Token Contracts

An early ERC-20-like token deployed in Ethereum's first week, built directly from the example in the official Ethereum Frontier Guide documentation.

A second deployment of the FirstCoin tutorial token by the same creator, 11 blocks after the original — both derived from the official Ethereum Frontier Guide e

Ethereum.org tutorial Coin contract deployed on Frontier day 1. Contains a bug: balance(address) ignores its argument and returns msg.sender balance.

Early tutorial-derived coin contract compiled with Solidity v0.1.1, deployed 9 days after Ethereum Frontier launch.

Tutorial-derived coin contract (Solidity v0.1.1), one of multiple token instances deployed by the same address on Aug 8, 2015.

Coin tutorial stub — mapping getter + empty function returning default bool.

Tutorial-derived coin contract (Solidity v0.1.1), one of multiple FirstCoin instances deployed by the same address on Aug 8, 2015.

Tutorial-derived coin contract (Solidity v0.1.1), one of multiple FirstCoin instances deployed by the same address on Aug 8, 2015.

Tutorial-derived coin contract (Solidity v0.1.1), one of multiple token instances deployed by the same address on Aug 8, 2015.

Tutorial-derived coin contract (Solidity v0.1.1), deployed Aug 9, 2015 during the Frontier era.

Owner-controlled custody contract with Deposit/Transfer/IcapTransfer events.

The canonical ethereum.org 'Dapps for Beginners' subcurrency (token): sendCoin transfers with a CoinTransfer event.

Owner-controlled custody contract with ICAP-style transfer events.

First deployment of Gavin Wood's ExpRegistrar, a name registry where every name has a standing price that doubles on each sale.

The ninth iteration of the GlobalRegistrar contract, which became the canonical Ethereum name registrar hardcoded into Geth and other clients during the Frontie

The first contract on Ethereum mainnet to carry transfer(address,uint256), deployed 19 August 2015. Balances live in a public mapping, and the transfer returns nothing and emits no event.

One of the earliest named tokens on Ethereum, and the first known to feature an animal identity and a public on-chain faucet.

A copy of the coin contract from the Frontier Guide, the two function token that taught a generation of Ethereum developers to move a balance.

The subcurrency example from the Solidity documentation with a payable deposit bolted on.

An early Frontier-era token contract implementing a pre-ERC-20 interface, deployed on September 8, 2015 by an address associated with the ENS name collectibletr

A copy of the coin contract from the Frontier Guide, the two function token that taught a generation of Ethereum developers to move a balance.

A copy of the coin contract from the Frontier Guide, the two function token that taught a generation of Ethereum developers to move a balance.

A copy of the coin contract from the Frontier Guide, the two function token that taught a generation of Ethereum developers to move a balance.

A copy of the coin contract from the Frontier Guide, the two function token that taught a generation of Ethereum developers to move a balance.