arXiv 2408.018962024-08cs.CR

比特币质押

Bitcoin Staking

Babylon Labs；Common Prefix；a16z Crypto Research；Byzantine Research；Stanford University（斯坦福大学）；ZeroSync；MegaETH

Xinshu Dong, Orfeas Stefanos Thyfronitis Litos, Ertem Nusret Tas, David Tse, Robin Linus Woll, Lei Yang, Mingchao Yu

AI总结：

本文提出比特币质押协议，允许持有者无信任地使用闲置资产安全其他权益证明链，通过双防签名、最终性工具和双向时间戳实现自动罚分，该协议模块化且可集成任何权益证明链，已部署至巴比伦主网并获得超过5.8万比特币质押，仅支付0.05%的年化回报，比原生代币保障的权益证明链安全成本低两个数量级。

摘要：

安全共享的概念可以追溯到Nakamoto引入的合并挖矿技术，该技术使比特币矿工能够重用其哈希算力来启动和安全其他工作量证明（PoW）区块链。然而，随着权益证明（PoS）链的兴起，需要新的比特币安全共享方法。我们介绍了比特币质押，一种允许比特币持有者无信任地使用其闲置资产来安全其他权益证明链的协议。关键挑战是实现当安全证明链出现安全违规时自动对比特币进行罚分。我们通过双防签名、最终性工具和比特币与权益证明链之间的双向时间戳实现这一目标。我们的设计是完全模块化的，可以与任何权益证明链集成。该协议的一个版本于2025年4月部署至巴比伦主网，目前已有超过58,000比特币质押（约40亿美元价值），仅支付0.05%的年化回报给质押者。这比由其原生代币保障的权益证明链的安全成本低两个数量级。

英文摘要：

The idea of security sharing goes back to Nakamoto's introduction of merge mining, a technique that enables Bitcoin miners to reuse their hash power to bootstrap and secure other Proof-of-Work (PoW) blockchains. However, with the rise of Proof-of-Stake (PoS) chains, there is a need for new methods of Bitcoin security sharing. We introduce Bitcoin staking, a protocol that allows Bitcoin holders to trustlessly use their idle asset to secure a PoS chain. The key challenge is to enable automatic slashing of bitcoins on the Bitcoin chain upon safety violations on the PoS chain. We achieve this using double-authentication-preventing signatures, finality gadgets and bi-directional timestamping between Bitcoin and the PoS chain. Our design is entirely modular and can be integrated with any PoS chain. A version of this protocol was deployed to secure the Babylon mainnet in April 2025 and currently has over 58,000 bitcoins staked (about 4 billion USD at current prices) while paying only 0.05% APR reward to the stakers. This is 2 orders of magnitude cheaper security cost than in PoS chains secured by their native token.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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摘要：

英文摘要：

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