cbBTC is a token issued by Coinbase on the Solana blockchain, backed 1:1 by Bitcoin held in Coinbase's custody.This allows users to access Bitcoin's value on the Solana network, benefiting from its speed and low costs.cbBTC can be used in Solana's ecosystem for tasks such as lending, borrowing, and trading tokens.Users can acquire cbBTC through Jupiter.ag or the Jupiter Mobile app, with the option of purchasing it directly through a special tweet link.