Overview
ETH Balance
0 ETH
Eth Value
$0.00More Info
Private Name Tags
ContractCreator
Latest 25 from a total of 1,120 transactions
Transaction Hash |
Method
|
Block
|
From
|
To
|
|||||
---|---|---|---|---|---|---|---|---|---|
Sky To Mkr | 21478660 | 2 hrs ago | IN | 0 ETH | 0.00036806 | ||||
Sky To Mkr | 21472805 | 22 hrs ago | IN | 0 ETH | 0.00082386 | ||||
Mkr To Sky | 21471434 | 26 hrs ago | IN | 0 ETH | 0.0005819 | ||||
Mkr To Sky | 21470278 | 30 hrs ago | IN | 0 ETH | 0.00044995 | ||||
Mkr To Sky | 21461358 | 2 days ago | IN | 0 ETH | 0.00040266 | ||||
Mkr To Sky | 21457496 | 3 days ago | IN | 0 ETH | 0.00033015 | ||||
Mkr To Sky | 21450184 | 4 days ago | IN | 0 ETH | 0.00062798 | ||||
Mkr To Sky | 21449238 | 4 days ago | IN | 0 ETH | 0.00082279 | ||||
Mkr To Sky | 21445389 | 4 days ago | IN | 0 ETH | 0.00187301 | ||||
Mkr To Sky | 21445364 | 4 days ago | IN | 0 ETH | 0.00170597 | ||||
Mkr To Sky | 21442405 | 5 days ago | IN | 0 ETH | 0.0007664 | ||||
Sky To Mkr | 21439335 | 5 days ago | IN | 0 ETH | 0.00188071 | ||||
Sky To Mkr | 21439026 | 5 days ago | IN | 0 ETH | 0.00374791 | ||||
Mkr To Sky | 21435461 | 6 days ago | IN | 0 ETH | 0.00091467 | ||||
Sky To Mkr | 21434872 | 6 days ago | IN | 0 ETH | 0.00088324 | ||||
Sky To Mkr | 21434006 | 6 days ago | IN | 0 ETH | 0.00070851 | ||||
Mkr To Sky | 21432752 | 6 days ago | IN | 0 ETH | 0.00095457 | ||||
Sky To Mkr | 21420468 | 8 days ago | IN | 0 ETH | 0.00078073 | ||||
Mkr To Sky | 21420446 | 8 days ago | IN | 0 ETH | 0.00084369 | ||||
Mkr To Sky | 21419662 | 8 days ago | IN | 0 ETH | 0.00084413 | ||||
Mkr To Sky | 21414686 | 9 days ago | IN | 0 ETH | 0.00143752 | ||||
Mkr To Sky | 21412503 | 9 days ago | IN | 0 ETH | 0.00098659 | ||||
Mkr To Sky | 21412472 | 9 days ago | IN | 0 ETH | 0.00096791 | ||||
Mkr To Sky | 21412257 | 9 days ago | IN | 0 ETH | 0.00101162 | ||||
Mkr To Sky | 21411809 | 9 days ago | IN | 0 ETH | 0.00119476 |
View more zero value Internal Transactions in Advanced View mode
Advanced mode:
Loading...
Loading
Contract Name:
MkrSky
Compiler Version
v0.8.21+commit.d9974bed
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: AGPL-3.0-or-later /// MkrSky.sol -- Mkr/Sky Exchanger // Copyright (C) 2023 Dai Foundation // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU Affero General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Affero General Public License for more details. // // You should have received a copy of the GNU Affero General Public License // along with this program. If not, see <https://www.gnu.org/licenses/>. pragma solidity ^0.8.21; interface GemLike { function burn(address, uint256) external; function mint(address, uint256) external; } contract MkrSky { GemLike public immutable mkr; GemLike public immutable sky; uint256 public immutable rate; event MkrToSky(address indexed caller, address indexed usr, uint256 mkrAmt, uint256 skyAmt); event SkyToMkr(address indexed caller, address indexed usr, uint256 skyAmt, uint256 mkrAmt); constructor(address mkr_, address sky_, uint256 rate_) { mkr = GemLike(mkr_); sky = GemLike(sky_); rate = rate_; } function mkrToSky(address usr, uint256 mkrAmt) external { mkr.burn(msg.sender, mkrAmt); uint256 skyAmt = mkrAmt * rate; sky.mint(usr, skyAmt); emit MkrToSky(msg.sender, usr, mkrAmt, skyAmt); } function skyToMkr(address usr, uint256 skyAmt) external { sky.burn(msg.sender, skyAmt); uint256 mkrAmt = skyAmt / rate; // Rounding down, dust will be lost if it is not multiple of rate mkr.mint(usr, mkrAmt); emit SkyToMkr(msg.sender, usr, skyAmt, mkrAmt); } }
{ "remappings": [ "dss-interfaces/=lib/token-tests/lib/dss-test/lib/dss-interfaces/src/", "dss-test/=lib/token-tests/lib/dss-test/src/", "forge-std/=lib/token-tests/lib/dss-test/lib/forge-std/src/", "token-tests/=lib/token-tests/src/" ], "optimizer": { "enabled": true, "runs": 200 }, "metadata": { "useLiteralContent": false, "bytecodeHash": "ipfs", "appendCBOR": true }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "paris", "viaIR": false, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"mkr_","type":"address"},{"internalType":"address","name":"sky_","type":"address"},{"internalType":"uint256","name":"rate_","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"caller","type":"address"},{"indexed":true,"internalType":"address","name":"usr","type":"address"},{"indexed":false,"internalType":"uint256","name":"mkrAmt","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"skyAmt","type":"uint256"}],"name":"MkrToSky","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"caller","type":"address"},{"indexed":true,"internalType":"address","name":"usr","type":"address"},{"indexed":false,"internalType":"uint256","name":"skyAmt","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"mkrAmt","type":"uint256"}],"name":"SkyToMkr","type":"event"},{"inputs":[],"name":"mkr","outputs":[{"internalType":"contract GemLike","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"usr","type":"address"},{"internalType":"uint256","name":"mkrAmt","type":"uint256"}],"name":"mkrToSky","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sky","outputs":[{"internalType":"contract GemLike","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"usr","type":"address"},{"internalType":"uint256","name":"skyAmt","type":"uint256"}],"name":"skyToMkr","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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
Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000009f8f72aa9304c8b593d555f12ef6589cc3a579a200000000000000000000000056072c95faa701256059aa122697b133aded92790000000000000000000000000000000000000000000000000000000000005dc0
-----Decoded View---------------
Arg [0] : mkr_ (address): 0x9f8F72aA9304c8B593d555F12eF6589cC3A579A2
Arg [1] : sky_ (address): 0x56072C95FAA701256059aa122697B133aDEd9279
Arg [2] : rate_ (uint256): 24000
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000009f8f72aa9304c8b593d555f12ef6589cc3a579a2
Arg [1] : 00000000000000000000000056072c95faa701256059aa122697b133aded9279
Arg [2] : 0000000000000000000000000000000000000000000000000000000000005dc0
Loading...
Loading
Loading...
Loading
Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|
Loading...
Loading
[ Download: CSV Export ]
A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.