Coinbase Bridge vs Compound V3

cbBTC is Coinbase’s wrapped Bitcoin launched on Base and Ethereum to simplify DeFi access for exchange users. Custody is handled by Coinbase Prime with a daily on‑chain proof‑of‑reserve attestation signed by Deloitte. cbBTC is fungible 1:1 with native BTC and charges zero conversion fees during promotional periods.

Compound V3—also branded ‘Comet’—moves to a one‑way collateral model where users borrow a single base asset (USDC, ETH or WBTC) against isolated collateral lists. The simpler architecture reduces attack surface, halves gas per transaction and lets governance set per‑asset borrow caps. Launched on Ethereum in August 2022, V3 has since been ported to Arbitrum and Base and underpins products such as Coinbase’s USDC institutional lending pool.