Alpen Labs, a Bitcoin infrastructure company, has secured $8.5 million in strategic financing led by DBA and Cyber Fund. Key investors from its seed round, including Ribbit Capital, Castle Island Ventures, and Geometry, have continued their support. The funds will accelerate the development of Bitcoin ZK Rollup 'Strata,' set for mainnet release in 2025. Strata aims to enhance Bitcoin's functionality with features like self-custody, privacy-focused payments, and Bitcoin-backed lending. A test network will be available next month. Previously, Alpen Labs raised $10.6 million in April, led by Ribbit Capital.