback function without bubbling up error
   * checking in a `require` so that the node can get paid.
   * @param _requestId The fulfillment request ID that must match the requester's
   * @param _payment The payment amount that will be released for the oracle (specified in wei)
   * @param _callbackAddress The callback address to call for fulfillment
   * @param _callbackFunctionId The callback function ID to use for fulfillment
   * @param _expiration The expiration that the node should respond by before the requester can cancel
   * @param _data The data to return to the consuming contract
   * @return Status if the external call was successful
   */
  function fulfillOracleRequest(
    bytes32 _requestId,
    uint256 _payment,
    address _callbackAddress,
    bytes4 _callbackFunctionId,
    uint256 _expiration,
    bytes32 _data
  )
    external
    onlyAuthorizedNode
    override
    isValidRequest(_requestId)
    returns (bool)
  {
    bytes32 paramsHash = keccak256(
      abi.encodePacked(
        _payment,
        _callbackAddress,
        _callbackFunctionId,
        _expiration
      )
    );
    require(commitments[_requestId] == paramsHash, "Params do not match request ID");
    withdrawableTokens = withdrawableTokens.add(_payment);
    delete commitments[_requestId];
    //require(gasleft() >= MINIMUM_CONSUMER_GAS_LIMIT, "Must provide consumer enough gas");
    // All updates to the oracle's fulfillment should come before calling the
    // callback(addr+functionId) as it is untrusted.
    // See: https://solidity.readthedocs.io/en/develop/security-considerations.html#use-the-checks-effects-interactions-pattern
    (bool success, ) = _callbackAddress.call(abi.encodeWithSelector(_callbackFunctionId, _requestId, _data)); // solhint-disable-line avoid-low-level-calls
    return success;
  }

  /**
   * @notice Use this to check if a node is authorized for fulfilling requests
   * @param _node The address of the Chainlink node
   * @return The authorization status of the node
   */
  function getAuthorizationStatus(address _node)
    external
    view
    override
    returns (bool)
  {
    return authorizedNodes[_node];
  }

  /**
   * @notice Sets the fulfillment permission for a given node. Use `true` to allow, `false` to disallow.
   * @param _node The address of the Chainlink node
   * @param _allowed Bool value to determine if the node can fulfill requests
   */
  function setFulfillmentPermission(address _node, bool _allowed)
    external
    override
    onlyOwner()
  {
    authorizedNodes[_node] = _allowed;
  }

  /**
   * @notice Allows the node operator to withdraw earned LINK to a given address
   * @dev The owner of the contract can be another wallet and does not have to be a Chainlink node
   * @param _recipient The address to send the LINK token to
   * @param _amount The amount to send (specified in wei)
   */
  function withdraw(address _recipient, uint256 _amount)
    external
    override(OracleInterface, WithdrawalInterface)
    onlyOwner
    hasAvailableFunds(_amount)
  {
    withdrawableTokens = withdrawableTokens.sub(_amount);
    assert(LinkToken.transfer(_recipient, _amount));
  }

  /**
   * @notice Displays the amount of LINK that is available for the node operator to withdraw
   * @dev We use `ONE_FOR_CONSISTENT_GAS_COST` in place of 0 in storage
   * @return The amount of withdrawable LINK on the contract
   */
  function withdrawable()
    external
    view
    override(OracleInterface, WithdrawalInterface)
    onlyOwner()
    returns (uint256)
  {
    return withdrawableTokens.sub(ONE_FOR_CONSISTENT_GAS_COST);
  }

  /**
   * @notice Allows requesters to cancel requests sent to this oracle contract. Will transfer the LINK
   * sent for the request back to the requester's address.
   * @dev Given params must hash to a commitment stored on the contract in order for the request to be valid
   * Emits CancelOracleRequest event.
   * @param _requestId The request ID
   * @param _payment The amount of payment given (specified in wei)
   * @param _callbackFunc The requester's specified callback address
   * @param _expiration The time of the expiration for the request
   */
  function cancelOracleRequest(
    bytes32 _requestId,
    uint256 _payment,
    bytes4 _callbackFunc,
    uint256 _expiration
  )
    external
    override
  {
    bytes32 paramsHash = keccak256(
      abi.encodePacked(
        _payment,
        msg.sender,
        _callbackFunc,
        _expiration)
    );
    require(paramsHash == commitments[_requestId], "Params do not match request ID");
    // solhint-disable-next-line not-rely-on-time
    require(_expiration <= now, "Request is not expired");

    delete commitments[_requestId];
    emit CancelOracleRequest(_requestId);

    assert(LinkToken.transfer(msg.sender, _payment));
  }

  /**
   * @notice Returns the address of the LINK token
   * @dev This is the public implementation for chainlinkTokenAddress, which is
   * an internal method of the ChainlinkClient contract
   */
  function getChainlinkToken()
    public
    view
    override
    returns (address)
  {
    return address(LinkToken);
  }

  // MODIFIERS

  /**
   * @dev Reverts if amount requested is greater than withdrawable balance
   * @param _amount The given amount to compare to `withdrawableTokens`
   */
  modifier hasAvailableFunds(uint256 _amount) {
    require(withdrawableTokens >= _amount.add(ONE_FOR_CONSISTENT_GAS_COST), "Amount requested is greater than withdrawable balance");
    _;
  }

  /**
   * @dev Reverts if request ID does not exist
   * @param _requestId The given request ID to check in stored `commitments`
   */
  modifier isValidRequest(bytes32 _requestId) {
    require(commitments[_requestId] != 0, "Must have a valid requestId");
    _;
  }

  /**
   * @dev Reverts if `msg.sender` is not authorized to fulfill requests
   */
  modifier onlyAuthorizedNode() {
    require(authorizedNodes[msg.sender] || msg.sender == owner(), "Not an authorized node to fulfill requests");
    _;
  }

  /**
   * @dev Reverts if the callback address is the LINK token
   * @param _to The callback address
   */
  modifier checkCallbackAddress(address _to) {
    require(_to != address(LinkToken), "Cannot callback to LINK");
    _;
  }

}

// File: gns-arb-oracle.sol



pragma solidity ^0.6.6;

Contract ABI

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Metadata Hash

b122887eec5532ee5abba7333c18379a1822f5ab55af14a11b12a2b5007ac3f4
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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