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

Migrations

other

Standard Truffle Migrations (unoptimized variant). Cluster of 25 identical deployments.

0x23161c...cc3e28October 18, 2018

autobreeder (lite) by harm van den dorpel, 2016, 100 editions

unknown

Autobreeder (lite), Harm van den Dorpel’s 100-edition artwork tokenized on Ethereum in 2018.

0x842d8b...0518eaOctober 18, 2018

Empty

other

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

0xee8d67...6ef3a6October 20, 2018

Migrations

other

Migrations 760 sibling — cluster of 20 identical deployments.

0x0db7d4...595e89October 20, 2018

Migrations

other

Standard Truffle Migrations (unoptimized variant). Cluster of 22 identical deployments.

0x09dc9b...1477ddOctober 20, 2018

GlobalSocialEthereum

unknown

GlobalSocialEthereum (GSE) is an ERC-20 token launched on Ethereum in October 2018 that distributed its supply through an open on-chain claim function.

0xf30c81...5b155cOctober 21, 2018

ESSECHAIN

token

EsseChain (ESSE) is an ERC-20 token launched on Ethereum in October 2018 that distributed its 3-billion supply through an open on-chain claim function.

0x4c65f9...f6f6f4October 22, 2018

Migrations

other

Full standard Truffle Migrations contract with `upgrade(address)`. Cluster of 18 identical deployments.

0x31d6c7...152758October 22, 2018

UserWallet

Withdrawal-only wallet that resolves its executor from a registry on every call and delegatecalls it with the request untouched.

0xc938f8...738094October 22, 2018

Migrations

other

Migrations 572 sibling cluster of 16 identical deployments.

0x363986...22643dOctober 22, 2018

Migrations

other

Migrations 760 sibling — cluster of 30 identical deployments.

0x082758...f0daecOctober 23, 2018

Sender

other

Owner-only ERC-20 sender — `SendTokens(uint256 amount)` calls `token.transfer(owner, amount)` after verifying `msg.sender == owner`. Cluster of 177 identical deployments.

0x00660e...24383eOctober 24, 2018

UserWallet

Deposit wallet with an ERC-223 receive hook, routing token sweeps through a shared sweeper registry by delegatecall.

0x6e0097...ea460aOctober 27, 2018

Wallet

other

Token sweeper that moves a whole ERC20 balance to a chosen address, gated on an admin with the revert reason only for admin.

0x003fdc...a89ebfOctober 29, 2018

TetherToken

other

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

0x0b8780...f95871October 30, 2018

TetherToken

other

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

0xeebb3c...4c9845October 30, 2018

TetherToken

other

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

0x20927b...131bedOctober 30, 2018

TetherToken

other

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

0x81c8c7...55d8acOctober 30, 2018

TetherToken

other

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

0x513ac1...604a41October 30, 2018

Migrations

other

Standard Truffle Migrations (unoptimized variant). Cluster of 15 identical deployments.

0x0a8396...622c9eOctober 30, 2018

Migrations

other

Migrations 760 sibling cluster of 31 identical deployments.

0x04652a...f3af72October 31, 2018

Migrations

other

Standard Truffle Migrations (unoptimized variant). Cluster of 32 identical deployments.

0x035c93...ecd9a4October 31, 2018

TetherToken

other

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

0x44eb4b...d27530November 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.

0x376bcb...916018November 1, 2018
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