SupplyCalculator

Description:

Multi-signature wallet contract requiring multiple confirmations for transaction execution.

Blockchain: Ethereum

Source Code: View Code On The Blockchain

Solidity Source Code:

{{
  "language": "Solidity",
  "sources": {
    "src/calculators/SupplyCalculator.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.26;

import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IZKC} from "../interfaces/IZKC.sol";
import {Supply} from "../libraries/Supply.sol";

/// @title Supply Calculator for ZKC tokens
/// @notice Contract computes various supply metrics of ZKC tokens, intended to be used by frontend apps/exchanges
contract SupplyCalculator is Initializable, AccessControlUpgradeable, UUPSUpgradeable {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    /// @notice Admin role identifier
    bytes32 public immutable ADMIN_ROLE = DEFAULT_ADMIN_ROLE;

    /// @notice Reference to the ZKC token contract
    IZKC public zkc;

    /// @notice Amount of tokens considered unlocked and in circulation
    uint256 public unlocked;

    /// @notice Emitted when the unlocked value is updated
    /// @param oldValue The previous unlocked value
    /// @param newValue The new unlocked value
    event UnlockedValueUpdated(uint256 oldValue, uint256 newValue);

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    /// @notice Initialize the SupplyCalculator contract
    /// @param _zkc Address of the ZKC token contract
    /// @param _initialUnlocked Initial value for the unlocked tokens
    /// @param _admin Address that will be granted the admin role
    function initialize(address _zkc, uint256 _initialUnlocked, address _admin) public initializer {
        require(_zkc != address(0), "ZKC address cannot be zero");
        require(_admin != address(0), "Admin address cannot be zero");

        __AccessControl_init();
        __UUPSUpgradeable_init();

        zkc = IZKC(_zkc);
        unlocked = _initialUnlocked;
        _grantRole(ADMIN_ROLE, _admin);
    }

    /// @notice Calculate the current circulating supply
    /// @dev Formula: unlocked + (zkc.claimedTotalSupply() - zkc.INITIAL_SUPPLY())
    /// @dev Essentially, unlocked tokens from the initial mint + claimed rewards from PoVW and staking rewards
    /// @return The current circulating supply of ZKC tokens
    function circulatingSupply() public view returns (uint256) {
        uint256 claimedTotal = zkc.claimedTotalSupply();
        uint256 initialSupply = Supply.INITIAL_SUPPLY;

        // Calculate the claimed rewards from PoVW and staking rewards
        uint256 claimedRewards = claimedTotal - initialSupply;

        return unlocked + claimedRewards;
    }

    /// @notice Calculate the current circulating supply rounded to the nearest whole token (18dp representation)
    /// @dev Returns value in wei (18 decimals) but rounded such that when converted to whole tokens it's rounded
    /// @return The current circulating supply rounded to nearest whole token in 18dp format
    function circulatingSupplyRounded() public view returns (uint256) {
        uint256 supply = circulatingSupply();
        return _roundTo18dp(supply);
    }

    /// @notice Calculate the current circulating supply as a rounded whole number
    /// @dev Returns the value in regular representation (divided by 10^18) rounded to nearest whole token
    /// @return The current circulating supply as a whole number
    function circulatingSupplyAmountRounded() public view returns (uint256) {
        uint256 supply = circulatingSupply();
        return _roundToWholeTokens(supply);
    }

    /// @notice Get the total supply
    /// @dev This represents the theoretical total supply of ZKC tokens based on the current epoch
    /// @return The total supply of ZKC tokens
    function totalSupply() public view returns (uint256) {
        return IERC20(address(zkc)).totalSupply();
    }

    /// @notice Get the total supply rounded to the nearest whole token (18dp representation)
    /// @dev Returns value in wei (18 decimals) but rounded such that when converted to whole tokens it's rounded
    /// @dev Uses the theoretical total supply based on current epoch
    /// @return The total supply rounded to nearest whole token in 18dp format
    function totalSupplyRounded() public view returns (uint256) {
        uint256 supply = IERC20(address(zkc)).totalSupply();
        return _roundTo18dp(supply);
    }

