Orbitcoin is a PoW/PoS coin that is the first coin to implement 0% PoS staking. Orbitcoin's goal is to be used on the normal Internet and darknets like I2P/Tor. At the moment, Orbitcoin works with SOCKS over I2P/Tor. Native support for I2P will be in place soon. Orbitcoin is one of the oldest PoW/PoS altcoins that was launched on the 30th of July 2013. Orbitcoin is founded by Ghostlander, a male located somewhere in Europe.
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.