ETH Price: $3,119.25 (+4.05%)
Gas: 4 Gwei

Contract

0xb23d80f5FefcDDaa212212F028021B41DEd428CF
 
Transaction Hash
Method
Block
From
To
Value
0xf9f43c2482a5a8138a0a26824b2ce95b5c2e0321c7bbe76953615270c69611d4Transfer(pending)2024-04-23 14:46:3010 days ago1713883590IN
Prime Foundation: PRIME Token
0 ETH(Pending)(Pending)
0xf337cef714c0fa700bd3d059a62386619427d3ed2b4fa450e44bb0d4f6044cd0Increase Allowan...(pending)2024-04-21 3:04:3613 days ago1713668676IN
Prime Foundation: PRIME Token
0 ETH(Pending)(Pending)
Transfer197943422024-05-04 4:25:1152 mins ago1714796711IN
Prime Foundation: PRIME Token
0 ETH0.000273835.08573686
Transfer197943262024-05-04 4:21:5955 mins ago1714796519IN
Prime Foundation: PRIME Token
0 ETH0.000168515.27337764
Transfer197943192024-05-04 4:20:3557 mins ago1714796435IN
Prime Foundation: PRIME Token
0 ETH0.000426397.91733666
Transfer197943132024-05-04 4:19:2358 mins ago1714796363IN
Prime Foundation: PRIME Token
0 ETH0.000258725.27397981
Approve197943102024-05-04 4:18:471 hrs ago1714796327IN
Prime Foundation: PRIME Token
0 ETH0.000258175.54449813
Transfer197942672024-05-04 4:10:111 hr ago1714795811IN
Prime Foundation: PRIME Token
0 ETH0.000257178.04789881
Transfer197942362024-05-04 4:03:471 hr ago1714795427IN
Prime Foundation: PRIME Token
0 ETH0.000165235.66722057
Transfer197942082024-05-04 3:58:111 hr ago1714795091IN
Prime Foundation: PRIME Token
0 ETH0.000253317.92998756
Approve197942012024-05-04 3:56:471 hr ago1714795007IN
Prime Foundation: PRIME Token
0 ETH0.000374618.08249965
Transfer197939622024-05-04 3:08:112 hrs ago1714792091IN
Prime Foundation: PRIME Token
0 ETH0.000182175.69851962
Transfer197939412024-05-04 3:03:592 hrs ago1714791839IN
Prime Foundation: PRIME Token
0 ETH0.000220996.01064679
Transfer197939302024-05-04 3:01:472 hrs ago1714791707IN
Prime Foundation: PRIME Token
0 ETH0.000224576.10784935
Transfer197939112024-05-04 2:57:592 hrs ago1714791479IN
Prime Foundation: PRIME Token
0 ETH0.000306515.69135458
Approve197938732024-05-04 2:50:232 hrs ago1714791023IN
Prime Foundation: PRIME Token
0 ETH0.000269255.81982914
Transfer197938522024-05-04 2:46:112 hrs ago1714790771IN
Prime Foundation: PRIME Token
0 ETH0.00030455.65534658
Transfer197937772024-05-04 2:31:112 hrs ago1714789871IN
Prime Foundation: PRIME Token
0 ETH0.00031465.84281952
Transfer197937292024-05-04 2:21:352 hrs ago1714789295IN
Prime Foundation: PRIME Token
0 ETH0.000279697.61195926
Transfer197936952024-05-04 2:14:473 hrs ago1714788887IN
Prime Foundation: PRIME Token
0 ETH0.0002628.19577997
Transfer197936752024-05-04 2:10:473 hrs ago1714788647IN
Prime Foundation: PRIME Token
0 ETH0.000306925.70019072
Approve197936532024-05-04 2:06:233 hrs ago1714788383IN
Prime Foundation: PRIME Token
0 ETH0.000184196.32065402
Transfer197935472024-05-04 1:45:113 hrs ago1714787111IN
Prime Foundation: PRIME Token
0 ETH0.000312585.80279981
Approve197934232024-05-04 1:20:233 hrs ago1714785623IN
Prime Foundation: PRIME Token
0 ETH0.000244865.28440319
Approve197934232024-05-04 1:20:233 hrs ago1714785623IN
Prime Foundation: PRIME Token
0 ETH0.000241388.28340319
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Latest 25 internal transactions (View All)