    /// @notice Get the total supply as a rounded whole number
    /// @dev Returns the value in regular representation (divided by 10^18) rounded to nearest whole token
    /// @dev Uses the theoretical total supply based on current epoch
    /// @return The total supply as a whole number
    function totalSupplyAmountRounded() public view returns (uint256) {
        uint256 supply = IERC20(address(zkc)).totalSupply();
        return _roundToWholeTokens(supply);
    }

    /// @notice Get the total claimed supply
    /// @dev This represents the initial supply that was minted and allocated to initial minters,
    ///      as well as tokens that have been claimed (and thus minted) via PoVW or Staking rewards.
    /// @return The total amount of tokens that have been claimed
    function claimedTotalSupply() public view returns (uint256) {
        return zkc.claimedTotalSupply();
    }

    /// @notice Get the claimed total supply rounded to the nearest whole token (18dp representation)
    /// @dev Returns value in wei (18 decimals) but rounded such that when converted to whole tokens it's rounded
    /// @dev Uses the actual claimed/minted supply
    /// @return The claimed total supply rounded to nearest whole token in 18dp format
    function claimedTotalSupplyRounded() public view returns (uint256) {
        uint256 supply = zkc.claimedTotalSupply();
        return _roundTo18dp(supply);
    }

    /// @notice Get the claimed total supply as a rounded whole number
    /// @dev Returns the value in regular representation (divided by 10^18) rounded to nearest whole token
    /// @dev Uses the actual claimed/minted supply
    /// @return The claimed total supply as a whole number
    function claimedTotalSupplyAmountRounded() public view returns (uint256) {
        uint256 supply = zkc.claimedTotalSupply();
        return _roundToWholeTokens(supply);
    }

    /// @notice Round a value to the nearest whole token (18dp representation)
    /// @dev Rounds to nearest 1e18, so when divided by 1e18 it gives a whole number
    /// @param value The value to round
    /// @return The rounded value in 18dp format
    function _roundTo18dp(uint256 value) private pure returns (uint256) {
        uint256 remainder = value % 1e18;
        if (remainder >= 5e17) {
            // Round up
            return value - remainder + 1e18;
        } else {
            // Round down
            return value - remainder;
        }
    }

    /// @notice Round a value to the nearest whole token and return as a whole number
    /// @dev Divides by 1e18 with rounding
    /// @param value The value to round
    /// @return The rounded value as a whole number
    function _roundToWholeTokens(uint256 value) private pure returns (uint256) {
        uint256 remainder = value % 1e18;
        if (remainder >= 5e17) {
            // Round up
            return (value / 1e18) + 1;
        } else {
            // Round down
            return value / 1e18;
        }
    }

    /// @notice Update the unlocked value
    /// @dev Only callable by accounts with ADMIN_ROLE
    /// @param _newUnlocked The new value for unlocked tokens
    function updateUnlockedValue(uint256 _newUnlocked) external onlyRole(ADMIN_ROLE) {
        uint256 oldValue = unlocked;
        unlocked = _newUnlocked;
        emit UnlockedValueUpdated(oldValue, _newUnlocked);
    }

    /// @notice Authorize contract upgrades (UUPS pattern)
    /// @dev Only accounts with ADMIN_ROLE can authorize upgrades
    /// @param newImplementation Address of the new implementation contract
    function _authorizeUpgrade(address newImplementation) internal override onlyRole(ADMIN_ROLE) {}
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/access/AccessControlUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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:
 *
 * ```solidity
 * 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}:
 *
 * ```solidity
 * 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. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;


    /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
    struct AccessControlStorage {
        mapping(bytes32 role => RoleData) _roles;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;

    function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
        assembly {
            $.slot := AccessControlStorageLocation
        }
    }

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    function __AccessControl_init() internal onlyInitializing {
    }

    function __AccessControl_init_unchained() internal onlyInitializing {
    }
    /// @inheritdoc IERC165
    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 returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @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 returns (bytes32) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        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.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual 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.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual 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 `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

