Contract 0x526f0A95EDC3DF4CBDB7bb37d4F7Ed451dB8e369 17

Contract Overview

Balance:
0 Ether

Token:
Txn Hash
Method
Block
From
To
Value
0xf642eb61f6df1c8ce338235e9ad8070de2812394f9786a41149a34add672f4e6Approve130651052022-09-29 7:44:245 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0x178990cb65ba16c576f13666070582c4980060b383c91abe1155486a0b3301bcApprove130650982022-09-29 7:42:127 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0xabc38d04fd430a7e5b5adcafcd59dc429d37723c11cd830c8624a979d43427e4Approve130650922022-09-29 7:41:009 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0xc27ae6f3042722bcb7987eadc8a9e65bb888df940b25be6b84df7f9c6ac75781Approve130650852022-09-29 7:38:4811 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0xcfcf7066b955b90341d5bd9f90aa41c56f3de7e428138b4b6d3e96109b2b3b9bApprove130650802022-09-29 7:37:2412 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0x0424f4f02b72e8bd76632fb77b635e1167c80e57e73f57e4d5a5b04241b537f3Approve130650702022-09-29 7:34:4815 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0x7d07e4d9cec6875439a18735766bf6516669cf72373983b56f9dd23fd815f2ecApprove130650662022-09-29 7:33:4816 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0x02d2d0792f674fe080c29333cf1aaf36c84d179cd1b9ad8b2a85bcafb019589fApprove130650602022-09-29 7:31:4818 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0x586457bc4f8585e2d1c3afa0f9b05096778ab4b78c36e027527b56c20e4b2018Approve130650542022-09-29 7:30:2419 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0x92b67ed0f285974e5b20a37d297cdd4f5b1a8d398c295a8cf25f044ef5fb9b88Approve130650532022-09-29 7:30:1219 mins ago0x7374eb44d1395d92e2d97d1d9c81ee764c69ef2c IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00000427 0.1
0x541ce40caec90c8ad900c30c825c89757710b4cdad0fb4e21f45646c03692a76Approve130650482022-09-29 7:29:1220 mins ago0xe1d3607c15b6fc94a3adf15ac08aeb9de3758b9f IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008974 1.5
0xd71cee90d04c604cf8fe80d39e3bc73a5cc4bdae2aa8b9d54160d5cf29e30243Approve130649392022-09-29 6:58:0052 mins ago0x131f246a693a65565d3880703855fb9f6d4039d6 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00005991 1.5
0xf3eb84043c83d4c258cebb04030ff84c4e26ea83398e0acb2b183e1627d8cb65Approve130649392022-09-29 6:58:0052 mins ago0x038f8333b31a65a61259bdd6f86d56075286134b IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00005991 1.5
0x0d5fa03deb8656ed5da1d28aec95f8d305014c3b65d1207edb07cda8479d2242Approve130649362022-09-29 6:57:1252 mins ago0x31a6c8123b70209e0733a2c59f944f924b552147 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00005991 1.5
0xb6f4e5902add8178a539b6bb98e15c3f51caea7fdf42d28985152b74fe4ac046Approve130649162022-09-29 6:51:3658 mins ago0x2214102b71160197e43136341f90187a3ba16396 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0xa9c861764f38e24027eedb6e0ad5a13386b7b4c555d90b76434bfd311a86c674Approve130649162022-09-29 6:51:3658 mins ago0x88f80ceea9f4f314f763bada448a4cc2f43b3582 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0xac75d66c396fdbccf1d069a4fbcd83028deff37a2db190247956670e6ffa8dc8Approve130649162022-09-29 6:51:3658 mins ago0x131f246a693a65565d3880703855fb9f6d4039d6 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0x804c751cd96890f97e7133495f70afafb2f85d976ce7390aa1720ae505f50141Approve130649162022-09-29 6:51:3658 mins ago0x31a6c8123b70209e0733a2c59f944f924b552147 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0x2c6405302e4725bd7f7a72e41febdc805e149b472aa284c09fad71d946068d89Approve130649162022-09-29 6:51:3658 mins ago0x038f8333b31a65a61259bdd6f86d56075286134b IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0x2369d37ea4df766369d931f762262e38b9d87ca4ad58afc5ad718b0b54392e60Approve130649162022-09-29 6:51:3658 mins ago0x1d477bf278dd8f314ccfb7b896fe539f8565d9c6 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0xb90d165d91a4f9cfd77b5e4ac10274d53dc1d053e18dcb7e4108beec84ae94e4Approve130649162022-09-29 6:51:3658 mins ago0x2d2117669bbae418759c55d13b258ff0ff45a1f0 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0xa80758c8600e5a5a57063d657dec4c2c3eac4cc9545482f64f4e5edd4c13a08cApprove130649162022-09-29 6:51:3658 mins ago0xcc3390c95fb05b35b62291f39f8fbd76fcaaff8e IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0x16f70a60d1bed98e15e600cc31523da209c83ca4230403ac7b67dd550d471403Approve130649162022-09-29 6:51:3658 mins ago0x09f3d97b4d58a6f0e8240c2a9d53beabf0155831 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0xcf5acc2c8956efe9be58e158a351e4c2e98d1e6d7494daf44ccb6603fae8e69cApprove130649162022-09-29 6:51:3658 mins ago0xc9e017393efcb3dc75b780b413b5b1d051f1c24b IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00008976 1.5
