**tbdxxx Launched as Ark - Privacy Preserving Layer 2 Bitcoin Scaling Solution**
"Ark is a liquidity network that operates like Lightning, but without introducing liquidity constraints. It uses virtual utxos, to enable anonymous, scalable, off-chain payments. ASPs provide liquidity to the network and charge fees for their services."
https://www.nobsbitcoin.com/tbdxxx-ark-layer-2-scaling-solution/