Frontier Era
The initial release of Ethereum. A bare-bones implementation for technical users.
Contract 0xa85146c7...
utilitygo-ethereum's built-in hash registrar, mapping a key to a content hash
0xa85146...9bbf06August 10, 2015Contract 0x87ad8fed...
unknowngo-ethereum's built-in URL hinter, turning a content hash into a download location
0x87ad8f...46d9bcAugust 10, 2015WeiFaucet
unknownFaucet with per-address block-number cooldown.
0x793ae8...71f4f2August 10, 2015Multiply7
experimentalThe Multiply7 tutorial contract — one of the first Solidity examples ever deployed to mainnet.
0xfcb20a...b96d3fAugust 10, 2015token
tokenThe Frontier Guide's Coin tutorial contract: a pre-ERC-20 token with coinBalanceOf, sendCoin and a CoinTransfer event.
0xf30bf3...8f7db2August 10, 2015Mortal
unknownAn early standalone self-destruct contract that lets its deployer permanently kill the contract.
0x4c5a2d...63b56eAugust 10, 2015Mortal
utilityA standalone mortal base contract
0x281118...f0510bAugust 10, 2015Pyramid
ponziMember-added pyramid/chain list with equal-share claim distribution.
0xdf4b51...dc9b87August 10, 2015Contract 0x09d7d329...
unknownAug 8 2015 deploy by 0x8674c218 — one of the most prolific contract deployers of Ethereum's first day. Sibling of the verified MessagingContract / Ponzi / Messa
0x09d7d3...342c02August 10, 2015Greeter
utilityA Frontier-era Greeter with the message: 'Hello Eamonn'
0xd2c124...11cc63August 10, 2015Greeter
experimentalA Frontier-era Greeter contract with the message: 'Greetings Fuckface!'
0xd7dc1d...4de02bAugust 10, 2015Greeter
experimentalA Frontier-era Greeter contract with the message: 'Hello Adam!'
0x90ab39...6a9eceAugust 10, 2015Exchange
tokenOwner-controlled custody contract with Deposit/Transfer/IcapTransfer events.
0x0fa647...fd0bf6August 10, 2015Contract 0x17728339...
gameAn early on-chain lottery contract deployed on Frontier by the prolific 0xFD2605 deployer cluster.
0x177283...4664aaAugust 10, 2015Roulette
gameAn early Ethereum roulette contract from August 2015, notable for a critical randomness vulnerability: its 'private' seed is hardcoded to 1 in the constructor.
0x5fe5b7...25a4fdAugust 10, 2015Multiply7
experimentalThe canonical Solidity 'multiply by 7' tutorial contract from the Frontier documentation.
0xa18d71...418761August 10, 2015Greeter
experimentalA Frontier-era Greeter contract with the message: 'Hello! I'm Alec's first contract.'
0x29fc18...685a3cAugust 11, 2015Contract 0xa02ce439...
unknownAug 8 2015 deploy by 0x8674c218 — one of the most prolific contract deployers of Ethereum's first day. Sibling of the verified MessagingContract / Ponzi / Messa
0xa02ce4...9f25deAugust 11, 2015Contract 0x33824f7a...
unknownAug 8 2015 deploy by 0x8674c218 — one of the most prolific contract deployers of Ethereum's first day. Sibling of the verified MessagingContract / Ponzi / Messa
0x33824f...164f46August 11, 2015Ethereum Foundation Multisig Wallet Proxy
unknownA tiny CALLCODE proxy that forwards calls to the Ethereum Foundation multisig wallet library.
0xedf619...7b337aAugust 11, 2015token
tokenThe Frontier Guide's Coin tutorial contract: a pre-ERC-20 token with coinBalanceOf, sendCoin and a CoinTransfer event.
0x0150c3...390ad4August 11, 2015token
tokenThe Frontier Guide's Coin tutorial contract: a pre-ERC-20 token with coinBalanceOf, sendCoin and a CoinTransfer event.
0x553c1c...f1eb1aAugust 11, 2015Contract 0xdf373f3d...
unknownA 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, 2015Escrow
unknownA two-party ether release contract funded with 20 ETH, deployed 11 August 2015.
0x9e15f6...1223f0August 11, 2015