$BTC $ADA

An important milestone has been achieved in interoperability between Cardano and Bitcoin. On May 4, 2025, **BitcoinOS** announced the first transfer of 1 BTC between the main networks of Bitcoin and Cardano without the need for bridges or intermediaries, using the **BitSNARK** protocol and the **xBTC** token standard. This advancement eliminates the reliance on custodians or traditional bridges, which are often vulnerable points in transactions between blockchains, and employs zero-knowledge cryptography to ensure security and verifiability.

The process involved the transfer of 1 xBTC from a Bitcoin wallet to a Cardano wallet managed by **Sundial Protocol**, and then back to Bitcoin, where it was converted back to standard BTC, all without the intervention of third parties. This marks a significant step towards safer and more efficient interoperability, boosting the use of BTC in Cardano's DeFi applications without risks associated with centralized bridges.

The "merger" of ADA and BTC does not imply a literal combination of the coins, but a technical integration that allows assets to be moved between both networks natively and in a decentralized manner. This development has generated excitement in the community, as reflected in posts on X, and could drive the adoption of Cardano in the DeFi ecosystem by leveraging Bitcoin's liquidity.