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

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (!hasRole(role, account)) {
            $._roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` from `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (hasRole(role, account)) {
            $._roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @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]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reinitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Pointer to storage slot. Allows integrators to override it with a custom storage location.
     *
     * NOTE: Consider following the ERC-7201 formula to derive storage locations.
     */
    function _initializableStorageSlot() internal pure virtual returns (bytes32) {
        return INITIALIZABLE_STORAGE;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        bytes32 slot = _initializableStorageSlot();
        assembly {
            $.slot := slot
        }
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/UUPSUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (proxy/utils/UUPSUpgradeable.sol)

pragma solidity ^0.8.22;

import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";
import {Initializable} from "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    address private immutable __self = address(this);

    /**
     * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)`
     * and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
     * while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string.
     * If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must
     * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
     * during an upgrade.
     */
    string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";

    /**
     * @dev The call is from an unauthorized context.
     */
    error UUPSUnauthorizedCallContext();

    /**
     * @dev The storage `slot` is unsupported as a UUID.
     */
    error UUPSUnsupportedProxiableUUID(bytes32 slot);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC-1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC-1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        _checkProxy();
        _;
    }

    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        _checkNotDelegated();
        _;
    }

    function __UUPSUpgradeable_init() internal onlyInitializing {
    }

    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Implementation of the ERC-1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual notDelegated returns (bytes32) {
        return ERC1967Utils.IMPLEMENTATION_SLOT;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     *
     * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data);
    }

    /**
     * @dev Reverts if the execution is not performed via delegatecall or the execution
     * context is not of a proxy with an ERC-1967 compliant implementation pointing to self.
     */
    function _checkProxy() internal view virtual {
        if (
            address(this) == __self || // Must be called through delegatecall
            ERC1967Utils.getImplementation() != __self // Must be called through an active proxy
        ) {
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Reverts if the execution is performed via delegatecall.
     * See {notDelegated}.
     */
    function _checkNotDelegated() internal view virtual {
        if (address(this) != __self) {
            // Must not be called through delegatecall
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;

    /**
     * @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call.
     *
     * As a security check, {proxiableUUID} is invoked in the new implementation, and the return value
     * is expected to be the implementation slot in ERC-1967.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private {
        try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
            if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) {
                revert UUPSUnsupportedProxiableUUID(slot);
            }
            ERC1967Utils.upgradeToAndCall(newImplementation, data);
        } catch {
            // The implementation is not UUPS
            revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation);
        }
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}
"
    },
    "src/interfaces/IZKC.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.26;

/// @title IZKC
/// @notice Interface for the ZKC token with epoch-based emissions
/// @dev Defines ZKC-specific functionality for epoch-based reward distribution
interface IZKC {
    /// @notice Emitted when a recipient claims PoVW rewards.
    /// @param recipient The address that claimed the rewards
    /// @param amount The amount of ZKC tokens claimed
    /// @dev The reward amount could include ZKC that was earned across multiple epochs.
    event PoVWRewardsClaimed(address indexed recipient, uint256 amount);

    /// @notice Emitted when a recipient claims staking rewards.
    /// @param recipient The address that claimed the rewards
    /// @param amount The amount of ZKC tokens claimed
    /// @dev The reward amount could include ZKC that was earned across multiple epochs.
    event StakingRewardsClaimed(address indexed recipient, uint256 amount);

    error EpochNotEnded(uint256 epoch);
    error TotalAllocationExceeded();
    error EpochsNotStarted();

    /// @notice Perform initial token distribution to specified recipients
    /// @dev Only callable by designated initial minters
    /// @param recipients Array of addresses to receive tokens
    /// @param amounts Array of token amounts corresponding to each recipient
    function initialMint(address[] calldata recipients, uint256[] calldata amounts) external;

    /// @notice Mint PoVW rewards for a specific recipient
    /// @dev Only callable by addresses with POVW_MINTER_ROLE
    /// @param recipient Address to receive the minted rewards
    /// @param amount Amount of tokens to mint
    function mintPoVWRewardsForRecipient(address recipient, uint256 amount) external;

    /// @notice Mint staking rewards for a specific recipient
    /// @dev Only callable by addresses with STAKING_MINTER_ROLE
    /// @param recipient Address to receive the minted rewards
    /// @param amount Amount of tokens to mint
    function mintStakingRewardsForRecipient(address recipient, uint256 amount) external;

