Contract Address Details

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// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.19;
import '@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol';
import '../libraries/Ownable.sol';
import '../libraries/ReentrancyGuard.sol';
import './interfaces/IOrandProviderV3.sol';
import './interfaces/IOrandECVRFV3.sol';
import './interfaces/IOrandConsumerV3.sol';
import './OrandStorageV3.sol';
import './OrandManagementV3.sol';
import './OrandECDSAV3.sol';
import '../orocle-v1/interfaces/IOrocleAggregatorV1.sol';
contract OrandProviderV3 is
  Initializable,
  Ownable,
  ReentrancyGuard,
  OrandStorageV3,
  OrandManagementV3,
  OrandECDSAV3,
  IOrandProviderV3
{
  // ECVRF verifier smart contract
  IOrandECVRFV3 private ecvrf;
  // Orocle V1
  IOrocleAggregatorV1 private oracle;
  // We allow max batching is 1000
  uint256 private maxBatching;
  // Event: Set New ECVRF Verifier
  event SetNewECVRFVerifier(address indexed actor, address indexed ecvrfAddress);
  // Event: Set the limit for batching randomness
  event SetBatchingLimit(address indexed actor, uint256 indexed maxBatching);
  // Event: set new oracle
  event SetNewOracle(address indexed actor, address indexed newOracle);
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (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;
    }
    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
          
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/Math.sol";
import "./math/SignedMath.sol";
/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;
    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }
    /**
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)
pragma solidity ^0.8.0;
import "../Strings.sol";
/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }
    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }
    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }
    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }
    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }
    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.0;
/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }
    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }
    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }
    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
 
 
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// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.19;
// Index is out of range
error OutOfRange(uint256 requiredLen, uint256 maxLen);
library Bytes {
  // Read address from input bytes buffer
  function readAddress(bytes memory input, uint256 offset) internal pure returns (address result) {
    if (offset + 20 > input.length) {
      revert OutOfRange(offset + 20, input.length);
    }
    assembly {
      result := shr(96, mload(add(add(input, 0x20), offset)))
    }
  }
  // Read unsafe from input bytes buffer
  function readUintUnsafe(bytes memory input, uint256 offset, uint256 bitLen) internal pure returns (uint256 result) {
    assembly {
      result := shr(sub(256, bitLen), mload(add(add(input, 0x20), offset)))
    }
  }
  // Read uint256 from input bytes buffer
  function readUint256(bytes memory input, uint256 offset) internal pure returns (uint256 result) {
    if (offset + 32 > input.length) {
      revert OutOfRange(offset + 32, input.length);
    }
    assembly {
      result := mload(add(add(input, 0x20), offset))
    }
  }
  // Read a sub bytes array from input bytes buffer
  function readBytes(bytes memory input, uint256 offset, uint256 length) internal pure returns (bytes memory) {
    if (offset + length > input.length) {
      revert OutOfRange(offset + length, input.length);
    }
    bytes memory result = new bytes(length);
    assembly {
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import '@openzeppelin/contracts/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.
   */
  function _initOwnable() internal {
    _transferOwnership(_msgSender());
  }
  /**
   * @dev Throws if called by any account other than the owner.
   */
  modifier onlyOwner() {
    _checkOwner();
    _;
  }
  /**
   * @dev Returns the address of the current owner.
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
import './IOrandProviderV3.sol';
interface IOrandECVRFV3 {
  // Verify raw proof of ECVRF
  function verifyECVRFProof(
    uint256[2] memory pk,
    uint256[2] memory gamma,
    uint256 c,
    uint256 s,
    uint256 alpha,
    address uWitness,
    uint256[2] memory cGammaWitness,
    uint256[2] memory sHashWitness,
    uint256 zInv
  ) external view returns (uint256 y);
  // Verify structed proof of ECVRF
  function verifyStructECVRFProof(
    uint256[2] memory pk,
    IOrandProviderV3.ECVRFProof memory ecvrfProof
  ) external view returns (uint256 y);
}
          