0xb32d99fca34947ae6b027ddc7e8f3518584734f1061da9c35b45a78165460f0dApprove130648942022-09-29 6:45:001 hr 5 mins ago0xca1b26df602d9d28f15604dfc599f7595ef93113 IN  0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether0.00006411 1.5
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Latest 25 internal transaction
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0xfa3204a5880e5862eaa124ddff5ed2924f04f70887f5564717f45851a8c603d0130651072022-09-29 7:45:005 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0xfa3204a5880e5862eaa124ddff5ed2924f04f70887f5564717f45851a8c603d0130651072022-09-29 7:45:005 mins ago 0xbc6fcce7c5487d43830a219ca6e7b83238b41e71 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether
0xf642eb61f6df1c8ce338235e9ad8070de2812394f9786a41149a34add672f4e6130651052022-09-29 7:44:245 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0xa81bd7880bf7730385661c074f401e372b70579898e45d16e02576a439c077b8130651032022-09-29 7:43:366 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0xa81bd7880bf7730385661c074f401e372b70579898e45d16e02576a439c077b8130651032022-09-29 7:43:366 mins ago 0xbc6fcce7c5487d43830a219ca6e7b83238b41e71 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether
0x178990cb65ba16c576f13666070582c4980060b383c91abe1155486a0b3301bc130650982022-09-29 7:42:127 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x327b3145caa8feee6cf2942621d98b8bf60b94c64db39a31ff21b3482e02402e130650952022-09-29 7:41:368 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x327b3145caa8feee6cf2942621d98b8bf60b94c64db39a31ff21b3482e02402e130650952022-09-29 7:41:368 mins ago 0xbc6fcce7c5487d43830a219ca6e7b83238b41e71 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether
0xabc38d04fd430a7e5b5adcafcd59dc429d37723c11cd830c8624a979d43427e4130650922022-09-29 7:41:009 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
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0xc27ae6f3042722bcb7987eadc8a9e65bb888df940b25be6b84df7f9c6ac75781130650852022-09-29 7:38:4811 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x0848082416a9edee7dad3ec91ea029a176c79e095fdf626effe6ae3f8c25acc4130650822022-09-29 7:38:0012 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x0848082416a9edee7dad3ec91ea029a176c79e095fdf626effe6ae3f8c25acc4130650822022-09-29 7:38:0012 mins ago 0xbc6fcce7c5487d43830a219ca6e7b83238b41e71 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether
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0x0424f4f02b72e8bd76632fb77b635e1167c80e57e73f57e4d5a5b04241b537f3130650702022-09-29 7:34:4815 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x731b15d03cbbef4891324e85c666ce6f6ba33d548ece2e5ba92aba01a0edd556130650672022-09-29 7:34:1215 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x731b15d03cbbef4891324e85c666ce6f6ba33d548ece2e5ba92aba01a0edd556130650672022-09-29 7:34:1215 mins ago 0xbc6fcce7c5487d43830a219ca6e7b83238b41e71 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether
0x7d07e4d9cec6875439a18735766bf6516669cf72373983b56f9dd23fd815f2ec130650662022-09-29 7:33:4816 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x6a7955d9c58e2b4c23591156541ad6bfeb61f8a81d5095c12e8ad37b8a3c612b130650622022-09-29 7:33:0017 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x6a7955d9c58e2b4c23591156541ad6bfeb61f8a81d5095c12e8ad37b8a3c612b130650622022-09-29 7:33:0017 mins ago 0xbc6fcce7c5487d43830a219ca6e7b83238b41e71 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e3690 Ether
0x02d2d0792f674fe080c29333cf1aaf36c84d179cd1b9ad8b2a85bcafb019589f130650602022-09-29 7:31:4818 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
0x8160c596ac96f9ac27b8f958abc7c9c36889cd5d30b25a385a3da7b9e6fb85f2130650562022-09-29 7:31:0019 mins ago 0x526f0a95edc3df4cbdb7bb37d4f7ed451db8e369 0x3e24c4ca6bafc652ab87dde5d553e3c0bbbad1880 Ether
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x82f03d6c9e6f04ffcd6ea7e423c443715f330936

