Mastercoin / Omni is a digital currency built on top of the Bitcoin blockchain. Its features include the development of a decentralised exchange and the implementation of smart property and savings wallet. The Master Protocol facilitates the creation and trading of smart properties and user currencies as well as other types of smart contracts. Mastercoin enables the Bitcoin eco-system to become more decentralized. The Mastercoin project was launched on 31 July 2013 with a one-month long fundraiser. Those interested in obtaining Mastercoin may send bitcoin to an 'Exodus Address' where the funds collected would be used to fund the development of Mastercoin. Around 500 people invested in Mastercoin sending roughly 5000 bitcoins to the Mastercoin project.
'Carry Protocol is a blockchain project that compensates consumers for sharing their data and receiving ads. Carry compensates individual consumers for 1. sharing their offline purchase data to build the most comprehensive offline purchase database, and 2. receiving ads from advertisers that use the Carry database to send targeted ads. Carry empowers consumers by giving them back the full control of their data and its monetization, and enables businesses to send targeted ads to the right consumers using the shared data. '