March 2016 mint-and-trade token from the MyToken Ethereum-tutorial lineage. Standard balance / allowance / freeze / mint / buy / sell surface, with the twist that the constructor never sets buyPrice or sellPrice — both stay at zero until the owner calls setPrices(), so buy() divides by zero and reverts and sell() returns nothing until prices are configured.
| Field | Value |
|---|---|
| Address | 0xabB6DE07f9Aac9d88bD74Bd931A8bBBce1a1860D |
| Deployed | Mar 18, 2016 (block 1,173,786) |
| Deployer | 0x2c7bd0008596b2832002d9fdc8253f198dd8b6e0 |
| Deploy tx | 0xcf94e94885b3bef265bc0516654259201621f75e1116b82b6ae7b38e69208e74 |
| Compiler | soljson v0.2.1+commit.91a6b35f |
| Optimizer | ON |
| Runtime | 2,228 bytes |
| Creation | 3,015 bytes (2,727 code + 288 constructor args) |
| Runtime SHA-256 | d767676e03eec6bfce55c7cb36368fddb6f99b0e8398cf8ee0ab801d9f440a20 |
| Creation SHA-256 | f814f31cba220e66126229b55acff79cdc840dce3cc5e005024635ca7ee2f109 |
| Token name / symbol | Fucks / 🖕 (U+1F595, encoded as f09f9695) |
| Decimals | 2 |
| Initial supply | 1,000,000 (constructor sets default when passed 0) |
| Proved by | @cartoonitunes |
node verify.jsThe script downloads soljson-v0.2.1+commit.91a6b35f, compiles Fucks.sol with the optimizer ON, and confirms the SHA-256 of the compiled runtime equals d767676e…. Output ends with VERIFIED: exact bytecode match.
The 288 bytes appended to the compiled creation code at the deploy tx:
| Param | Value |
|---|---|
initialSupply (uint256) |
0 → constructor falls back to 1000000 |
tokenName (string) |
"Fucks" (0x4675636b73) |
decimalUnits (uint8) |
2 |
tokenSymbol (string) |
"🖕" (0xf09f9695) |
centralMinter (address) |
0x2c7bd0008596b2832002d9fdc8253f198dd8b6e0 (same as deployer) |
centralMinter != 0, so the constructor sets owner = msg.sender, which is the deployer.
EthereumHistory's first verification recorded native solc v0.1.5 as the compiler. That was wrong: v0.1.5 emits the pre-nightly identity-precompile gas formula (words*3 + 15) in the public-string getter helper, while the on-chain bytecode uses the swapped formula (words*15 + 3) that solc adopted in v0.1.7-nightly.2015.11.19+commit.58110b27 and kept through v0.3.2. Sweeping the v0.2.x–v0.3.2 range against this source confirms an identical runtime; v0.2.1 (Feb 2016) is the soljson release closest to the deployment date.
Fucks.sol— reconstructed source (single file, two contracts:owned,tokenRecipient,MyToken)target_runtime.txt— on-chain runtime hex (2,228 bytes)verify.js— Node verification script