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UTXO Stack is a modular BTC Layer2 launch platform built on Nervos CKB, designed to help developers quickly build Bitcoin Layer2 networks based on the UTXO architecture. It natively integrates the RGB++ protocol, enabling trustless asset interoperability between BTC and CKB without bridges, and supports staking BTC, CKB, and BTC L1 assets to secure Layer2. Developers can use its componentized framework to focus on business logic, without building underlying consensus and state verification from scratch.
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About UTXO Stack
UTXO Stack is a modular BTC Layer2 platform developed by Cell Studio, designed to simplify the deployment of Bitcoin Layer2 networks. Its core business revolves around the RGB++ protocol and the Fiber Network, a Lightning Network-compatible solution. The platform enables developers to launch their own BTC Layer2 chains with one-click tooling, while leveraging CKB's Turing-complete architecture to support cross-chain asset transfers without traditional bridges.
Its main value proposition lies in unifying Bitcoin's liquidity with programmable Layer2 capabilities. By using RGB++'s isomorphic binding, assets on BTC can be mapped to CKB and other UTXO-based chains, avoiding the security risks of centralized bridges. The Fiber Network extends this to payment channels, aiming to bring fast, low-cost transactions to Bitcoin while maintaining self-custody.
The market pain point UTXO Stack addresses is the fragmentation and inefficiency in the current BTC Layer2 ecosystem. Many existing solutions rely on trusted bridges or multi-party computation, which introduce security assumptions and user friction. UTXO Stack's approach reduces these barriers by enabling native cross-chain interactions and programmability, making it easier for developers to build DeFi, payment, and other applications on Bitcoin.
In the past six months (2026-02-28 to 2026-08-31), UTXO Stack has focused on the rollout of its Fiber Network mainnet and the expansion of its DLSP (Decentralized Liquidity Staking Protocol) to improve liquidity for payment channels. The team has also been integrating stablecoin support into the network, allowing users to transact in assets like USDI alongside BTC. However, the broader adoption of Lightning-based solutions remains a challenge, as user education and infrastructure maturity are still evolving. The competitive landscape for BTC Layer2 platforms is intense, and the actual usage of these networks has yet to reach mass-market levels.
UTXO Stack, a modular BTC Layer2 platform, has achieved two pivotal milestones. First, it released its whitepaper, 2025 roadmap, and new website, formally establishing its technical framework for one-click chain issuance and modular architecture. This marks the transition from concept to a structured development plan. Second, the platform announced its strategic transformation into a Lightning Network staking layer, introducing a token incentive mechanism. This shift is significant as it moves beyond infrastructure to actively enhance liquidity and user participation, positioning UTXO Stack as a key enabler for scalable Bitcoin payments. These events represent long-term strategic pivots, not routine updates, setting the stage for broader ecosystem adoption.
Cipher Wang is the founder of UTXO Stack, founder of JoyID, co-founder of Nervos Network, and author of the RGB++ protocol. He previously served as Product Director at the Blockchain Technology Research Institute of China Banknote. He holds a master's degree in theoretical physics from Tsinghua University and a bachelor's degree in automation from Zhejiang University.