Bitcoin Capital Markets
Citrea is the Bitcoin application layer, enabling institutions and users to access Bitcoin capital markets.
3 Pillars of Citrea
Citrea exists to close the gap between growing demand for Bitcoin and the network’s lack of native support for Bitcoin applications.
Citrea & Bapps
First ZK rollup on Bitcoin
Citrea is the first fully programmable platform that is secured by Bitcoin. With zero-knowledge technology, Citrea enables Bitcoin applications (₿apps) that bring liquidity, demand and utility to the Bitcoin Network.
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cBTC
Clementine Bridge
Citrea is optimistically verified by the Bitcoin Network thanks to its BitVM-based bridge, Clementine. Citrea BTC (cBTC) is the first trust-minimized Bitcoin on a fully programmable platform.
Clementine Whitepaper
ctUSD
1:1 Fiat-Backed Stablecoin for Bitcoin
ctUSD is the native stablecoin for Bitcoin. It serves as the foundational liquidity layer for Bitcoin applications. ctUSD is designed to align with the forthcoming GENIUS Act guidelines and fully backed by short-term U.S. Treasury bills and cash.
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Bitcoin-native Applications: ₿apps
A ₿app is a non-custodial application that uses BTC or BTC-denominated assets and is secured by the Bitcoin Network.
Citrea Origins:Bitcoin Incubation Program
Citrea Origins program helps you launch your project on Citrea with support from our ecosystem and GTM team. Get access to grants, technical resources, and community support to build applications on Bitcoin.
Backed by Industry Leaders
Supported by the most respected names in crypto
Erik Voorhees
Balaji Srinivasan
Eric Wall
Jameson Lopp
Latest Updates
May 4, 2026
Introducing CTR - The Coordination Asset for the Bitcoin Economy
Today, we introduce CTR, the coordination asset handing control of the Bitcoin economy back to its users. Bitcoin gave us something no financial system ever had: a trustless peer-to-peer electronic cash system. As Bitcoin established itself as the asset for censorship-resistant finance, the need for BTC in various financial use cases has become more prominent. Many attempts have been made to build an ecosystem for Bitcoin, but they were either forced to sacrifice programmability or rely on hea
April 3, 2026
Post-Quantum Citrea
Recent research [1] [2] has reignited the looming potential of quantum attacks on the very foundation of modern cryptography: the elliptic curves. As a layer secured by Bitcoin, Citrea shares the concern of the broader Bitcoin community that quantum computers could eventually break the elliptic curve cryptography Bitcoin relies on. However, our preliminary analysis shows that Citrea is well-positioned to adapt to a post-quantum Bitcoin environment. Making Citrea Post-Quantum Across Three Stac
March 2, 2026
Citrea Introduces the Citrea Foundation to Accelerate Bitcoin’s Programmable Future
Today, we introduce the Citrea Foundation, an independent organization dedicated to supporting the growth and decentralization of Bitcoin’s programmable future. This marks a significant milestone for Citrea, bringing us closer to executing our vision of building the future of how the world interacts with Bitcoin. The core mission of the Citrea Foundation is to empower the open-source community and builders to lower the barriers to Bitcoin adoption. In doing so, the Foundation ensures that proto