Wrapped Bitcoin Tokens (WBTC) is an ERC20 token fully backed by real BTC. The proof of reserves is on-chain, showing the exact 1:1 ratio between minted WBTC tokens and BTC stored by the custodians. A collaborative effort with a community of partners to bring Bitcoin to the Ethereum network will bring the stability and value of Bitcoin to Ethereum's expansive ecosystem of decentralized applications.
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.