Contract Name:
FiatTokenProxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 10000000 runs

Other Settings:
default evmVersion, MIT license
/**
 *Submitted for verification at Etherscan.io on 2022-03-13
*/

/**
 *Submitted for verification at Etherscan.io on 2021-09-20
*/

// File: contracts/upgradeability/Proxy.sol

/**
 * SPDX-License-Identifier: MIT
 *
 * Copyright (c) 2018 zOS Global Limited.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

pragma solidity 0.6.12;

/**
 * @notice Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 * @dev Forked from https://github.com/zeppelinos/zos-lib/blob/8a16ef3ad17ec7430e3a9d2b5e3f39b8204f8c8d/contracts/upgradeability/Proxy.sol
 * Modifications:
 * 1. Reformat and conform to Solidity 0.6 syntax (5/13/20)
 */
abstract contract Proxy {
    /**
     * @dev Fallback function.
     * Implemented entirely in `_fallback`.
     */
    fallback() external payable {
        _fallback();
    }

    /**
     * @return The Address of the implementation.
     */
    function _implementation() internal virtual view returns (address);

    /**
     * @dev Delegates execution to an implementation contract.
     * This is a low level function that doesn't return to its internal call site.
     * It will return to the external caller whatever the implementation returns.
     * @param implementation Address to delegate.
     */
    function _delegate(address implementation) internal {
        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 Function that is run as the first thing in the fallback function.
     * Can be redefined in derived contracts to add functionality.
     * Redefinitions must call super._willFallback().
     */
    function _willFallback() internal virtual {}

    /**
     * @dev fallback implementation.
     * Extracted to enable manual triggering.
     */
    function _fallback() internal {
        _willFallback();
        _delegate(_implementation());
    }
}

// File: @openzeppelin/contracts/utils/Address.sol

pragma solidity ^0.6.2;

/**
 * @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) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @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");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

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

pragma solidity 0.6.12;



/**
 * @notice This contract implements a proxy that allows to change the
 * implementation address to which it will delegate.
 * Such a change is called an implementation upgrade.
 * @dev Forked from https://github.com/zeppelinos/zos-lib/blob/8a16ef3ad17ec7430e3a9d2b5e3f39b8204f8c8d/contracts/upgradeability/UpgradeabilityProxy.sol
 * Modifications:
 * 1. Reformat, conform to Solidity 0.6 syntax, and add error messages (5/13/20)
 * 2. Use Address utility library from the latest OpenZeppelin (5/13/20)
 */
contract UpgradeabilityProxy is Proxy {
    /**
     * @dev Emitted when the implementation is upgraded.
     * @param implementation Address of the new implementation.
     */
    event Upgraded(address implementation);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "org.zeppelinos.proxy.implementation", and is
     * validated in the constructor.
     */
    bytes32
        private constant IMPLEMENTATION_SLOT = 0x7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c3;

    /**
     * @dev Contract constructor.
     * @param implementationContract Address of the initial implementation.
     */
    constructor(address implementationContract) public {
        assert(
            IMPLEMENTATION_SLOT ==
                keccak256("org.zeppelinos.proxy.implementation")
        );

        _setImplementation(implementationContract);
    }

    /**
     * @dev Returns the current implementation.
     * @return impl Address of the current implementation
     */
    function _implementation() internal override view returns (address impl) {
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            impl := sload(slot)
        }
    }

    /**
     * @dev Upgrades the proxy to a new implementation.
     * @param newImplementation Address of the new implementation.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Sets the implementation address of the proxy.
     * @param newImplementation Address of the new implementation.
     */
    function _setImplementation(address newImplementation) private {
        require(
            Address.isContract(newImplementation),
            "Cannot set a proxy implementation to a non-contract address"
        );

        bytes32 slot = IMPLEMENTATION_SLOT;

        assembly {
            sstore(slot, newImplementation)
        }
    }
}

// File: contracts/upgradeability/AdminUpgradeabilityProxy.sol

pragma solidity 0.6.12;


