Bitcoin DeFi protocol Bitflow Labs announced the completion of a $1.3 million Pre-Seed round of financing, led by Portal Ventures, with participation from Bitcoin Frontier Fund, Bitcoin Startup Lab, Big Brain Holdings, Newman Capital, Genblock Capital, Tykhe Block Ventures, and others. It is reported that Bitflow, with strategic wallet partners such as Hiro (Leather), Xverse, and Asigna, and using technologies such as PSBT, atomic swaps, AMM, and second-layer solutions such as Stacks, provides efficient decentralized exchanges and sustainable BTC yields.