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
contract ReentrancyGuard {
  // Booleans are more expensive than uint256 or any type that takes up a full
  // word because each write operation emits an extra SLOAD to first read the
  // slot's contents, replace the bits taken up by the boolean, and then write
  // back. This is the compiler's defense against contract upgrades and
  // pointer aliasing, and it cannot be disabled.
  // The values being non-zero value makes deployment a bit more expensive,
  // but in exchange the refund on every call to nonReentrant will be lower in
  // amount. Since refunds are capped to a percentage of the total
  // transaction's gas, it is best to keep them low in cases like this one, to
  // increase the likelihood of the full refund coming into effect.
  uint256 private constant _NOT_ENTERED = 1;
  uint256 private constant _ENTERED = 2;
  uint256 private _status;
  function _initReentrancyGuard() internal {
    _status = _NOT_ENTERED;
  }
 
 
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// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.19;
import '@openzeppelin/contracts/utils/cryptography/ECDSA.sol';
import '../libraries/Bytes.sol';
import './interfaces/IOrandECDSAV3.sol';
contract OrandECDSAV3 is IOrandECDSAV3 {
  // Event: Set New Operator
  event SetNewOperator(address indexed oldOperator, address indexed newOperator);
  // Orand operator address
  address private operator;
  // Byte manipulation
  using Bytes for bytes;
  // Verifiy digital signature
  using ECDSA for bytes;
  using ECDSA for bytes32;
  // Set operator at constructing time
  function _initOrandECDSAV3(address operatorAddress) internal {
    _setOperator(operatorAddress);
  }
  //=======================[  Internal  ]====================
  // Set proof operator
  function _setOperator(address operatorAddress) internal {
    emit SetNewOperator(operator, operatorAddress);
    operator = operatorAddress;
  }
  //=======================[  Internal View  ]====================
  // Get operator address
  function _getOperator() internal view returns (address operatorAddress) {
    return operator;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.19;
import '../libraries/Bytes.sol';
import './interfaces/IOrandManagementV3.sol';
contract OrandManagementV3 is IOrandManagementV3 {
  // Public key that will be use to
  uint256[2] private publicKey;
  // Event Set New Public Key
  event SetNewPublicKey(address indexed actor, uint256 indexed pkx, uint256 indexed pky);
  // Set public key of Orand at the constructing time
  function _initOrandManagementV3(uint256[2] memory publickey) internal {
    _setPublicKey(publickey);
  }
  //=======================[  Internal  ]====================
  // Set new public key by XY to verify ECVRF proof
  function _setPublicKey(uint256[2] memory publickey) internal {
    publicKey = publickey;
    emit SetNewPublicKey(msg.sender, publickey[0], publickey[1]);
  }
  //=======================[  Internal view ]====================
  // Get public key
  function _getPublicKey() internal view returns (uint256[2] memory pubKey) {
    return publicKey;
  }
  // Get public key digest
  function _getPublicKeyDigest() internal view returns (bytes32 pubKeyDigest) {
    return keccak256(abi.encodePacked(publicKey));
  }
  //=======================[  External view  ]====================
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.19;
import './interfaces/IOrandStorageV3.sol';
import '../libraries/Bytes.sol';
contract OrandStorageV3 is IOrandStorageV3 {
  using Bytes for bytes;
  // Event: New Epoch
  event NewEpoch(address indexed receiverAddress, uint96 indexed receiverEpoch, uint256 indexed randomness);
  // Storage of recent epoch's result
  // Map epoch ++ receiver  -> alpha
  mapping(uint256 => uint256) private epochResult;
  // Map receiver -> total epoch
  mapping(address => uint256) private epochMax;
  //=======================[  Internal  ]====================
  // Add validity epoch
  function _addEpoch(address receiver, uint256 result) internal {
    uint96 epoch = uint96(epochMax[receiver]);
    // Add epoch to storage
    // epoch != 0 => able to sue == true
    epochResult[_packing(epoch, receiver)] = result;
    // If add new epoch we increase the epoch max 1
    epochMax[receiver] = epoch + 1;
    // Emit event to outside of EVM
    emit NewEpoch(receiver, epoch, result);
  }
  //=======================[  Internal pure ]====================
  // Packing adderss and uint96 to a single bytes32
  // 96 bits a ++ 160 bits b
  function _packing(uint96 a, address b) internal pure returns (uint256 packed) {
    assembly {
      packed := or(shl(160, a), b)
    }
 