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Parent Transaction Hash Block From To Value
197912642024-05-03 18:05:4711 hrs ago1714759547
Prime Foundation: PRIME Token
0.00049835 ETH
197888822024-05-03 10:06:1119 hrs ago1714730771
Prime Foundation: PRIME Token
0.00043003 ETH
197848432024-05-02 20:33:3532 hrs ago1714682015
Prime Foundation: PRIME Token
0.00043003 ETH
197848202024-05-02 20:28:5932 hrs ago1714681739
Prime Foundation: PRIME Token
0.00043003 ETH
197817722024-05-02 10:14:3543 hrs ago1714644875
Prime Foundation: PRIME Token
0.00040707 ETH
197790192024-05-02 0:59:232 days ago1714611563
Prime Foundation: PRIME Token
0.00042597 ETH
197770882024-05-01 18:31:232 days ago1714588283
Prime Foundation: PRIME Token
0.00042597 ETH
197756082024-05-01 13:34:232 days ago1714570463
Prime Foundation: PRIME Token
0.00042597 ETH
197748062024-05-01 10:53:232 days ago1714560803
Prime Foundation: PRIME Token
0.00042597 ETH
197743952024-05-01 9:30:112 days ago1714555811
Prime Foundation: PRIME Token
0.00042597 ETH
197700682024-04-30 18:58:593 days ago1714503539
Prime Foundation: PRIME Token
0.00048344 ETH
197687742024-04-30 14:38:593 days ago1714487939
Prime Foundation: PRIME Token
0.00042578 ETH
197681322024-04-30 12:29:593 days ago1714480199
Prime Foundation: PRIME Token
0.00042578 ETH
197664742024-04-30 6:55:593 days ago1714460159
Prime Foundation: PRIME Token
0.00039867 ETH
197664722024-04-30 6:55:353 days ago1714460135
Prime Foundation: PRIME Token
0.00039867 ETH
197664692024-04-30 6:54:593 days ago1714460099
Prime Foundation: PRIME Token
0.00039867 ETH
197664662024-04-30 6:54:233 days ago1714460063
Prime Foundation: PRIME Token
0.00039867 ETH
197660382024-04-30 5:28:353 days ago1714454915
Prime Foundation: PRIME Token
0.00039867 ETH
197650072024-04-30 2:01:474 days ago1714442507
Prime Foundation: PRIME Token
0.00039867 ETH
197638982024-04-29 22:18:594 days ago1714429139
Prime Foundation: PRIME Token
0.00039813 ETH
197587302024-04-29 4:57:475 days ago1714366667
Prime Foundation: PRIME Token
0.00039801 ETH
197578382024-04-29 1:58:355 days ago1714355915
Prime Foundation: PRIME Token
0.00039801 ETH
197575592024-04-29 1:02:355 days ago1714352555
Prime Foundation: PRIME Token
0.00039801 ETH
197558152024-04-28 19:11:235 days ago1714331483
Prime Foundation: PRIME Token
0.00039801 ETH
197545552024-04-28 14:56:595 days ago1714316219
Prime Foundation: PRIME Token
0.00039101 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
PrimeToken

Compiler Version
v0.8.7+commit.e28d00a7

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 13 : PrimeToken.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.7;

import "@openzeppelin/contracts/token/ERC20/presets/ERC20PresetFixedSupply.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

/*
 * @title Prime [PRIME] ERC20 Token
 * @notice PRIME is a core ERC20 token created by the Echelon Prime Foundation.
 *         PRIME powers the Echelon ecosystem's network of PlayFi games, governance protocols, and more.
 * @author Echelon Prime Foundation
 *
 * @dev Token Summary:
 *      - Symbol: PRIME
 *      - Name: Prime
 *      - Decimals: 18
 *      - Token supply: 111,111,111.111 PRIME
 *      - Burnable: total supply may decrease
 *      - Not mintable
 */

