ýÞ(ØA)

Unknown

Part of The Fabian Vogelsteller Collection

0xf6ed6e73a810...233455f510cf

FrontierContract #337Exact Bytecode MatchEdit this contract

Deployed August 20, 2015 (10 years ago)Block 115,568

45-byte factory-generated wallet proxy forwarding via CALLCODE to a shared EF multi-sig Wallet (0x4efc6389). Variant without the success-check. Deployed by Fabian Vogelsteller.

Frontier EraVerified Source

This contract is a proxy that delegates all calls to 0x4efc6389b88569a375668b7b3bd4a9b6c8f4a942. See the master contract for the full logic.

Token Information

Token Name

ýÞ

Symbol

ØA

Key Facts

Deployer

Fabian Vogelsteller(0x9b22a8...079e7f)

Deployment Block

115,568

Deployment Date

Aug 20, 2015, 08:30 AM

Code Size

521.0 B

Gas at Deploy

241,035

Deployment Transaction: 0x29200dd423749b2b...fbab277e77def2fc

Description

A thin 45-byte proxy stub deployed by Fabian Vogelsteller that forwards every call via CALLCODE (opcode 0xf2) to a shared master Wallet contract at 0x4efc6389b88569a375668b7b3bd4a9b6c8f4a942. CALLCODE runs the master's multi-signature wallet logic in this contract's own storage context, making the proxy an independent wallet sharing one code base. Unlike the 49-byte sibling proxies, this variant omits the ISZERO/JUMPI success guard and returns the 32-byte result unconditionally. The pattern predates DELEGATECALL (EIP-7, Homestead). Bytecode reproduces exactly; emitted by the wallet factory, not compiled from Solidity.

Source Verified

evm-assemblyExact bytecode match(521 bytes)

Compiler: Factory

View verification proof

Factory-generated 45-byte proxy stub. Uses CALLCODE to delegate to master Wallet at 0x4efc6389b88569a375668b7b3bd4a9b6c8f4a942. Not compiled from Solidity. This variant omits the success-check (ISZERO/JUMPI) present in the 49-byte proxy and returns 32 bytes unconditionally.

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

Opcodes521

Unique Opcodes90

Jump Instructions16

Storage Operations8

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

View Verification Proof

Show source code (Evm-assembly)

// Ethereum Foundation Wallet Proxy (variant)
// Generated by the Wallet factory contract, not compiled from Solidity source.
// This 45-byte stub forwards all calls to the master Wallet via CALLCODE.
//
// Master contract: 0x4efc6389b88569a375668b7b3bd4a9b6c8f4a942
//
// Equivalent EVM assembly:
//   CALLDATASIZE / PUSH1 0x00 / DUP1 / CALLDATACOPY   // copy calldata to memory
//   PUSH1 0x20 / PUSH1 0x00 / CALLDATASIZE / PUSH1 0x00 / CALLVALUE
//   PUSH20 0x4efc6389b88569a375668b7b3bd4a9b6c8f4a942 // master wallet
//   PUSH2 0x235a / GAS / SUB / CALLCODE               // gas-9050, delegate via CALLCODE
//   PUSH1 0x20 / PUSH1 0x00 / RETURN                  // return 32 bytes (no success check)
//
// This variant omits the ISZERO/JUMPI success guard of the 49-byte proxy and returns the
// 32-byte result unconditionally. CALLCODE (0xf2) runs the master's logic in this contract's
// storage — the pre-DELEGATECALL delegation pattern.
//
// Raw bytecode (45 bytes):
// 36600080376020600036600034734efc6389b88569a375668b7b3bd4a9b6c8f4a94261235a5a03f260206000f3

External Links

Etherscan Verified Source (if any)

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