Byzantium Era

Minimal view-only contract holding a single uint256 hash in state, exposed via getHash(). First of 328 identical siblings. Source verified by EthereumHistory.

Per-customer deposit wallet whose single sweep function looks the token up in a central list and delegatecalls whichever sweeper handles it.

OpenZeppelin's token vesting escrow: holds an ERC-20 balance for one beneficiary and releases it linearly after a cliff, with an optional owner revoke.

Token-generator output that bolts a self-service sale onto an ERC-20: send ether to the contract and it moves tokens out of the creator's balance to you.

BitGo WalletSimple multisig wallet. Requires two-of-three key signatures for sendMultiSig ETH transfers and sendMultiSigToken ERC20 transfers.

BitGo deposit forwarder that sweeps ether and ERC-20 tokens to its parent.

March 21, 2018 — genesis EtherMinerals NFT deploy by anonymous developer 'Elias', funded via ShapeShift, scaffolded from a Coursetro.com Solidity tutorial. 17 n

On-chain obituary for Mark H. Kane (1950 to 2015) of Richmond, deployed by his family in March 2018. 5 getters expose title, name, dates, body, poem.

Minimal ETH forwarder, first of 144 identical siblings. Payable fallback loads destination from state slot 0 and forwards msg.value via transfer(). Source verified by EthereumHistory.

The first Pokémon NFT collection on Ethereum (March 2018). 25 total Gen-1 Pokémon.

Deposit address that pushes ether onward the moment it arrives and can be told separately to sweep any ERC-20 balance it has collected.

Owner wallet that logs every deposit, executes arbitrary calls with value, and can be destroyed, with the owner check factored into a public predicate.

The original SuperRare (SUPR) art-token contract, deployed in April 2018.

Wallet that asks a controller to authorise each call, passing the sender, target, value and payload before executing it.

avsa's personal test of the ERC777 standard he co-authored — stripped-down ReferenceToken deployed from his wallet on Apr 5, 2018.

Storage sibling — cluster of 3 identical deployments.

ETH forwarder to a state-stored destination — payable fallback loads slot-0 address and forwards `msg.value` via `.send()`, reverting on failure. Cluster of 143 identical deployments.

April 2018 'Lambo' ERC-20 with a permissionless mint(), one free token per address. mintMore() gives 3 more LAMBO for a 1 finney payment.

April 2018 'Lambo' ERC-20 with a permissionless mint(), one free token per address. mintMore() gives 10 LAMBO for 1 wei, which is effectively free.

The Gnosis MultiSigWallet, in the revision that calls the destination directly rather than through the later assembly helper.

First mineable Litecoin on Ethereum, EIP-918 clone deployed April 2018

Second 0xDogecoin clone, deployed 2018-04-14 by the same address as 0xLTC. First working mineable Dogecoin on Ethereum, virgin until 2026.

Token collection wallet that moves an entire token balance to a chosen address and refuses to send to itself.

Owner-operated collection point for one token: sweep moves the whole balance to a destination the owner can change, and logs both actions with everything indexed.