Byzantium Era

Minimal ETH sweeper, first of 1,900 identical deployments in a 2-day burst in January 2018. All sweep to a single hardcoded destination. Source verified by EthereumHistory.

ETH sweep-to-fixed-recipient — fallback forwards the contract's entire balance to `0xd293a88c…8d4` via `.send()` and reverts on failure. Massive cluster of 1899 identical deployments — likely deposit-address contracts for a single custodian.

CREX24 token deposit address from January 2018: one public function, sendCoin(token, amount), that pushes any ERC20 balance to the exchange's hardcoded wallet.

Deposit forwarder that asks a controller contract for its destination, forwards every incoming payment there, and logs the sender, the amount and the calldata.

User withdrawal account. Holds ETH and ERC20 tokens on behalf of a user and allows owner-authorized withdrawals to a registered user address.

Exchange deposit wallet that accepts ether and delegates token sweeps to a shared sweeper.

Deposit forwarder in the BitGo style, sending ether to a parent address and able to flush stranded tokens to the same place.

February 2018 hot-potato collectible game on Ethereum. Five tokens: Red, Blue, Lime, Yellow, Orange — each storing R/G/B values on-chain.

The original EIP-918 mineable token, Bitcoin's proof-of-work on Ethereum

Unoptimized collector that pushes ether and ERC-20 balances to a fixed wallet.

First deploy of CryptHall Of Fame by colmea.eth, abandoned 8 minutes later. No tokens were ever created on this instance. The canonical contract is at 0xb041de4

Feb 2018 personal NFT scrapbook by Belgian dev colmea.eth — 12 heroes (5 named: De Sprimont family, friend Hadrien, dog Noukie, Kylo Ren, belle panthère) on a C

Msg sibling — cluster of 279 identical deployments.

Trivial public-message store — single `string public m` variable with the auto-generated `m()` getter. Cluster of 280 identical deployments.

Upgradeable proxy that logs bare ether transfers as deposits and delegates everything else to a target supplied by a settings contract.

Owner-only forwarder that calls a stored address and function selector, passing on the ether sent.

ETH forwarder with administrative controls. Forwards incoming Ether to a parent address and supports flushTokens(ERC20) and a kill() self-destruct.

First 0xBitcoin clone, deployed 10 days after 0xBTC. Permanently bricked after 12 mints by a reward dust term and a recursive era-cap bug.

Operator-gated forwarder that checks the transaction origin against an exchange operator list before passing the call through to a target contract.

Relay that sweeps its whole balance to one hardcoded address on any bare payment, and lets one other hardcoded address execute arbitrary calls.

Owner-gated burner that calls burn on a fixed token and logs the amount destroyed.

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.

ERC-721 collectible card game of historical figures. mineCard() costs 0.001 ETH and randomly assigns a figure via block.timestamp randomness.

Axie (AXIE), an early Axie Infinity collectible contract deployed in March 2018.