what's Clementine (Citrea)?
Clementine is a trust-minimized two-way peg program developed by Citrea, a Bitcoin rollup project. It enables secure bridging between Bitcoin's main chain and Citrea's layer-2 network using BitVM2, a programming paradigm that allows complex computations on Bitcoin without altering its consensus rules. The program facilitates the movement of BTC into and out of the rollup while minimizing trust assumptions, relying on cryptographic proofs rather than centralized custodians. At its core, Clementine incorporates light client proofs for both Bitcoin and Citrea to verify state transitions, alongside a zero-knowledge proof (ZKP) verifier to ensure the validity of rollup computations. This setup allows users to deposit BTC via a peg-in mechanism, where funds are locked on Bitcoin and minted as equivalent assets on Citrea for DeFi applications. Withdrawals (peg-out) are challenged and resolved on Bitcoin using BitVM fraud proofs if disputes arise, enhancing security and decentralization. The project addresses key bottlenecks in Bitcoin DeFi by enabling efficient, trust-minimized interactions, with implementations available on GitHub for further development and auditing.
Clementine's rollup and BitVM bridge audits are complete, a major step to mainnet launch.
Mainnet campaign tracks 6 categories: Bridger (net inflow and time in ecosystem), LP Provider (ranges across Satsuma/JuiceSwap), Lender (ctUSD lending activity), Yield Strategist (vault positions), Trader (volume tracking), and Adventurer (activities and transactions on Citrea).
All audits for the rollup and BitVM-based bridge complete, marking a major step toward mainnet launch.
Research competition results announced with three winners receiving total prizes of approximately $64,052 for reviewing the Clementine BitVM-based two-way peg bridge.
Launched mainnet as Bitcoin's first ZK rollup with working infrastructure.
V2 upgrade eliminates collateral and liquidity requirements for Bitcoin bridging, powered by FairGate Labs' Garbled Circuits and TOOP technology.
Whitepaper livestream begins shortly featuring BitVM inventor and Babylon cofounder as key participants.
Whitepaper livestream scheduled for April 23, 11AM PT, featuring BitVM inventor and Babylon cofounder.
First complete BitVM bridge design deploys to testnet with Tangerine upgrade, enabling BitVM activation.
Released technical whitepaper for Bitcoin bridge using cBTC as trust-minimized bridge via Clementine/BitVM technology, focusing on collateral efficiency and trust minimization.