 
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// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
error InvalidProvider();
/**
* @dev IOrandConsumerV3 must be implemented for all service that use Orand
*/
interface IOrandConsumerV3 {
  /**
  * Consume the verifiable randomness from Orand provider
  * @param randomness Randomness value
  * @return return false if you want to stop batching otherwise return true
  */
  function consumeRandomness(uint256 randomness) external returns (bool);
  /**
  * Check the fulfill status of randomness batching
  * @return true if all requests are fulfilled otherwise return false
  */
  function isFulfilled() external returns (bool);
}
          
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
// Error
error InvalidECDSAProofLength(uint256 proofLength);
error InvalidProofSigner(address proofSigner);
interface IOrandECDSAV3 {
  // Struct Orand ECDSA proof
  struct OrandECDSAProof {
    address signer;
    address receiverAddress;
    uint96 receiverEpoch;
    uint256 ecvrfProofDigest;
  }
  // Get signer address from a valid proof
  function decomposeProof(bytes memory proof) external pure returns (OrandECDSAProof memory ecdsaProof);
  // Get operator
  function getOperator() external view returns (address operatorAddress);
}
          
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
interface IOrandManagementV3 {
  // Get public key
  function getPublicKey() external view returns (uint256[2] memory pubKey);
  // Get digest of corresponding public key
  function getPublicKeyDigest() external view returns (bytes32 operator);
}
          
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
import './IOrandECDSAV3.sol';
error UnableToForwardRandomness(address receiver, uint256 y);
error InvalidAlphaValue(uint256 expectedAlpha, uint256 givenAlpha);
error InvalidGenesisEpoch(uint256 currentEpoch);
error InvalidECVRFProofDigest();
error InvalidECDSAProof(address signerAddress);
interface IOrandProviderV3 is IOrandECDSAV3 {
  // ECVRF struct
  struct ECVRFProof {
    uint256[2] gamma;
    uint256 c;
    uint256 s;
    uint256 alpha;
    address uWitness;
    uint256[2] cGammaWitness;
    uint256[2] sHashWitness;
    uint256 zInv;
  }
  // Start new genesis for receiver
  function genesis(bytes memory fraudProof, ECVRFProof calldata ecvrfProof) external returns (bool);
  // Publish new epoch with Fraud Proof
  function publishFraudProof(bytes memory fraudProof, ECVRFProof calldata ecvrfProof) external returns (bool);
  // Publish new epoch with ECDSA Proof and Fraud Proof
  function publish(address receiver, ECVRFProof calldata ecvrfProof) external returns (bool);
  // Verify a ECVRF proof epoch is valid or not
  function verifyEpoch(
    bytes memory fraudProof,
    ECVRFProof calldata ecvrfProof
  )
    external
    view
    returns (
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
interface IOrandStorageV3 {
  // Get a given epoch result for a given receiver
  function getEpochResult(address receiver, uint96 epoch) external view returns (uint256 result);
  // Get total number of epochs for a given receiver
  function getTotalEpoch(address receiver) external view returns (uint96 epoch);
  // Get current epoch of a given receiver
  function getCurrentEpoch(address receiver) external view returns (uint96 epoch);
  // Get current epoch of a given receiver
  function getCurrentEpochResult(address receiver) external view returns (uint256 result);
}
          
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
error ExistedApplication(uint32 appId);
error InvalidApplication(uint32 appId);
error InvalidApplicationName(bytes24 appName);
error InvalidRoundNumber(uint64 round, uint64 requiredRound);
error UndefinedRound(uint64 round);
error InvalidDataLength(uint256 length);
error UnableToPublishData(bytes data);
error DeactivatedUser(address user);
interface IOrocleAggregatorV1 {
  /**
   * Emit event when a new request is created
   * @param identifier Data identifier
   * @param data Data
   */
  function request(uint256 identifier, bytes calldata data) external returns (bool);
  /**
   * Fulfill request
   * @param identifier Data identifier
   * @param data Data
   */
  function fulfill(uint256 identifier, bytes calldata data) external returns (bool);
  /**
   * Check if user is deactivated
   * @param user User address
   * @return status
   */
  function isDeactivated(address user) external view returns (bool);
  /**
   * Get round of a given application
   * @param appId Application ID
   * @return round
   */
  function getMetadata(uint32 appId, bytes20 identifier) external view returns (uint64 round, uint64 lastUpdate);
 
 
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