/*
 * @dev InvokeEchelonHandler: Another type of contract in the Echelon ecosystem that will be deployed after PRIME.
 *      Different InvokeEchelonHandler's will be deployed over time to facilitate expanding PRIME use cases.
 *      InvokeEchelonHandler.handleInvokeEchelon is called at the end of the invokeEchelon function (see below).
 *      handleInvokeEchelon enables additional functionality to execute after the movement of PRIME and/or ETH.
 *      A very similar concept is utilized in EchelonCache(1155) to enable Core Pack NFT holders to send NFTs + ETH
 *      and receive a different set of NFTs back, all within a single transaction (no approve necessary).
 * @param _from - The address of the caller of invokeEchelon
 * @param _ethDestination - The address to which ETH was collected to before calling handleInvokeEchelon
 * @param _primeDestination - The address to which PRIME was collected to before calling handleInvokeEchelon
 * @param _id - An id passed by the caller to represent any arbitrary and potentially off-chain event id
 * @param _ethValue - The amount of ETH that was sent to the invokeEchelon function (and was collected to _ethDestination)
 * @param _primeValue - The amount of PRIME that was sent to the invokeEchelon function (and was collected to _primeDestination)
 * @param _data - Catch-all param allowing callers to pass additional data
 */
abstract contract InvokeEchelonHandler {
    function handleInvokeEchelon(
        address _from,
        address _ethDestination,
        address _primeDestination,
        uint256 _id,
        uint256 _ethValue,
        uint256 _primeValue,
        bytes memory _data
    ) external virtual;
}

contract PrimeToken is ERC20PresetFixedSupply, AccessControl, ReentrancyGuard {
    /**
     * @notice ERC20 Name of the token: Prime
     * @dev ERC20 function name() public view returns (string)
     * @dev Field is declared public: getter name() is created when compiled,
     *      it returns the name of the token.
     */
    string public constant NAME = "Prime";

    /**
     * @notice ERC20 Symbol of the token: PRIME
     * @dev ERC20 function symbol() public view returns (string)
     * @dev Field is declared public: getter symbol() is created when compiled,
     *      it returns the symbol of the token
     */
    string public constant SYMBOL = "PRIME";

    /**
     * @notice Total supply of the token: 111,111,111.111
     * @dev ERC20 `function totalSupply() public view returns (uint256)`
     * @dev Field is declared public: getter totalSupply() is created when compiled,
     *      it returns the amount of tokens in existence.
     */
    uint256 public constant SUPPLY = 111111111111000000000000000;

    /**
     * @notice EchelonGateway record stores the details of an InvokeEchelonHandler contract
     */
    struct EchelonGateway {
        address ethDestinationAddress;
        address primeDestinationAddress;
        InvokeEchelonHandler invokeEchelonHandler;
    }

    /**
     * @notice a record of all EchelonGateways
     */
    mapping(address => EchelonGateway) public echelonGateways;

    /**
     * @notice Addresses that can send PRIME tokens when transferability is not enabled
     */
    mapping(address => bool) public isAllowlistFrom;

    /**
     * @notice Addresses that can receive PRIME tokens when transferability is not enabled
     */
    mapping(address => bool) public isAllowlistTo;

    /**
     * @notice Constant for checking if transferring for general public is unlocked
     */
    bool public unlocked = false;

    /**
     * @dev Use ECHELON_INVOKER_CONFIGURATION_ROLE as DEFAULT_ADMIN_ROLE.
     *      Addresses with this role can set the invokeEchelonHandlerContractAddress, set the
     *      invokeEchelonDestination, and grant/revoke the ECHELON_INVOKER_CONFIGURATION_ROLE to other addresses
     */
    bytes32 public constant INVOKE_ECHELON_CONFIGURATION_ROLE =
        DEFAULT_ADMIN_ROLE;

    /**
     * @dev Governance address that will enable transferability
     *
     */
    bytes32 public constant UNLOCK_ROLE = keccak256("UNLOCK_ROLE");

    /**
     * @dev Transferability cannot be enabled before this time
     *
     */
    uint256 public _unlockTimestamp;

    /**
     * @dev Fired when a new gateway (i.e. echelon handler contract) is registered
     * @param contractAddress - The address of the newly registered invokeEchelon handler contract
     * @param ethDestinationAddress - The address to which ETH was collected
     * @param primeDestinationAddress - The address to which PRIME was collected
     */
    event EchelonGatewayRegistered(
        address indexed contractAddress,
        address indexed ethDestinationAddress,
        address indexed primeDestinationAddress
    );

    /**
     * @dev initialize a standard openzeppelin ERC20 with Fixed Supply
     *      grant deployer address ECHELON_INVOKER_CONFIGURATION_ROLE
     */
    constructor(
        address[] memory allowlistFrom,
        address[] memory allowlistTo,
        uint256 unlockTimestamp
    ) ERC20PresetFixedSupply(NAME, SYMBOL, SUPPLY, msg.sender) {
        _setupRole(INVOKE_ECHELON_CONFIGURATION_ROLE, msg.sender);
        _unlockTimestamp = unlockTimestamp;
        for (uint16 i = 0; i < allowlistFrom.length; i++) {
            isAllowlistFrom[allowlistFrom[i]] = true;
        }
        for (uint16 i = 0; i < allowlistTo.length; i++) {
            isAllowlistTo[allowlistTo[i]] = true;
        }
    }

