Contract 0x7a3cdb2364f92369a602cae81167d0679087e6a3 4

Txn Hash Method
Block
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Value [Txn Fee]
0x14cfa0dffc2f37d7c06c0ecdaa2d6a85050c925ad106f995b5347ccf2cf13440Bulk Transfer115495242023-12-11 2:39:446 mins ago0xf90b0a0cc05dc1d58f3be940ec00c60c83759d43 IN  EbisusBay: Port0 CRO1.580905645072 4,653.226091034
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0x6f1f5a215579775756b9969ba16b7a416c742d2231508f068daf3d98a4fa9253Make Listings115494592023-12-11 2:33:3112 mins ago0x3f0dff6014836fa3e7308c1ed7b46b9b101977ea IN  EbisusBay: Port0 CRO73.82676016877 4,604.67048521
0x826da882df34d6f517ea3dadccfbcc1b73d6dac2c100a0ca103b7e4ca6eb35aaBulk Transfer115491582023-12-11 2:04:5041 mins agoCronos ID Name hopeland.cro IN  EbisusBay: Port0 CRO0.7217274965920
0xf267f6760139aa8cfb378d715be55dcdf33e11ba2969033229d25cdbf18f3e25Bulk Transfer115490042023-12-11 1:50:2855 mins ago0xf95ff5c35cb251c44872243ab7579a79dfbbf51f IN  EbisusBay: Port0 CRO16.804078737673 4,604.683508321
0x853449fc4ebdac24ce62b3f7bffe27116832b4a252155987deb13607b6b6933eBulk Transfer115489912023-12-11 1:49:1557 mins ago0x9f9f8f7babca2874237b224395ca692b96fdc923 IN  EbisusBay: Port0 CRO11.3354654304450
0x5d103a151cc29fa9bb79414b83ffbbe6c962c64807701d903528ba43ab927f6aWithdraw Payment...115489692023-12-11 1:47:1159 mins agoCronos ID Name liminalskingdom.cro IN  EbisusBay: Port0 CRO0.2086669905460
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0x95a7f18105bf5db374124a95b00b2d5fe3d6bf49f003092046e182cc39806177Bulk Transfer115486182023-12-11 1:14:191 hr 32 mins agoCronos ID Name cryptocrazy.cro IN  EbisusBay: Port0 CRO0.4741988009770
0xcf73bb4797bf542063e7643a506c0834c31cf8f9bf681c4ae8a4db0e2679217dBulk Transfer115483362023-12-11 0:47:581 hr 58 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO11.399745050023 4,604.712928111
0x1d8b33ef786461cfb5df4f6307608324ca6abc1fa8436cae670fe915180cdc8cBulk Transfer115483222023-12-11 0:46:401 hr 59 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO12.431441825371 4,604.713533499
0x9ede585ae0cff021cc148d59df0a97aed1002f67f231b891102a83cc16402b9cBulk Transfer115482532023-12-11 0:40:062 hrs 6 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO11.57914456933 4,604.716552129
0xff4bf3ffa47968e4e696a0583e134e3e8e2b7a175e2b9992ee59294c1968873cWithdraw Payment...115482392023-12-11 0:38:472 hrs 7 mins ago0xb6f737af7159d7c4711db5564f5238ea7e56908f IN  EbisusBay: Port0 CRO0.2086684470610
0xe98d3d61a5794d854c61ad969bf149f607b31223551415a1826b577b716320cdBulk Transfer115482382023-12-11 0:38:422 hrs 7 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO12.204411551173 4,604.717205107
0xac261f1eef6fd2b8ac327a93856fdcbbecb966c6a8a7bb6e0c16a7e656594e22Bulk Transfer115482212023-12-11 0:37:092 hrs 9 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO12.859526750267 4,604.717950742
0xff2635e548e90eaff7441c542e4d0cdaf478e72b8bd3dacb4b5ab27ddb8b2f6dMake Listings115481842023-12-11 0:33:382 hrs 12 mins ago0xe7f8fef648aa5b8dda04cb081296c21ea0e64124 IN  EbisusBay: Port0 CRO3.2824869488190
0x43f1aa5bf5169acedd2aac5fa0f0d84bc0ec12883c08e426b3b368e738269854Bulk Transfer115481612023-12-11 0:31:292 hrs 14 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO12.878118900229 4,604.720635426
0xcee8480a22fb8c07b620059006490ba81bd37e14ffffefad7c7407379e504d9dBulk Transfer115481442023-12-11 0:29:532 hrs 16 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO12.964606894421 4,604.721392384
0x7acb0d6ec75b55aa3bce4d57a37df9e3e68c4d8b16a102d101cba1b28771baf6Bulk Transfer115481232023-12-11 0:27:582 hrs 18 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO13.277435948249 4,604.722329222
0xbbd3f84aa99c4c424627f3e7cd1aa2ee6aa7608664b377bb90bbd7faa6f07af4Bulk Transfer115481062023-12-11 0:26:222 hrs 19 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO13.223535250327 4,604.723088925
0x14f42ca86145842c5706f2418929cd9bb5c594100450046e716ded115cea507fBulk Transfer115480892023-12-11 0:24:472 hrs 21 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO13.343665452602 4,604.723843399
0xd34b653faedc6d17735127fc182ab117ab81135735b6afdc77bd37a2ce610e61Bulk Transfer115480762023-12-11 0:23:332 hrs 22 mins ago0x727ad96393f7f13838eaa58ef2a795c7343d5d16 IN  EbisusBay: Port0 CRO0.6559456979220
0xd52458b9a12254d01e64db558f9703be4054239f17b8ae0a5c2e7fd7a8329084Bulk Transfer115480722023-12-11 0:23:102 hrs 23 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO13.040999118045 4,604.724607382
