Axiom

Citrea is a Bitcoin’s ZK rollup and an execution layer that settles on Bitcoin. Every transaction occurring on Citrea is fully secured by zero-knowledge proofs and verified by Bitcoin through BitVM.

Ark is a Bitcoin Layer 2 payments network, aiming to deliver a more simplified user experience while retaining self-custody. Unlike the Lightning Network, users don’t need to manage payment channels or inbound/outbound liquidity to make payments. Users also don’t need to set up their own nodes, only requiring a light wallet on a smartphone to start sending and receiving self-custodial Ark payments, according to the team.

Alpen is a scaling Bitcoin with Zero Knowledge technology solution. The platform build infrastructure to enable the broader, adoption of Bitcoin. Ushering a new era of trustless, verifiable computation.