    /**
     * @notice Allow the caller to send PRIME and/or ETH to the Echelon Ecosystem of smart contracts
     *         PRIME and ETH are collected to the destination address, handler is invoked to trigger downstream logic and events
     * @param _handlerAddress - The address of the deployed and registered InvokeEchelonHandler contract
     * @param _id - An id passed by the caller to represent any arbitrary and potentially off-chain event id
     * @param _primeValue - The amount of PRIME that was sent to the invokeEchelon function (and was collected to _destination)
     * @param _data - Catch-all param to allow the caller to pass additional data to the handler
     */
    function invokeEchelon(
        address _handlerAddress,
        uint256 _id,
        uint256 _primeValue,
        bytes memory _data
    ) public payable nonReentrant {
        require(msg.value + _primeValue > 0, "Must send ETH and/or PRIME");
        require(
            echelonGateways[_handlerAddress].primeDestinationAddress !=
                address(0),
            "No handler for given _handlerAddress"
        );

        EchelonGateway memory echelonGateway = echelonGateways[_handlerAddress];

        // send ETH to the ETH destination address if transaction includes ETH
        if (msg.value > 0) {
            (bool sent, bytes memory data) = echelonGateway
                .ethDestinationAddress
                .call{ value: msg.value }("");
            require(sent, "Failed to send ETH");
        }

        // send PRIME to the PRIME destination address if transaction includes PRIME
        if (_primeValue > 0) {
            _transfer(
                msg.sender,
                echelonGateway.primeDestinationAddress,
                _primeValue
            );
        }

        // invoke the handler function with all transaction data
        echelonGateway.invokeEchelonHandler.handleInvokeEchelon(
            msg.sender,
            echelonGateway.ethDestinationAddress,
            echelonGateway.primeDestinationAddress,
            _id,
            msg.value,
            _primeValue,
            _data
        );
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Preventing renouncing role.
     */
    function renounceRole(bytes32, address) public virtual override {
        revert("Cannot renounce role");
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     * - the caller must not be the account
     */
    function revokeRole(bytes32 role, address account)
        public
        virtual
        override
        onlyRole(getRoleAdmin(role))
    {
        require(account != _msgSender(), "Cannot revoke role from self");
        _revokeRole(role, account);
    }

    /**
     * @notice Enable transferability of PRIME tokens
     */
    function executeUnlock() external onlyRole(UNLOCK_ROLE) {
        require(
            block.timestamp > _unlockTimestamp,
            "Must be after _unlockTimestamp"
        );
        unlocked = true;
    }

    /**
     * @notice Allow an address with ECHELON_INVOKER_CONFIGURATION_ROLE to add a handler contract for invokeEchelon
     * @dev additional handler contracts will be added to support new use cases, existing handler contracts can never be
     *      deleted nor replaced
     * @param _contractAddress - The address of the new invokeEchelon handler contract to be registered
     * @param _ethDestinationAddress - The address to which ETH is collected
     * @param _primeDestinationAddress - The address to which PRIME is collected
     */
    function addEchelonHandlerContract(
        address _contractAddress,
        address _ethDestinationAddress,
        address _primeDestinationAddress
    ) public onlyRole(INVOKE_ECHELON_CONFIGURATION_ROLE) {
        require(
            _ethDestinationAddress != address(0) &&
                _primeDestinationAddress != address(0),
            "Destination addresses cannot be 0x0"
        );
        require(
            echelonGateways[_contractAddress].primeDestinationAddress ==
                address(0),
            "Can't overwrite existing gateway"
        );
        echelonGateways[_contractAddress] = EchelonGateway({
            ethDestinationAddress: _ethDestinationAddress,
            primeDestinationAddress: _primeDestinationAddress,
            invokeEchelonHandler: InvokeEchelonHandler(_contractAddress)
        });
        emit EchelonGatewayRegistered(
            _contractAddress,
            _ethDestinationAddress,
            _primeDestinationAddress
        );
    }