    /// @notice Get the total supply at the start of a specific epoch
    /// @dev ZKC is emitted at the end of each epoch, so this excludes rewards generated
    ///      as part of staking/work during the current epoch.
    /// @param epoch The epoch number (0-indexed)
    /// @return The total supply at the start of the epoch
    function getSupplyAtEpochStart(uint256 epoch) external pure returns (uint256);

    /// @notice Get the cumulative total PoVW emissions since genesis up to the start of a specific epoch
    /// @param epoch The epoch number
    /// @return Total PoVW emissions up to the epoch start
    function getTotalPoVWEmissionsAtEpochStart(uint256 epoch) external returns (uint256);

    /// @notice Get the cumulative total staking emissions since genesis up to the start of a specific epoch
    /// @param epoch The epoch number
    /// @return Total staking emissions up to the epoch start
    function getTotalStakingEmissionsAtEpochStart(uint256 epoch) external returns (uint256);

    /// @notice Get the total ZKC that will be emitted at the _end_ of the specified epoch
    /// @dev Includes both PoVW and staking rewards
    /// @param epoch The epoch number
    /// @return Total emissions for the epoch
    function getEmissionsForEpoch(uint256 epoch) external returns (uint256);

    /// @notice Get the PoVW emissions that will be emitted at the _end_ of the specified epoch
    /// @param epoch The epoch number
    /// @return PoVW emissions for the epoch
    function getPoVWEmissionsForEpoch(uint256 epoch) external returns (uint256);

    /// @notice Get the staking emissions that will be emitted at the _end_ of the specified epoch
    /// @param epoch The epoch number
    /// @return Staking emissions for the epoch
    function getStakingEmissionsForEpoch(uint256 epoch) external returns (uint256);

    /// @notice Get the current epoch number
    /// @dev Calculated based on time elapsed since deployment.
    /// @dev Reverts if epochs have not started yet.
    /// @return The current epoch number (0-indexed)
    function getCurrentEpoch() external view returns (uint256);

    /// @notice Get the current epoch end time
    /// @dev Returns the final timestamp at which the current epoch is active.
    ///      After this time, rewards will be emitted.
    /// @return The timestamp when the current epoch ends
    function getCurrentEpochEndTime() external view returns (uint256);

    /// @notice Get the start timestamp of a specific epoch
    /// @dev Reverts if epochs have not started yet.
    /// @param epoch The epoch number
    /// @return The timestamp when the epoch starts
    function getEpochStartTime(uint256 epoch) external view returns (uint256);

    /// @notice Get the end timestamp of a specific epoch
    /// @dev Returns the final timestamp at which the epoch is active
    /// @dev Reverts if epochs have not started yet.
    /// @param epoch The epoch number
    /// @return The timestamp when the epoch ends
    function getEpochEndTime(uint256 epoch) external view returns (uint256);

    /// @notice Get the actual minted and claimed total supply
    /// @dev This represents the initial supply that was minted and allocated to initial minters,
    ///      as well as tokens that have been claimed (and thus minted) via PoVW or Staking rewards.
    /// @return The total amount of tokens that have been claimed
    function claimedTotalSupply() external view returns (uint256);
}
"
    },
    "src/libraries/Supply.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.26;

import {UD60x18, ud, unwrap, pow, convert} from "lib/prb-math/src/UD60x18.sol";

/// @title ZKC Supply Library
/// @notice Library for calculating ZKC supply and emissions based on epoch
/// @dev Annual supply values and epoch scaling factors per year are precomputed for gas efficiency.
/// Precomputed values were created by running the script/PrecomputeSupply.s.sol script.
///
/// Inflation schedule:
/// - Year 0: 7.0% annual, reduces by 0.5% each year
/// - Year 8+: 3.0% annual (minimum rate)
library Supply {
    uint256 public constant INITIAL_SUPPLY = 1_000_000_000 * 10 ** 18; // 1 billion ZKC
    uint256 public constant EPOCHS_PER_YEAR = 182;
    uint256 public constant EPOCH_DURATION = 2 days;

