Unknown Contracts
Contracts whose type could not be automatically classified. These may include custom implementations, libraries, or experimental contracts.
Greeter
A Frontier-era Greeter contract with the message: 'Hello Adam!'
0x90ab39...6a9eceAugust 10, 2015Multiply7
The canonical Solidity 'multiply by 7' tutorial contract from the Frontier documentation.
0xa18d71...418761August 10, 2015Greeter
A Frontier-era Greeter contract with the message: 'Hello! I'm Alec's first contract.'
0x29fc18...685a3cAugust 11, 2015Ethereum Foundation Multisig Wallet Proxy
A tiny CALLCODE proxy that forwards calls to the Ethereum Foundation multisig wallet library.
0xedf619...7b337aAugust 11, 2015Contract 0xdf373f3d...
A pricing and deposit management contract from August 11, 2015, featured by ether.camp founder Roman Mandeleil as a notable early Frontier contract.
0xdf373f...b3f825August 11, 2015Contract 0x9e15f66b...
A time-locked escrow contract from August 11, 2015, funded with 20 ETH and featured on ether.camp as a notable early Frontier deployment.
0x9e15f6...1223f0August 11, 2015Greeter
A Frontier-era Greeter contract with the message: 'well hello there cc'
0x525d68...98a14bAugust 12, 2015Contract 0xc2ac6849...
A self-destructed Frontier-era contract from August 12, 2015, that processed over 520 ETH before being destroyed. Mentioned in the ether.camp launch thread.
0xc2ac68...66637eAugust 12, 2015Bounce
A minimal contract that immediately sends any received ETH back to the sender.
0x417705...bcae0fAugust 12, 2015HonestDice (1 ETH)
Commit-reveal dice game deployed day 13 of Ethereum mainnet with 1,000 ETH bankroll. Still active in 2026 with 84 ETH locked. 1% house edge, 1 ETH minimum bet.
0xd79b4c...f80456August 12, 2015Greeter
A Frontier-era Greeter contract with the message: 'Hello World!'
0x6f37b5...a6e609August 13, 2015Greeter
A Frontier-era Greeter contract with the message: 'Hello David!'
0x9aa0f9...a0dc9aAugust 13, 2015Forward
An early ETH forwarder contract that sends received value to a specified address.
0x54302c...6faf4aAugust 13, 2015Mortal
An early standalone self-destruct contract that lets its deployer permanently kill the contract.
0xb090c8...62a963August 14, 2015Greeter
A Frontier-era Greeter contract with the message: 'Hello My World!'
0x2e2f3f...ac90f2August 14, 2015Greeter
A Frontier-era Greeter with the message: 'Hello from the BBA and from Benthurst & Co.!'
0x20d06f...28bc73August 14, 2015Greeter
A Frontier-era Greeter with the message: 'Dublin rocks!'
0x23abee...1a77c3August 14, 2015Greeter
A Frontier-era Greeter with the message: 'O brave new world'
0xed3754...ce4339August 14, 2015MembershipRoster
An Ethereum Public Trust roster contract for adding, removing, and checking members.
0xf1d327...aa0455August 14, 2015Greeter
A Frontier-era Greeter with the message: 'Dublin really rocks!'
0xe40337...1a23f8August 14, 2015Greeter
A Frontier-era Greeter contract with the message: 'Cyperx says Hello'
0x5ade47...e1c9e4August 15, 2015Greeter
A Frontier-era Greeter with the message: 'Hello World!'
0xcdd1f5...615c1bAugust 15, 2015Greeter
A Frontier-era Greeter contract with the message: 'Hello World!'
0x12878a...9f81c3August 15, 2015Greeter
A Frontier-era Greeter contract with the message: 'Linuxakum zdar!'
0x4113ca...2b3d8bAugust 16, 2015