DAO Fork Era

An early on-chain corporation contract by cryptonomica.net, representing company shares as ERC-20 tokens with embedded voting — deployed hours before the DAO ha

Earliest ShapeShift on-chain contract (Jul 24, 2016). Simple ETH forwarder with an active flag — routes deposits to target when active and msg.value > 0.

DAO whitehat balance-conditional router: if EF/whitehat address holds >1M ETH, route to addr1; otherwise route to addr2.

ShapeShift ETH/ETC routing contract (Jul 26, 2016). Forwards ETH to target only when on-chain forked() oracle result matches stored boolean — routing deposits to the correct wallet on each chain post-DAO-fork.

ShapeShift ETH/ETC routing contract (Jul 26, 2016). Twin instance of the ShapeShiftReceiver — identical bytecode, configured for the opposite chain fork state.

ShapeShift conditional ETH splitter (Jul 26, 2016). split(address,uint) routes ETH to a specified address — but only on the ETC chain (where forked() returns false). Returns false on ETH chain.

ERC20-style 'I owe you a beer' IOU ledger by Nick Johnson (ENS). Each transfer creates a personal beer debt; obligations are tracked and transferable.

DAO-era ERC-20-shaped token, May 2016. Symbol is the Greek capital letter Xi. Fixed cap 15,000; 1 token per 0.001 ETH via buy().

2017 ERC-20 token tied to HashDB, an early Ethereum-backed data store; mintable via buy() with refund-on-overpay and frontend-bypass transferFrom.

An Ethereum smart contract that enables on-chain publishing and token-gated upvoting of posts.

A 2016 ConsenSys MyAdvancedToken (Japanese 「金」, "gold"), 100 supply, sold via buy() at 1000 wei/token.

An infinite-supply ERC-20-compatible token where every transfer mints a hug. Deployed August 23, 2016 by Jon Romero as a social experiment and Ethereum tutorial

Flight delay insurance experiment by Christoph Mussenbrock and team, built for participants flying to Devcon 2 in Shanghai. Predecessor to the Etherisc protocol

Vitalik's CREATE factory: pre-computes child address via RLP([self,0]), deploys moose.se, calls moose() to verify, emits Lol event

FirstBlood (1ST) was an ERC-20 token for a decentralized esports tournament platform. Its September 2016 crowdsale was notable for selling out rapidly, making i

Constructor-only contract that splits incoming ETH equally between Vitalik's two addresses; the deployed runtime is a 12-byte always-revert stub.

Simple 3-party escrow contract: partyA (beneficiary), partyB (refund recipient), arbiter (mediator). Either party can trigger payment to the other, or an arbiter can do so.

SingularDTV Fund contract — treasury and workshop management component of the SingularDTV decentralized entertainment platform (October 2016).

SingularDTV crowdfunding contract — managed the October 2016 token sale for the Ethereum-based decentralized entertainment platform, raising $7.5M in 17 minutes

The SNGLS token for SingularDTV, an Ethereum-based entertainment production and distribution platform that raised $7.5 million in its October 2016 token launch

Exchange deposit forwarder. Sweeps tokens from user deposit addresses to the exchange hot wallet. One of 4,163 identical deployments.

Augur's REP token distribution contract, one of the earliest DeFi applications on Ethereum, compiled in Serpent.

Possibly deployed by Vitalik Buterin (or somebody close to them)