0x5dad056fccb6664b2c6b75675f0ee37ea9d08e73c3444d92f64e7db7892cd8f4Bulk Transfer115480562023-12-11 0:21:412 hrs 24 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO13.324679823215 4,604.725312711
0xb841b1e85c5af22e008e4cf2234f62da6df19d5e6f93e6478bcf92dc54275f49Bulk Transfer115480342023-12-11 0:19:372 hrs 26 mins ago0x90c2723479a0d009f96473f8c0ea30123ed811e4 IN  EbisusBay: Port0 CRO13.414124840726 4,604.72628522
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0xd4a0ed348f98d85ac179f946625e3f9432fdb865f77280e80fe18166580fe07d115491552023-12-11 2:04:3441 mins ago EbisusBay: PortRoo Finance: Deployer3.66 CRO
0xd4a0ed348f98d85ac179f946625e3f9432fdb865f77280e80fe18166580fe07d115491552023-12-11 2:04:3441 mins ago EbisusBay: Ship EbisusBay: Port3.66 CRO
0xd4a0ed348f98d85ac179f946625e3f9432fdb865f77280e80fe18166580fe07d115491552023-12-11 2:04:3441 mins ago EbisusBay: PortRoo Finance: Deployer3.6 CRO
0xd4a0ed348f98d85ac179f946625e3f9432fdb865f77280e80fe18166580fe07d115491552023-12-11 2:04:3441 mins ago EbisusBay: Ship EbisusBay: Port3.6 CRO
0xd4a0ed348f98d85ac179f946625e3f9432fdb865f77280e80fe18166580fe07d115491552023-12-11 2:04:3441 mins ago EbisusBay: PortRoo Finance: Deployer3.6 CRO
0xd4a0ed348f98d85ac179f946625e3f9432fdb865f77280e80fe18166580fe07d115491552023-12-11 2:04:3441 mins ago EbisusBay: Ship EbisusBay: Port3.6 CRO
0xd4a0ed348f98d85ac179f946625e3f9432fdb865f77280e80fe18166580fe07d115491552023-12-11 2:04:3441 mins ago EbisusBay: Ship EbisusBay: Port2.715 CRO
0x18b52a191b07911279eb26f780d846ef2667e27895b0eca1212e6419a7b9eb1f115491492023-12-11 2:04:0042 mins ago EbisusBay: PortRoo Finance: Deployer3.54 CRO
0x18b52a191b07911279eb26f780d846ef2667e27895b0eca1212e6419a7b9eb1f115491492023-12-11 2:04:0042 mins ago EbisusBay: Ship EbisusBay: Port3.54 CRO
0x18b52a191b07911279eb26f780d846ef2667e27895b0eca1212e6419a7b9eb1f115491492023-12-11 2:04:0042 mins ago EbisusBay: Ship EbisusBay: Port0.885 CRO
0x4b804cbbf81fcc3057cf0fde1b45a8bcd8a373ac2ef747ca3296e6d8ef067cb1115491482023-12-11 2:03:5442 mins ago EbisusBay: Port 0x39a3f70d1696093f8cad28e62bcbbf6c8fdf19d60.35 CRO
0x4b804cbbf81fcc3057cf0fde1b45a8bcd8a373ac2ef747ca3296e6d8ef067cb1115491482023-12-11 2:03:5442 mins ago EbisusBay: Ship EbisusBay: Port0.35 CRO
0x4b804cbbf81fcc3057cf0fde1b45a8bcd8a373ac2ef747ca3296e6d8ef067cb1115491482023-12-11 2:03:5442 mins ago EbisusBay: Port 0x39a3f70d1696093f8cad28e62bcbbf6c8fdf19d60.35 CRO
0x4b804cbbf81fcc3057cf0fde1b45a8bcd8a373ac2ef747ca3296e6d8ef067cb1115491482023-12-11 2:03:5442 mins ago EbisusBay: Ship EbisusBay: Port0.35 CRO
0x4b804cbbf81fcc3057cf0fde1b45a8bcd8a373ac2ef747ca3296e6d8ef067cb1115491482023-12-11 2:03:5442 mins ago EbisusBay: Ship EbisusBay: Port0.15 CRO
0x8c814a9039a0d3462fde1dc9dc0ff4a1e9de18fedc3f6bfd756f979b979f2a69115491442023-12-11 2:03:3242 mins ago EbisusBay: PortRoo Finance: Deployer3.54 CRO
0x8c814a9039a0d3462fde1dc9dc0ff4a1e9de18fedc3f6bfd756f979b979f2a69115491442023-12-11 2:03:3242 mins ago EbisusBay: Ship EbisusBay: Port3.54 CRO
0x8c814a9039a0d3462fde1dc9dc0ff4a1e9de18fedc3f6bfd756f979b979f2a69115491442023-12-11 2:03:3242 mins ago EbisusBay: Ship EbisusBay: Port0.885 CRO
0x802bfb2db9b6ca625f6fd6e21958430e47e9ed0af50a087169f258c366e1c22c115489762023-12-11 1:47:5058 mins ago EbisusBay: PortMad Meerkat Finance: Deployer53.5 CRO
0x802bfb2db9b6ca625f6fd6e21958430e47e9ed0af50a087169f258c366e1c22c115489762023-12-11 1:47:5058 mins ago EbisusBay: Ship EbisusBay: Port53.5 CRO
0x802bfb2db9b6ca625f6fd6e21958430e47e9ed0af50a087169f258c366e1c22c115489762023-12-11 1:47:5058 mins ago EbisusBay: Ship EbisusBay: Port16.05 CRO
0xe23330819ea16233308fcf13f887b7713ede087453907c5fed73b1147b1382f7115489232023-12-11 1:42:521 hr 3 mins ago 0x016b347aeb70cc45e3bbaf324feb3c7c464e18b0 EbisusBay: Port0.195 CRO
0xe23330819ea16233308fcf13f887b7713ede087453907c5fed73b1147b1382f7115489232023-12-11 1:42:521 hr 3 mins ago EbisusBay: Port 0x39a3f70d1696093f8cad28e62bcbbf6c8fdf19d60.65 CRO
0xe23330819ea16233308fcf13f887b7713ede087453907c5fed73b1147b1382f7115489232023-12-11 1:42:521 hr 3 mins ago 0x016b347aeb70cc45e3bbaf324feb3c7c464e18b0 EbisusBay: Port0.65 CRO
0x40515ad645c77847ac813545bfd7c0d26dd380aedab4489aa900cd95245786a6115489202023-12-11 1:42:351 hr 3 mins ago 0x016b347aeb70cc45e3bbaf324feb3c7c464e18b0 EbisusBay: Port0.18 CRO
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Similar Match Source Code
This contract matches the deployed ByteCode of the Source Code for Contract 0xc24205B12fB056822b2b2c42B5ee18272A0A8E74
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
ERC1967Proxy