    /// @notice Precomputed per-epoch growth factors (1e18 scaled)
    /// @dev Calculated with PRBMath UD60x18: r = (1 + annual_rate)^(1/182)
    uint256 public constant Y0_R_PER_EPOCH = 1000371819923688085; // Year 0: 7.000% annual
    uint256 public constant Y1_R_PER_EPOCH = 1000346075250234369; // Year 1: 6.500% annual
    uint256 public constant Y2_R_PER_EPOCH = 1000320210092156012; // Year 2: 6.000% annual
    uint256 public constant Y3_R_PER_EPOCH = 1000294223313256956; // Year 3: 5.500% annual
    uint256 public constant Y4_R_PER_EPOCH = 1000268113761178075; // Year 4: 5.000% annual
    uint256 public constant Y5_R_PER_EPOCH = 1000241880267088989; // Year 5: 4.500% annual
    uint256 public constant Y6_R_PER_EPOCH = 1000215521645372515; // Year 6: 4.000% annual
    uint256 public constant Y7_R_PER_EPOCH = 1000189036693301502; // Year 7: 3.500% annual
    uint256 public constant Y8_R_PER_EPOCH = 1000162424190707866; // Year 8+: 3.000% annual

    /// @dev Year 8 and beyond use the minimum 3% rate
    uint256 public constant FINAL_R_PER_EPOCH = Y8_R_PER_EPOCH;

    /// @notice Precomputed supply values at year boundaries for optimization
    /// @dev These values represent the total supply at the START of each year, where a year
    ///      is defined as 182 epochs.
    uint256 public constant SUPPLY_YEAR_0 = INITIAL_SUPPLY;
    uint256 public constant SUPPLY_YEAR_1 = 1069999999999998184000000000; // Supply at epoch 182
    uint256 public constant SUPPLY_YEAR_2 = 1139549999999995737640000000; // Supply at epoch 364
    uint256 public constant SUPPLY_YEAR_3 = 1207922999999993680269850000; // Supply at epoch 546
    uint256 public constant SUPPLY_YEAR_4 = 1274358764999991093195449750; // Supply at epoch 728
    uint256 public constant SUPPLY_YEAR_5 = 1338076703249988310681247227; // Supply at epoch 910
    uint256 public constant SUPPLY_YEAR_6 = 1398290154896235164707718388; // Supply at epoch 1092
    uint256 public constant SUPPLY_YEAR_7 = 1454221761092082452886442455; // Supply at epoch 1274
    uint256 public constant SUPPLY_YEAR_8 = 1505119522730302372125075313; // Supply at epoch 1456
    uint256 public constant SUPPLY_YEAR_9 = 1550273108412208360804045020; // Supply at epoch 1638

    /// @notice Calculate the total supply at the start of a given epoch
    /// @param epoch The epoch number (0-indexed)
    /// @return The total supply at the start of the epoch
    function getSupplyAtEpoch(uint256 epoch) internal pure returns (uint256) {
        if (epoch == 0) return SUPPLY_YEAR_0;

        // Determine which year this epoch falls into
        uint256 year = getYearForEpoch(epoch);

        // Start from the precomputed supply at the beginning of this year
        uint256 supply = _getSupplyAtYearBoundary(year);

        // Calculate the starting epoch for this year
        uint256 yearStartEpoch = year * EPOCHS_PER_YEAR;

        // Get the growth factor for this year
        uint256 growthFactor = _getGrowthFactorForYear(year);

        // Calculate how many epochs within the year we need to apply growth for
        uint256 epochsInYear = epoch - yearStartEpoch;

        if (epochsInYear == 0) {
            return supply;
        }

        // Calculate: supply * (growthFactor ^ epochsInYear)
        // Everything is scaled by 1e18 for PRBMath.
        UD60x18 supplyUD = ud(supply);
        UD60x18 factorUD = ud(growthFactor);
        UD60x18 epochsUD = convert(epochsInYear);

        // Calculate factor^epochs
        UD60x18 multiplierUD = pow(factorUD, epochsUD);