/**
 * @notice This contract combines an upgradeability proxy with an authorization
 * mechanism for administrative tasks.
 * @dev Forked from https://github.com/zeppelinos/zos-lib/blob/8a16ef3ad17ec7430e3a9d2b5e3f39b8204f8c8d/contracts/upgradeability/AdminUpgradeabilityProxy.sol
 * Modifications:
 * 1. Reformat, conform to Solidity 0.6 syntax, and add error messages (5/13/20)
 * 2. Remove ifAdmin modifier from admin() and implementation() (5/13/20)
 */
contract AdminUpgradeabilityProxy is UpgradeabilityProxy {
    /**
     * @dev Emitted when the administration has been transferred.
     * @param previousAdmin Address of the previous admin.
     * @param newAdmin Address of the new admin.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "org.zeppelinos.proxy.admin", and is
     * validated in the constructor.
     */
    bytes32
        private constant ADMIN_SLOT = 0x10d6a54a4754c8869d6886b5f5d7fbfa5b4522237ea5c60d11bc4e7a1ff9390b;

    /**
     * @dev Modifier to check whether the `msg.sender` is the admin.
     * If it is, it will run the function. Otherwise, it will delegate the call
     * to the implementation.
     */
    modifier ifAdmin() {
        if (msg.sender == _admin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * @dev Contract constructor.
     * It sets the `msg.sender` as the proxy administrator.
     * @param implementationContract address of the initial implementation.
     */
    constructor(address implementationContract)
        public
        UpgradeabilityProxy(implementationContract)
    {
        assert(ADMIN_SLOT == keccak256("org.zeppelinos.proxy.admin"));

        _setAdmin(msg.sender);
    }

    /**
     * @return The address of the proxy admin.
     */
    function admin() external view returns (address) {
        return _admin();
    }

    /**
     * @return The address of the implementation.
     */
    function implementation() external view returns (address) {
        return _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     * Only the current admin can call this function.
     * @param newAdmin Address to transfer proxy administration to.
     */
    function changeAdmin(address newAdmin) external ifAdmin {
        require(
            newAdmin != address(0),
            "Cannot change the admin of a proxy to the zero address"
        );
        emit AdminChanged(_admin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy.
     * Only the admin can call this function.
     * @param newImplementation Address of the new implementation.
     */
    function upgradeTo(address newImplementation) external ifAdmin {
        _upgradeTo(newImplementation);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy and call a function
     * on the new implementation.
     * This is useful to initialize the proxied contract.
     * @param newImplementation Address of the new implementation.
     * @param data Data to send as msg.data in the low level call.
     * It should include the signature and the parameters of the function to be
     * called, as described in
     * https://solidity.readthedocs.io/en/develop/abi-spec.html#function-selector-and-argument-encoding.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data)
        external
        payable
        ifAdmin
    {
        _upgradeTo(newImplementation);
        // prettier-ignore
        // solhint-disable-next-line avoid-low-level-calls
        (bool success,) = address(this).call{value: msg.value}(data);
        // solhint-disable-next-line reason-string
        require(success);
    }

    /**
     * @return adm The admin slot.
     */
    function _admin() internal view returns (address adm) {
        bytes32 slot = ADMIN_SLOT;

        assembly {
            adm := sload(slot)
        }
    }

    /**
     * @dev Sets the address of the proxy admin.
     * @param newAdmin Address of the new proxy admin.
     */
    function _setAdmin(address newAdmin) internal {
        bytes32 slot = ADMIN_SLOT;

        assembly {
            sstore(slot, newAdmin)
        }
    }

    /**
     * @dev Only fall back when the sender is not the admin.
     */
    function _willFallback() internal override {
        require(
            msg.sender != _admin(),
            "Cannot call fallback function from the proxy admin"
        );
        super._willFallback();
    }
}

// File: contracts/v1/FiatTokenProxy.sol

pragma solidity 0.6.12;

/**
 * @title FiatTokenProxy
 * @dev This contract proxies FiatToken calls and enables FiatToken upgrades
 */
contract FiatTokenProxy is AdminUpgradeabilityProxy {
    constructor(address implementationContract)
        public
        AdminUpgradeabilityProxy(implementationContract)
    {}
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"implementationContract","type":"address"}],"stateMutability":"nonpayable","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":false,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"}]

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Deployed ByteCode Sourcemap

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Swarm Source

ipfs://119e941d353783c92238fbc4e38a3a0327e471d10cff47c0a5066819d4a41956
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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