The Vitalik Collection

Arbiter registry by Vitalik Buterin (Sep 2015). Pay 1+ ETH to list yourself. Fee decays 50%/month. One of the earliest on-chain reputation systems on Ethereum.

On-chain escrow by Vitalik Buterin (Sep 2015). Two parties designate arbiters; majority vote releases funds. One of the earliest smart contract dispute systems.

Second deployment of Vitalik's on-chain escrow (Oct 2015). Arbiters vote to release escrowed funds. Identical bytecode to the Sep 28 instance.

Vitalik Buterin private lottery contract (Oct 2015). Single function: get(string). Minimum 0.007 ETH. Uses sha3+blockhash for randomness. Source not in any publ

Vitalik Buterin private lottery contract (Oct 2015). Single function: get(string). Minimum 0.007 ETH. Uses sha3+blockhash for randomness. Source not in any publ

Vitalik Buterin private lottery contract (Oct 2015). Three functions including a bet function (min 0.008 ETH) that calls an internal get(string) with hardcoded

Vitalik Buterin private lottery contract (Oct 2015). Three functions including a bet function (min 0.008 ETH) that calls an internal get(string) with hardcoded

Vitalik Buterin private lottery contract (Oct 2015). Most-used of the series. Three functions including bet (min 0.008 ETH). Source not in any public repo.

Vitalik Buterin private lottery contract (Oct 2015). Single function: get(string). Minimum 0.007 ETH. Uses sha3+blockhash for randomness. Source not in any publ

On-chain log aggregator: records arbitrary events and break-points by block number

adStorer auction registry by Vitalik Buterin (Oct 2015). Manages 8 ad auction slots. From dapp-bin ether_ad. Intermediate version, source not in public repo.

Vitalik's 2015 ad-auction sandbox. Spawned 8 child auctions across 4 open-bid and 4 sealed-bid mechanisms.

A token contract deployed by Vitalik Buterin, compiled from currency.se (Serpent) in the ethereum/dapp-bin repository. Deployed days after Devcon 1 and one week before EIP-20 was published.

Dead man's switch: owner pings to stay alive, trustee can withdraw after 1000 seconds of inactivity

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

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

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.

Constructor-only contract that splits incoming ETH equally between Vitalik's two addresses; deployed a second time on October 30, 2016.

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.

A minimal Ether receiver that emits a Received event on every payment, deployed from Vitalik Buterin's testing address using Solidity 0.4.4.

A minimal Ether receiver that emits a Received event on every payment, deployed from Vitalik Buterin's testing address using Solidity 0.3.6.

Payable constructor that splits incoming ETH between Vitalik's two addresses; the 51-byte runtime stub embeds solc's swarm hash metadata.