Crypto platform 21.co has integrated Chainlink Proof of Reserve on Solana and Ethereum mainnets to enhance transparency for its Wrapped Bitcoin (21BTC). This integration allows for real-time reserve verification and secure minting of 21BTC, a token backed 1:1 by Bitcoin reserves held in cold storage and institutional custody. The integration offers benefits such as programmatic utility, increased confidence in secure minting, decentralization, and transparency for users to independently verify asset collateralization in real time.



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