Crowdsale / ICO Contracts

The original MyScheme pyramid contract with a 1 ETH entry fee, deployed on August 7, 2015.

The ETH crowdsale contract for Augur REP token sale, August 2015. Contributors called buyRep() to fund Ethereum's first major dApp.

The July 2015 ethereum.org crowdsale tutorial, with a fallback that reverts on every contribution.

A later revision of the ethereum.org crowdsale tutorial, set to raise 100 ether in 30 minutes with no reward token.

The ethereum.org crowdsale tutorial pointed at a reward token address that has no code.

The DigixDAO crowdsale contract — the first major DAO token sale on Ethereum, raising $5.5M in under 24 hours in March 2016.

SingularDTV crowdfunding contract — managed the October 2016 token sale for the Ethereum-based decentralized entertainment platform, raising $7.5M in 17 minutes

A crowdfunding variant with a resumable, gas-guarded refund loop that persists its progress, so a large refund can complete across multiple transactions.

A crowdfunding contract with a 0.06 ether goal and a 500 second window, deployed 30 October 2016.

A crowdfunding contract with a 0.06 ether goal and a 400 second window, deployed 30 October 2016.

A crowdfunding contract with a 0.06 ether goal and a 500 second window, deployed 30 October 2016.

A crowdfunding contract with a 0.06 ether goal and a 500 second window, deployed 30 October 2016.

A crowdfunding contract with a 0.06 ether goal and a 500 second window, deployed 30 October 2016.