Wallet

0xc230e8b70dba...abd63062251b

FrontierContract #2,148Exact Bytecode MatchEdit this contract

Bytecode verified via sibling

This contract shares identical runtime bytecode with ýÞ (0xd2f06b96...) which has been verified through compiler archaeology.

Deployed October 16, 2015 (10 years ago)Block 393,811

A 49-byte CALLCODE forwarder for an early Ethereum multi-sig wallet, delegating every call to Gav Wood's shared wallet library.

Frontier EraVerified Source

Historical Significance

This is what an early Ethereum multi-sig wallet actually was on-chain: a few dozen bytes of forwarder plus a pointer to shared code. The split predates DELEGATECALL, which did not exist until Homestead, so it relies on CALLCODE and the tx.origin-based authorisation that CALLCODE forces. The pattern is the direct ancestor of today's proxy and implementation split, and this wallet code is the lineage later carried into the Parity multi-sig.

Context

Deployed 2015-10-16 by 0x4b3159e53b69bb568b7f41028d725929e3b53586. One of 111 byte-identical forwarders in the Ethereum History archive pointing at the shared wallet library at 0x273930d21e01ee25e4c219b63259d214872220a2, deployed by 63 distinct addresses between 2015-08-20 and 2015-10-17. Note that this contract's runtime is 49 bytes; the larger code size recorded against it is the size of its creation code, which differs between wallets because each constructor embeds that wallet's own owner list and daily limit.

This contract is a proxy that delegates all calls to 0x273930d21e01ee25e4c219b63259d214872220a2(Wallet). See the master contract for the full logic.

Key Facts

Deployer

0x4b3159...b53586

Deployment Block

393,811

Deployment Date

Oct 16, 2015, 07:35 PM

Code Size

502.0 B

Gas at Deploy

205,911

Transactions by Year

20154

Deployment Transaction: 0xbdbbc300e9aa61b5...e71416894ba2b194

Description

The entire runtime is 49 bytes: 3660008037602060003660003473273930d21e01ee25e4c219b63259d214872220a261235a5a03f21560015760206000f3. It copies all calldata to memory, then CALLCODEs 0x273930d21e01ee25e4c219b63259d214872220a2 forwarding the full call value and all remaining gas less 9050 (PUSH2 0x235a), and returns a fixed 32-byte window. On failure it jumps to offset 1, which is not a JUMPDEST, so the call throws and consumes the remaining gas in the Frontier manner. The contract holds no logic of its own: the multi-sig owner set, the confirmation queue and the daily limit all live in this address's storage and are operated by the shared library's code.

Source Verified

evm-assemblyExact bytecode match(502 bytes)

Compiler: Factory

View verification proof

Factory-generated 49-byte proxy stub. Uses CALLCODE to delegate to master Wallet at 0x273930d2. Not compiled from Solidity - bytecode template generated by Wallet factory. 1989 identical deployments.

Heuristic Analysis

The following characteristics were detected through bytecode analysis and may not be accurate.

Detected Type: Wallet

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

Opcodes502

Unique Opcodes83

Jump Instructions19

Storage Operations9

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

View Verification Proof

Show source code (Evm-assembly)

// Ethereum Foundation Wallet Proxy
// Generated by the Wallet factory contract, not compiled from Solidity source.
// This stub forwards all calls to the master Wallet contract via CALLCODE.
//
// Master contract: 0x273930d21e01ee25e4c219b63259d214872220a2
//
// Equivalent EVM assembly:
//
//   CALLDATASIZE       // push calldata size
//   PUSH1 0x00         // push 0
//   DUP1               // dup 0
//   CALLDATACOPY       // copy calldata to memory[0..]
//   PUSH1 0x20         // return size = 32
//   PUSH1 0x00         // return offset = 0
//   CALLDATASIZE       // args size = calldata size
//   PUSH1 0x00         // args offset = 0
//   CALLVALUE          // forward msg.value
//   PUSH20 0x273930d21e01ee25e4c219b63259d214872220a2  // master wallet
//   PUSH2 0x235a       // gas stipend (9050)
//   GAS                // remaining gas
//   SUB                // gas - 9050
//   CALLCODE           // execute master wallet code in this contract's context
//   ISZERO             // check success
//   PUSH1 0x01         // jump target
//   JUMPI              // if failed, jump to 0x01 (STOP)
//   PUSH1 0x20         // return 32 bytes
//   PUSH1 0x00         // from memory[0]
//   RETURN             // return result
//
// The proxy preserves this contract's storage while executing the master wallet's logic.
// This pattern predates Solidity's delegatecall — it uses CALLCODE (0xf2) which was
// the only option before EIP-7 introduced DELEGATECALL in the Homestead fork.
//
// Raw bytecode (49 bytes):
// 3660008037602060003660003473273930d21e01ee25e4c219b63259d214872220a261235a5a03f21560015760206000f3

External Links

Etherscan Verified Source (if any)

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