Byzantium Era

First Metropolis hard fork. Added zk-SNARK precompiles, REVERT opcode, and staticcall.

2017-10-16 to 2019-02-28
Blocks 4,370,000 to 7,279,999
427 documented contracts

Forwarder

other

Event-emitting ETH forwarder with a `flush()` sweep — payable fallback emits `LogForwarded` and forwards `msg.value` to a public destination; anyone can call `flush()` to sweep the balance and emit `LogFlushed`. Cluster of 36 identical deployments.

0x045b64...c4f6cdNovember 1, 2018

Forwarder

other

Event-emitting ETH forwarder with a `flush()` sweep. Cluster of 35 identical deployments.

0x1ae54a...72a358November 1, 2018

Forwarder

other

Fwd flush sibling cluster of 32 identical deployments.

0x3c8680...861b9dNovember 1, 2018

Forwarder

other

Fwd flush sibling — cluster of 31 identical deployments.

0x3edd6e...eaf511November 1, 2018

Forwarder

other

Fwd flush sibling — cluster of 33 identical deployments.

0x386b12...4b941dNovember 1, 2018

TetherToken

other

Tether's own USDT contract source, recompiled and redeployed in late 2018 as a template for throwaway tokens with placeholder names.

0xcafa92...a4d2f9November 2, 2018

Migrations

other

Migrations 572 sibling — cluster of 15 identical deployments.

0x17bf34...0eb36eNovember 2, 2018

TetherToken

other

Tether's own USDT contract source, recompiled and redeployed in late 2018 as a template for throwaway tokens with placeholder names.

0xfedf8b...b1198fNovember 3, 2018

Migrations

other

Migrations sibling — cluster of 17 identical deployments.

0x330793...9e9f21November 3, 2018

Migrations

other

Migrations 572 sibling — cluster of 15 identical deployments.

0x38d701...f014cdNovember 3, 2018

Retriever

other

Deposit address that forwards ether to a wallet the owner can change, with an owner-only rescue for any token that lands here.

0x5dba79...d3fa6aNovember 8, 2018

Forwarder

other

Deposit forwarder that requires a non-zero payment and routes it through an internal function to a stored wallet address.

0x00059a...22e947November 8, 2018

Recovered

Small guard contract that self-destructs to its controller and refuses every other caller.

0x00027b...e6ced3November 9, 2018

Escrow

other

Owner-controlled ERC-20 escrow, first of 4,463 identical deployments in November 2018. Two owner-only functions: withdraw() and refund(). Source verified by EthereumHistory.

0x683223...db5c57November 10, 2018

Empty

other

Trivial empty contract with reverting fallback. No functions, no state. First of 10 identical deployments.

0xa760b5...ef8cb0November 11, 2018

Empty

other

Trivial empty contract with reverting fallback. No functions, no state. Compiled with solc 0.4.24 optimizer ON. First of 11 identical deployments.

0x05d358...674b77November 11, 2018

UserWallet

Full Bittrex deposit wallet compiled without the optimizer.

0x000b30...4bd211November 13, 2018

Escrow

other

Two-party ERC20 escrow — `withdraw()` sends the locked amount to the beneficiary; `refund()` returns it to the refund address. Both restricted to the owner.

0x000326...618d43November 13, 2018

Recovered

Small guard contract that self-destructs to its controller and refuses every other caller.

0x000348...78b248November 13, 2018

Recovered

Small guard contract that self-destructs to its controller and refuses every other caller.

0x00018d...140a6aNovember 17, 2018

CKBirthBot

unknown

A CryptoKitties birth bot that earns midwife rewards while deploying self-destructing child contracts for gas refunds.

0x000000...c9a126November 17, 2018

CKBirthBotChild

A gas storage contract minted by CKBirthBot, a gas token derivative used by CryptoKitties-era bots to optimize transaction costs.

0x5b0b7f...17f488November 17, 2018

Forwarder

Deposit forwarder on OpenZeppelin Ownable v2 that reads its payout address from a registry and carries a revert reason for failed token moves.

0x7e9677...0431b9November 20, 2018

DepositContract

Version 2 of the Populous per-client deposit contract, extended from ERC20 custody to ether, ERC721 and ERC1155, and stamped with the client ID it belongs to.

0x324454...2dc8b3November 25, 2018
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