The key to Space Chain is to deploy all blockchain nodes on satellites so as to bring blockchain technology into space, adding a new dimension to blockchain’s core concept of distributed ledger by making use of space technology and advantages of space resources. As a space blockchain platform featuring data collecting, computing, application and storage, Space Chain uses satellites as its blockchain nodes for realizing direct on-satellite data processing and secure in-space data storage through cryptographic technologies such as quantum communications. Different from ground-network-based blockchain technology, Space chain provides a broader coverage and is based on a network of LEO satellites for achieving broad-based connectivity so that anyone and anything could become the user of blockchain technology anywhere and anytime.
Metronome, found online at Metronome.io, under the symbol MTN. The cryptocurrency promises to deliver “institutional-class endurance” with cross-blockchain compatibility.The currency is being developed by Bloq, which announced Metronome in October 2017. Metronome is launched in early December 2017, with the first cross-chain transfers (between Ethereum and Ethereum Classic) scheduled for Q1 2018. Metronome released in December 2017. By Q1 2018, Metronome aims to become the world’s first cross-chain compatible cryptocurrency by adding Ethereum Classic support (the currency is initially built on Ethereum). Metronome’s cross-chain compatibility system involves creating exit receipts when leaving the chain and entering a new chain.