Mercury is a new Bitcoin layer-2 scaling technology, based on the concept of statechains, that enables private keys for BTC deposits (UTXOs) to be transfered securely between owners without requiring an on-chain transaction.
This enables users to transfer full custody of an amount of BTC to anyone almost instantly, with increased privacy, and without having to pay miner fees.
https://mercurywallet.com/
https://github.com/layer2tech/mercury-wallet
https://twitter.com/mercury_wallet
Onion address: mercury32vj43p4ychitp5qgqbcwmz36alalpd76nma3zbcedjmgyoqd.onion