Utility Contracts

The Ethereum Alarm Clock entry point, which creates one contract per scheduled call

A single scheduled call, created by the scheduler and waiting for its target block

The Solidity documentation storage example, given a public variable and an initialising constructor

The Solidity documentation storage example, given a public variable and an initialising constructor

Safe remote purchase escrow holding a double deposit from both sides

The multiply contract that opens the go-ethereum Contract Tutorial, deployed with the author's own multiplier of 69 in place of 7.

A greeter with four slots it never uses, and greet renamed myName

An Oraclize price ticker that fetches the ETH/Bitcoin (ETH/XBT) rate from Kraken, deployed at DEVCON1 in November 2015.

The storage example where set calls get and throws the answer away

The Solidity tutorial subcurrency, a minter and a balance mapping

A copy of the greeter contract from the Frontier Guide, used to put a commercial mortgage commitment form onchain in 2015.

A contract with no storage at all that exists only to write three indexed addresses into the log.

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

The greeter with a changeable greeting and a block number reader

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

Comment log for a marketplace listing, deployed by the store it belongs to

A marketplace store record: it holds an owner, a metadata blob and the address of the comment board its listings are discussed on.

The mortal base contract from the Frontier Guide deployed on its own, with nothing inheriting from it.

The ethereum.org democracy tutorial: token holders propose a transaction, vote on it for a fixed period, and the contract sends it if it passes.

The ethereum.org democracy tutorial: token holders propose a transaction, vote on it for a fixed period, and the contract sends it if it passes.

The ethereum.org democracy tutorial: token holders propose a transaction, vote on it for a fixed period, and the contract sends it if it passes.

Token-weighted governance over a share contract, from the ethereum.org tutorial

Token-weighted governance over a share contract, from the ethereum.org tutorial

The owned base contract, with owner renamed author