Ark Labs launches Arkade public beta, introducing a new native Layer 2 built directly on Bitcoin

Ark Labs, backed by investors like Draper Associates, has launched Arkade in public beta, representing the first mainnet implementation of the Ark Protocol specification, designed as Bitcoin's most advanced native Layer 2 since the Lightning Network.

Arkade virtualizes Bitcoin's transaction layer using Virtual Transaction Outputs (VTXOs), which are offchain representations of UTXOs, without altering Bitcoin's consensus rules. This allows for instant asset movement, lending, and trading while maintaining Bitcoin's security and the user's ability to unilaterally exit onchain. Ark Service Providers (ASPs) coordinate offchain transactions by batching them into periodic onchain settlements, but they never take custody of funds, as every VTXO is backed by a presigned Bitcoin transaction.

Unlike many other 'Layer 2' solutions that rely on sidechains or wrapped BTC, Arkade remains native to Bitcoin's security model, extending capabilities beyond simple payments to broader financial applications. Furthermore, Arkade introduces Arkade Assets to support multi-asset functionality, aiming to bring stablecoins back to Bitcoin infrastructure. Arkade is designed to be interoperable with the Lightning Network, complementing it rather than replacing it.

(Source：The Block)