Frontier Era
The initial release of Ethereum. A bare-bones implementation for technical users.
Congress
tokenAlex Van de Sande's Congress DAO from Dec 28, 2015: on-chain voting system for proposals with configurable quorum and majority threshold.
0x7f6b46...03f101December 28, 2015Congress
tokenAlex Van de Sande's Congress DAO from Dec 28, 2015: on-chain voting system for proposals with configurable quorum and majority threshold.
0x1e5cbb...b7ff63December 28, 2015Congress
daoA Congress DAO from the ethereum.org tutorial, deployed 28 December 2015, 23 minutes before the tutorial revision it came from was published.
0xe8e80d...4ed2daDecember 28, 2015Doge-ETH Bounty DAO
daoThe Doge-Ethereum Bounty DAO created by avsa on Dec 28, 2015. Funded over 5,400 ETH in bridge development, holds 50,000 MistCoin. Active 2015-2021.
0xdbf03b...c8c6fbDecember 28, 2015DAO
tokenDirect December 2015 ancestor of The DAO, deployed by slock.it five months before the mainnet launch that triggered the Ethereum hard fork.
0x54715d...cb564dDecember 29, 2015Contract 0xe6d67a9f...
unknownA liveness canary for the Ethereum Alarm Clock, deployed 31 December 2015.
0xe6d67a...112eecDecember 31, 2015Contract 0xd7a5e0ca...
unknownA one slot bytes32 store from the first days of 2016 that logs who wrote to it.
0xd7a5e0...a1de54January 1, 2016Store
utilityA one slot bytes32 store from the first days of 2016 that logs who wrote to it.
0x791e7f...f8a790January 1, 2016Contract 0xd66cefef...
unknownA one slot bytes32 store from the first days of 2016 that logs who wrote to it.
0xd66cef...47e5cfJanuary 1, 2016Contract 0xe2deb698...
unknownA one slot bytes32 store from the first days of 2016 that logs who wrote to it.
0xe2deb6...8d109cJanuary 2, 2016Stub
unknownA minimal owner-recording test contract Hudson Jameson deployed 89 seconds before his on-chain Marriage Registry. Runtime is the 6-byte empty body 0x606060405200.
0xd5d9ad...34c814January 2, 2016Marriage Registry
registryRecords marriages and life events on the Ethereum blockchain with partner details, dates, and status tracking.
0x58641c...cc79f4January 2, 2016Greeter
experimentalA classic Greeter contract from the official Solidity tutorial, storing and returning the string "Hello World!".
0x7350d2...acd373January 2, 2016CanaryV6
utilityA liveness canary for the Ethereum Alarm Clock, deployed 3 January 2016.
0xfc8a24...12b5e1January 3, 2016Contract 0xf9f0ce2e...
unknownA one slot bytes32 store from the first days of 2016 that logs who wrote to it.
0xf9f0ce...76c8ccJanuary 3, 2016Contract 0xce3d43fe...
unknownA liveness canary for the Ethereum Alarm Clock, deployed 3 January 2016.
0xce3d43...5f2a7bJanuary 3, 2016Contract 0xa57a759e...
daoA one question poll from 2015 that only its own creator is allowed to vote in.
0xa57a75...52263eJanuary 3, 2016Contract 0x2ddbbed8...
experimentalByte-identical deployment of: The classic Frontier 'greeter' (Jan 2016): a mortal-derived contract storing a constructor-set greeting returned by greet(), with
0x2ddbbe...f98316January 5, 2016Contract 0xb044496a...
unknownA liveness canary for the Ethereum Alarm Clock, deployed 5 January 2016.
0xb04449...382495January 5, 2016Contract 0xd8ec95d1...
unknownA liveness canary for the Ethereum Alarm Clock, deployed 5 January 2016.
0xd8ec95...15d6a4January 5, 2016Contract 0x8945302c...
experimentalAn ethereum.org 'Hello World' greeter (mortal + greeter): greet() returns its stored greeting, kill() selfdestructs to the owner. One of 68 byte-identical Front
0x894530...8e7022January 5, 2016Contract 0x89f82f0c...
experimentalA Frontier-era copy of the canonical ethereum.org greeter - greet() reads a stored string; the mortal base adds owner-only kill(). Shares its 366-byte runtime w
0x89f82f...a3b03fJanuary 5, 2016Contract 0xfcbeba4f...
experimentalA greeter from the early ethereum.org docs: returns a stored greeting via greet(), self-destructs to owner via kill(). Byte-identical to 67 sibling contracts.
0xfcbeba...46ff48January 5, 2016Contract 0x866b92e0...
unknownA liveness canary for the Ethereum Alarm Clock, deployed 7 January 2016.
0x866b92...e31bfbJanuary 7, 2016