21.co, the parent company of cryptocurrency ETP provider 21Shares, has announced the integration of Chainlink (LINK) Proof of Reserve for their wrapped Bitcoin (21BTC) product. 21BTC is an ERC-20 token pegged to Bitcoin launched on the Ethereum blockchain by 21.co. Proof of Reserve mechanisms are designed to provide on-chain verification of reserves, increasing transparency and reducing the risk of fraud or asset misappropriation. By implementing Chainlink Proof of Reserve, 21.co aims to enhance the transparency and security of its 21BTC product. The integration will allow 21.co to provide real-time, verifiable evidence of the Bitcoin reserves backing the 21BTC tokens in circulation. The integration is part of 21.co's ongoing commitment to providing secure and transparent products to its clients. 21.co believes that the integration of Chainlink Proof of Reserve will further strengthen the trust and confidence in the 21BTC product and the broader cryptocurrency market.