Citrea xyz is the first zk-rollup on Bitcoin that uses zero-knowledge proofs to batch transactions and publish validity directly on-chain, making Bitcoin both the settlement and data availability layer. Citrea Bitcoin rollup is fully EVM-compatible, allowing developers to seamlessly build applications on Bitcoin without altering its consensus.
The project has raised $16.7M in 2 funding rounds with participation from Galaxy Digital (Ventures), Delphi Digital, and others.
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Citrea BTC project extends Bitcoin’s utility by introducing a zk-rollup that secures execution and data availability directly on the Bitcoin blockchain. Its proof system guarantees every state transition is valid, accessible, and immutable, making it the first true execution layer rooted in Bitcoin.
On July 17th, 2025, the project announced the launch of its Testnet campaign, allowing users to “unfreeze Bapps” ahead of the mainnet launch. Hence, we have prepared a detailed guide on how to join the event and qualify for the potential Citrea airdrop.
<a href="https://coinlaunch.space/projects/citrea/" title="Citrea (CTR)" target="_blank"><img src="https://coinlaunch.space/media/widgets/0/citrea.png" width="224" alt="Citrea (CTR)"></a>