“I thought it could scale on the base layer so I joined the big blocker camp – the Bitcoin Cash camp – and I hung out there for a few years,” Keceli said. “I wanted to build the AMM on Bitcoin Cash first.”Liquid
He began working on a Lightning wallet about six months ago to address these issues, he says, and what began as an attempt to create a best-in-class Lightning wallet, morphed into a standalone protocol now known as Ark. Lightning off-chain channel payments are like a game of ping-pong; coins change hands within a 2-of-2 multisig indefinitely until the channel is closed. A 2-of-2 multisignature or “multisig” transaction requires two parties to sign for the transaction to be valid.unspent transaction output model
That final push by the ASP is actually an on-chain CoinJoin – a way of combining several bitcoin payments from multiple spenders to produce a single transaction whose history and ownership are obfuscated. Keceli says CoinJoin gives Ark a privacy edge over Lightning.