Back to HomeDeployer 0xfd2605...7f9e8c Deployment Block 76,425 Deployment Date Aug 12, 2015, 10:59 PM Code Size 144.0 B Gas at Deploy 54,067
Deployed August 12, 2015 (10 years ago)Block 76,425
Single view function returning `sha3(blockhash(n))`.
Frontier EraVerified Source
Key Facts
Deployment Transaction: 0x2813d711309b4188...1fb8bfb106834c2b
Description
Single view function returning sha3(blockhash(n)). Functions include sha(uint256). Verified with soljson-v0.1.1+commit.6ff4cd6 and optimizer OFF.
Source Verified
SolidityExact bytecode match(144 bytes)
Compiler: soljson
Backfilled from awesome-ethereum-proofs PR #31.
Heuristic Analysis
The following characteristics were detected through bytecode analysis and may not be accurate.
Detected Type: Unknown
Frontier Era
The initial release of Ethereum. A bare-bones implementation for technical users.
Block span: 0 — 1,149,999
July 30, 2015 — March 14, 2016
Bytecode Overview
Opcodes144
Unique Opcodes33
Jump Instructions5
Storage Operations1
Verified Source Available
Source verified through compiler archaeology and exact bytecode matching.
View Verification ProofShow source code (Solidity)
// Reconstructed source for 0x6837afb9e9fc1a908f9ce54756d3dba55a87ea27
// Compiler: solc 0.1.0 (no optimization)
// Match: 100% bytecode match against creation_bytecode.bin
contract C {
function sha(uint256 amount) returns (bytes32 r) {
r = sha3(block.blockhash(amount));
}
}