Circle's cirBTC Targets 4 Wrapped Bitcoin Rivals With Chainlink Reserve Proof

Circle has launched cirBTC, a wrapped Bitcoin asset on Ethereum designed to compete with WBTC and cbBTC. The token is backed 1:1 by Bitcoin held in segregated custody and uses Chainlink Proof of Reserve, allowing independent on-chain verification of reserves. The issuer is Circle’s Bermuda-regulated entity, which may appeal to institutional DeFi users seeking clearer legal and compliance structures. The article frames cirBTC as a bid to win liquidity and integrations in lending protocols, DEXs, and custody platforms, but notes that liquidity remains the key hurdle. Market impact is primarily competitive rather than price-driven: the launch could strengthen the wrapped Bitcoin ecosystem and increase institutional demand for transparent BTC exposure, but near-term adoption will determine whether it becomes a meaningful rival to established incumbents.