        // Apply to supply: supply * multiplier
        UD60x18 resultUD = supplyUD * multiplierUD;

        return unwrap(resultUD);
    }

    /// @notice Get precomputed supply at year boundary
    /// @param year The year number (0-indexed)
    /// @return The supply at the start of that year
    function _getSupplyAtYearBoundary(uint256 year) internal pure returns (uint256) {
        if (year == 0) return SUPPLY_YEAR_0;
        if (year == 1) return SUPPLY_YEAR_1;
        if (year == 2) return SUPPLY_YEAR_2;
        if (year == 3) return SUPPLY_YEAR_3;
        if (year == 4) return SUPPLY_YEAR_4;
        if (year == 5) return SUPPLY_YEAR_5;
        if (year == 6) return SUPPLY_YEAR_6;
        if (year == 7) return SUPPLY_YEAR_7;
        if (year == 8) return SUPPLY_YEAR_8;
        if (year == 9) return SUPPLY_YEAR_9;

        // For year 10+, calculate from year 9 using PRBMath
        uint256 supply = SUPPLY_YEAR_9;
        uint256 yearsToCalculate = year - 9;

        // Use PRBMath to calculate: supply * (FINAL_R_PER_EPOCH ^ (yearsToCalculate * EPOCHS_PER_YEAR))
        UD60x18 supplyUD = ud(supply);
        UD60x18 factorUD = ud(FINAL_R_PER_EPOCH);
        UD60x18 totalEpochsUD = convert(yearsToCalculate * EPOCHS_PER_YEAR);

        // Calculate factor^totalEpochs
        UD60x18 multiplierUD = pow(factorUD, totalEpochsUD);

        // Apply to supply: supply * multiplier
        UD60x18 resultUD = supplyUD * multiplierUD;

        return unwrap(resultUD);
    }

    /// @notice Get growth factor for a specific year
    /// @param year The year number (0-indexed)
    /// @return The per-epoch growth factor for that year
    function _getGrowthFactorForYear(uint256 year) internal pure returns (uint256) {
        if (year == 0) return Y0_R_PER_EPOCH;
        if (year == 1) return Y1_R_PER_EPOCH;
        if (year == 2) return Y2_R_PER_EPOCH;
        if (year == 3) return Y3_R_PER_EPOCH;
        if (year == 4) return Y4_R_PER_EPOCH;
        if (year == 5) return Y5_R_PER_EPOCH;
        if (year == 6) return Y6_R_PER_EPOCH;
        if (year == 7) return Y7_R_PER_EPOCH;

        // Year 8 and beyond use the minimum rate
        return FINAL_R_PER_EPOCH;
    }

    /// @notice Returns the amount of ZKC that will be emitted at the end of the provided epoch.
    /// @param epoch The epoch number
    /// @dev Caches supply calculations to save gas for batch mint scenarios.
    ///      There is possible repeated work, between the two getSupplyAtEpoch calls as they
    ///      one does exp(_, epoch) and the other does exp(_, epoch+1).
    /// @return The amount of new tokens to be emitted at the end of this epoch
    function getEmissionsForEpoch(uint256 epoch) internal returns (uint256) {
        uint256 supplyAtNextEpoch = _getCachedEpochSupply(epoch + 1);
        if (supplyAtNextEpoch == 0) {
            supplyAtNextEpoch = getSupplyAtEpoch(epoch + 1);
            _cacheEpochSupply(epoch + 1, supplyAtNextEpoch);
        }

        uint256 supplyAtEpoch = _getCachedEpochSupply(epoch);
        if (supplyAtEpoch == 0) {
            supplyAtEpoch = getSupplyAtEpoch(epoch);
            _cacheEpochSupply(epoch, supplyAtEpoch);
        }

        return supplyAtNextEpoch - supplyAtEpoch;
    }

    /// @notice Get which year a given epoch falls into
    /// @param epoch The epoch number (0-indexed)
    /// @return The year number (0-indexed)
    function getYearForEpoch(uint256 epoch) internal pure returns (uint256) {
        return epoch / EPOCHS_PER_YEAR;
    }

