Deployed contract on Goerli : 0xE29ff6DA321397d10819DD9579dbcdcf817fF862
Runtime bytecode (30 bytes):
0x68601e8060093d393df35952383d59396009380160173d828234f050f0ff
Created
July 30, 2022 20:37
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| # ▇ => ▇ + ▇ | |
| # Minimal runtime bytecode for a contract that mutates | |
| # into two child contracts and then self-destructs | |
| # 1st child contract receives the call value | |
| # 2nd child contract recevies the remaining balance | |
| # author: Saw-mon and Natalie | |
| # constructor payload for the spawned contract | |
| # ┏━━━━━━━━━━━━━━━━━━━ push1 RUNTIME_BYTECODE_LEN # L | |
| # ┃ ┏━━━━━━━━━━━━━━━ dup1 # L L | |
| # ┃ ┃ ┏━━━━━━━━━━━━━ push1 RUNTIME_BYTECODE_OFFSET # O L L | |
| # ┃ ┃ ┃ ┏━━━━━━━━━ returndatasize # 0 O L L | |
| # ┃ ┃ ┃ ┃ ┏━━━━━━━ codecopy # L | |
| # ┃ ┃ ┃ ┃ ┃ ┏━━━━━ returndatasize # 0 L | |
| # ┃ ┃ ┃ ┃ ┃ ┃ ┏━━━ return | |
| push9 0x601e8060093d393df3 | |
| # ┗┻╍╍╍╍╍╍╍╍╍╍╍╍╍╍╍╍ The only important byte that varies. | |
| msize | |
| mstore # mem = 000...000 601e8060093d393df3 | |
| # = 000...000 spawned constructor payload | |
| # copy the runtime bytecode after the constructor code in mem | |
| codesize # cs | |
| returndatasize # 0 cs | |
| msize # 0x20 0 cs | |
| codecopy # mem = 000...000 601e8060093d393df3 RUNTIME_BYTECODE | |
| # --- stack --- | |
| push1 9 # 9 | |
| codesize # cs 9 | |
| add # cs+9 = CS = total codesize in memory | |
| push1 23 # 23 CS | |
| returndatasize # 0 23 CS | |
| dup3 # CS 0 23 CS | |
| dup3 # 23 CS 0 23 CS | |
| callvalue # v 23 CS 0 23 CS | |
| create # addr1 0 23 CS | |
| pop # 0 23 CS | |
| create # addr2 | |
| selfdestruct |
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