    /**
     * @notice Toggling allowlistFrom addresses for transferring
     * @param _allowlistAddresses - Addresses to be enabled/disabled in allowlistFrom
     * @param _toggle - Toggle on or off
     */
    function toggleAllowlistFrom(
        address[] memory _allowlistAddresses,
        bool _toggle
    ) external onlyRole(INVOKE_ECHELON_CONFIGURATION_ROLE) {
        for (uint256 i = 0; i < _allowlistAddresses.length; i++) {
            isAllowlistFrom[_allowlistAddresses[i]] = _toggle;
        }
    }

    /**
     * @notice Toggling allowlistTo addresses for transferring
     * @param _allowlistAddresses - Addresses to be enabled/disabled in allowlistTo
     * @param _toggle - Toggle on or off
     */
    function toggleAllowlistTo(
        address[] memory _allowlistAddresses,
        bool _toggle
    ) external onlyRole(INVOKE_ECHELON_CONFIGURATION_ROLE) {
        for (uint256 i = 0; i < _allowlistAddresses.length; i++) {
            isAllowlistTo[_allowlistAddresses[i]] = _toggle;
        }
    }

    /**
     * @notice Only allow transfer of PRIME if transfers are enabled or sender and/or receiver are allowlisted
     * @dev Hook that is called after any transfer of tokens. This includes minting and burning.
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256
    ) internal virtual override {
        require(
            unlocked ||
                (isAllowlistFrom[from] || isAllowlistTo[to]) ||
                (from == address(0)),
            "Transfers not currently supported"
        );
    }
}

File 3 of 13 : ERC20PresetFixedSupply.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/presets/ERC20PresetFixedSupply.sol)
pragma solidity ^0.8.0;

import "../extensions/ERC20Burnable.sol";

/**
 * @dev {ERC20} token, including:
 *
 *  - Preminted initial supply
 *  - Ability for holders to burn (destroy) their tokens
 *  - No access control mechanism (for minting/pausing) and hence no governance
 *
 * This contract uses {ERC20Burnable} to include burn capabilities - head to
 * its documentation for details.
 *
 * _Available since v3.4._
 *
 * _Deprecated in favor of https://wizard.openzeppelin.com/[Contracts Wizard]._
 */
contract ERC20PresetFixedSupply is ERC20Burnable {
    /**
     * @dev Mints `initialSupply` amount of token and transfers them to `owner`.
     *
     * See {ERC20-constructor}.
     */
    constructor(
        string memory name,
        string memory symbol,
        uint256 initialSupply,
        address owner
    ) ERC20(name, symbol) {
        _mint(owner, initialSupply);
    }
}

File 4 of 13 : AccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `_msgSender()` is missing `role`.
     * Overriding this function changes the behavior of the {onlyRole} modifier.
     *
     * Format of the revert message is described in {_checkRole}.
     *
     * _Available since v4.6._
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(uint160(account), 20),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

File 5 of 13 : ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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].
 */
abstract 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;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

File 6 of 13 : ERC20Burnable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../../../utils/Context.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        _spendAllowance(account, _msgSender(), amount);
        _burn(account, amount);
    }
}

File 7 of 13 : ERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `sender` to `recipient`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
        }
        _balances[to] += amount;

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

File 8 of 13 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

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

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

File 9 of 13 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

File 10 of 13 : IERC20Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

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

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

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

File 11 of 13 : IAccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

File 12 of 13 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

File 13 of 13 : ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

File 14 of 13 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

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ddress"}],"name":"echelonGateways","outputs":[{"internalType":"address","name":"ethDestinationAddress","type":"address"},{"internalType":"address","name":"primeDestinationAddress","type":"address"},{"internalType":"contract InvokeEchelonHandler","name":"invokeEchelonHandler","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"executeUnlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_handlerAddress","type":"address"},{"internalType":"uint256","name":"_id","type":"uint256"},{"internalType":"uint256","name":"_primeValue","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"invokeEchelon","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isAllowlistFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isAllowlistTo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"},{"internalType":"address","name":"","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_allowlistAddresses","type":"address[]"},{"internalType":"bool","name":"_toggle","type":"bool"}],"name":"toggleAllowlistFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_allowlistAddresses","type":"address[]"},{"internalType":"bool","name":"_toggle","type":"bool"}],"name":"toggleAllowlistTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unlocked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000063b1135000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000063b11350
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000000


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OVERVIEW

The Echelon Prime Foundation is a Web3 ecosystem advancing the next-gen of gaming. Echelon creates and distributes tools to encourage innovation in, and promote the growth of, games. These tools encompass smart contract libraries, communication infrastructure, governance frameworks and more.

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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.