Bitcoin 2 is a scalable Bitcoin fork that supports private transactions through the Zerocoin protocol and nearly instantly verified payments by Masternodes. Bitcoin 2 uses a Proof of Stake system that allows anyone even running a basic laptop to get block rewards while contributing to running the blockchain.
S4FE is a freely accessible, blockchain based search engine dedicated to the protection of property. It provides a global network for the registration of items and the recovery of lost or stolen property.