Token Contracts

An ethereum.org tutorial token deployed with no name and no symbol, that tracks spending against approvals rather than decrementing them.

Alex Van de Sande's post-DAO-fork ETH/ETC replay-protection splitter. Routes ether or ERC20 tokens to different recipients depending on which chain it runs on.

ERC20-style 'I owe you a beer' IOU ledger by Nick Johnson (ENS). Each transfer creates a personal beer debt; obligations are tracked and transferable.

DAO-era ERC-20-shaped token, May 2016. Symbol is the Greek capital letter Xi. Fixed cap 15,000; 1 token per 0.001 ETH via buy().

Mintable reserve asset whose creator alone can add or remove units from any balance.

A fixed-supply token with transfers and allowance spending, deployed August 2016.

A token with transfers and allowance spending, and an owner who can mint new units, deployed August 2016.

A fixed-supply token with transfers and third-party allowances, deployed August 2016.

2017 ERC-20 token tied to HashDB, an early Ethereum-backed data store; mintable via buy() with refund-on-overpay and frontend-bypass transferFrom.

An Ethereum smart contract that enables on-chain publishing and token-gated upvoting of posts.

A fixed-supply token with transfers and third-party allowances, deployed August 2016.

Token with an owner who sets buy and sell prices and can freeze any holder.

GreyPower (P-), one of two tokens minted by an oracle-fed energy metering system, the other being GreenPower (P+).

A 2016 ConsenSys MyAdvancedToken (Japanese 「金」, "gold"), 100 supply, sold via buy() at 1000 wei/token.

Certificate token for renewable generation, owner priced and freezable.

An infinite-supply ERC-20-compatible token where every transfer mints a hug. Deployed August 23, 2016 by Jon Romero as a social experiment and Ethereum tutorial

Renewable generation certificate, a later revision of the same accounting system.

A token with transfers and third-party allowances, and an owner who can mint new units, deployed August 2016.

A fixed-supply token with transfers and third-party allowances, deployed August 2016.

A fixed-supply token with transfers and allowance spending, deployed September 2016.

A fixed-supply token with transfers and third-party allowances, deployed September 2016.

A fixed-supply token with transfers and third-party allowances, deployed September 2016.

A token with transfers and third-party allowances, and an owner who can mint new units, deployed September 2016.

An ethereum.org tutorial token deployed with no name and no symbol, with a fixed supply, allowances and approveAndCall.