The introduction of BitVM smart contracts has marked a significant milestone in the path for scalability and programmability of Bitcoin. Rooted in the original BitVM protocol, Bitlayer’s Finality Bridge introduces the first version of the protocol live on testnet, which is a good starting point for realizing the promises of the Bitcoin Renaissance or “Season 2”.
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Unlike earlier BTC bridges that often required reliance on centralized entities or questionable trust assumptions, the Finality Bridge leverages a blend of BitVM smart contracts, fraud proofs, and zero-knowledge proofs. This combination not only enhances security but also significantly reduces the need for trust in third parties. We’re not at the trustless level that Lightning provides, but this is a million times better than current sidechains designs claiming to be Bitcoin Layers 2s (in addition to significantly increasing the design space for Bitcoin applications).
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