    /// @notice Supply values for epochs are cached, to enable efficient batch claims of epochs.
    /// @dev This is a transient storage cache, so it is not persisted across blocks.
    ///      NOTE: We do not need to clear the cache after use, as supply values are deterministic.
    /// @dev Apply a prefix to reduce risk of collisions with future tstore features.
    ///      Prefix is "ZKCEMISSIONS" hex encoded (0x5A4B43454D495353494F4E53) padded to 32 bytes.
    ///      Leaves 20 bytes for epoch (max epoch: 2^160 - 1).
    bytes32 private constant CACHE_PREFIX = 0x5A4B43454D495353494F4E530000000000000000000000000000000000000000;

    /// @notice Calculate transient storage slot for epoch supply cache
    /// @param epoch The epoch number to cache
    /// @return slot The transient storage slot
    function _getSupplyCacheSlot(uint256 epoch) private pure returns (bytes32 slot) {
        assembly {
            slot := or(CACHE_PREFIX, epoch)
        }
    }

    function _cacheEpochSupply(uint256 epoch, uint256 supply) internal {
        bytes32 slot = _getSupplyCacheSlot(epoch);
        assembly {
            tstore(slot, supply)
        }
    }

    function _getCachedEpochSupply(uint256 epoch) internal view returns (uint256 supply) {
        bytes32 slot = _getSupplyCacheSlot(epoch);
        assembly {
            supply := tload(slot)
        }
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/access/IAccessControl.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (access/IAccessControl.sol)

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC-165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @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 to signal this.
     */
    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. This account bears the admin role (for the granted role).
     * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
     */
    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 `callerConfirmation`.
     */
    function renounceRole(bytes32 role, address callerConfirmation) external;
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/utils/ContextUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    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;
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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);
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/utils/introspection/ERC165Upgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC-165 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);
 * }
 * ```
 */
abstract contract ERC165Upgradeable is Initializable, IERC165 {
    function __ERC165_init() internal onlyInitializing {
    }

    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /// @inheritdoc IERC165
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.20;

/**
 * @dev ERC-1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Utils.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.2.0) (proxy/ERC1967/ERC1967Utils.sol)

pragma solidity ^0.8.22;

import {IBeacon} from "../beacon/IBeacon.sol";
import {IERC1967} from "../../interfaces/IERC1967.sol";
import {Address} from "../../utils/Address.sol";
import {StorageSlot} from "../../utils/StorageSlot.sol";

/**
 * @dev This library provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[ERC-1967] slots.
 */
library ERC1967Utils {
    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev The `implementation` of the proxy is invalid.
     */
    error ERC1967InvalidImplementation(address implementation);

    /**
     * @dev The `admin` of the proxy is invalid.
     */
    error ERC1967InvalidAdmin(address admin);

    /**
     * @dev The `beacon` of the proxy is invalid.
     */
    error ERC1967InvalidBeacon(address beacon);

    /**
     * @dev An upgrade function sees `msg.value > 0` that may be lost.
     */
    error ERC1967NonPayable();

    /**
     * @dev Returns the current implementation address.
     */
    function getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the ERC-1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        if (newImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(newImplementation);
        }
        StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Performs implementation upgrade with additional setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) internal {
        _setImplementation(newImplementation);
        emit IERC1967.Upgraded(newImplementation);

        if (data.length > 0) {
            Address.functionDelegateCall(newImplementation, data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Returns the current admin.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by ERC-1967) using
     * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the ERC-1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        if (newAdmin == address(0)) {
            revert ERC1967InvalidAdmin(address(0));
        }
        StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {IERC1967-AdminChanged} event.
     */
    function changeAdmin(address newAdmin) internal {
        emit IERC1967.AdminChanged(getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Returns the current beacon.
     */
    function getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the ERC-1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        if (newBeacon.code.length == 0) {
            revert ERC1967InvalidBeacon(newBeacon);
        }

        StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;

        address beaconImplementation = IBeacon(newBeacon).implementation();
        if (beaconImplementation.code.length == 0) {
            revert ERC1967InvalidImplemen

Tags:
ERC20, ERC165, Multisig, Upgradeable, Multi-Signature, Factory|addr:0x1ff6f81ea7f5e6feafaafb0fc5983576096ded1d|verified:true|block:23587139|tx:0xd9620e57dc40e7b1e4ec67dd06f170d0c7345bb7ec6c65afd415e57e7703ac5f|first_check:1760604422

Submitted on: 2025-10-16 10:47:05

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