Compiler Version
v0.8.2+commit.661d1103

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity)

/**
 *Submitted for verification at cronoscan.com on 2022-03-18
*/

// File contracts/proxy/Proxy.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 { revert(0, returndatasize()) }
            default { return(0, returndatasize()) }
        }
    }

    /**
     * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback () external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive () external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overriden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {
    }
}


// File contracts/proxy/beacon/IBeacon.sol

pragma solidity ^0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}


// File contracts/utils/Address.sol

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}


// File contracts/utils/StorageSlot.sol

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        assembly {
            r.slot := slot
        }
    }
}


// File contracts/proxy/ERC1967/ERC1967Upgrade.sol

pragma solidity ^0.8.2;



/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967Upgrade {
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @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 EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(newImplementation, data);
        }
    }

    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallSecure(address newImplementation, bytes memory data, bool forceCall) internal {
        address oldImplementation = _getImplementation();

        // Initial upgrade and setup call
        _setImplementation(newImplementation);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(newImplementation, data);
        }

        // Perform rollback test if not already in progress
        StorageSlot.BooleanSlot storage rollbackTesting = StorageSlot.getBooleanSlot(_ROLLBACK_SLOT);
        if (!rollbackTesting.value) {
            // Trigger rollback using upgradeTo from the new implementation
            rollbackTesting.value = true;
            Address.functionDelegateCall(
                newImplementation,
                abi.encodeWithSignature(
                    "upgradeTo(address)",
                    oldImplementation
                )
            );
            rollbackTesting.value = false;
            // Check rollback was effective
            require(oldImplementation == _getImplementation(), "ERC1967Upgrade: upgrade breaks further upgrades");
            // Finally reset to the new implementation and log the upgrade
            _setImplementation(newImplementation);
            emit Upgraded(newImplementation);
        }
    }

    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }

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

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Emitted when the beacon is upgraded.
     */
    event BeaconUpgraded(address indexed beacon);

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

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(
            Address.isContract(newBeacon),
            "ERC1967: new beacon is not a contract"
        );
        require(
            Address.isContract(IBeacon(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }
}


// File contracts/proxy/ERC1967/ERC1967Proxy.sol

pragma solidity ^0.8.0;


/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 */
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializating the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _upgradeToAndCall(_logic, _data, false);
    }

    /**
     * @dev Returns the current implementation address.
     */
    function _implementation() internal view virtual override returns (address impl) {
        return ERC1967Upgrade._getImplementation();
    }
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"beacon","type":"address"}],"name":"BeaconUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

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Deployed ByteCode Sourcemap

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Swarm Source

ipfs://9b8470f06e8a3960c912103fc2be177edaad69584ee3c7d2809ee737e79408e7
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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