BlockSpaces is a Bitcoin-native financial and collateral risk management platform, dedicated to meeting the unique requirements of Bitcoin treasuries, companies, lenders, OTC desks, and other Bitcoin-focused enterprises through its products, ARC and Fusion.
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.