Frontier Era

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

The 2015 tutorial token renamed to MyToken, leaving its initialiser as a public function any account can call to set its own balance.

A minimal on-chain logging contract: addLog(s) emits a Log(string) event and addBreak() records the current block number as a section marker.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

A copy of the coin contract from the Frontier Guide where the contract was renamed but its constructor was not, leaving the supply function callable by anyone.

Variant of the ethereum.org 'Dapps for Beginners' subcurrency (Frontier 2015): sendCoin transfer, public coinBalanceOf mapping, CoinTransfer event, token() mint

Deployed by the account that deployed MistCoin eight days later. No constructor argument was given, so the supply fell to the built-in default of 10,000.

Byte identical to 0xE274d18EF7b194A1EDEbB04cfE297CFe1489ef65 and deployed two minutes and twelve seconds later from a different account. Supply 10,000.

A one question poll from 2015 that only its own creator is allowed to vote in.

The go-ethereum Contract Tutorial greeter, deployed with the greeting: Hello World!

A one question poll from 2015 that only its own creator is allowed to vote in.

A one question poll from 2015 that only its own creator is allowed to vote in.

A one question poll from 2015 that only its own creator is allowed to vote in.

A one question poll from 2015 that only its own creator is allowed to vote in.

An October 2015 token prototype whose balances sit in a public mapping named balances, read through a balanceOf function. Supply 132,325,360.

The October 2015 prototype where the Transfer event gained its indexed parameters, the form ERC-20 later required. Supply 10,000, never used.

A one question poll from 2015 that only its own creator is allowed to vote in.