Abstract

Blockchains are distributed data structures that are used to achieve consensus in systems for cryptocurrencies (like Bitcoin) or smart contracts (like Ethereum). Although blockchains gained a lot of popularity recently, there are only few logic-based models for blockchains available. We introduce $\mathsf{BCL}$, a dynamic logic to reason about blockchain updates, and show that $\mathsf{BCL}$ is sound and complete with respect to a simple blockchain model.

中文翻译：

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区块链更新的逻辑

区块链是分布式数据结构，用于在加密货币（如比特币）或智能合约（如以太坊）的系统中达成共识。尽管近来区块链获得了很大的普及，但是只有很少的基于逻辑的区块链模型可用。我们介绍| $ \ mathsf {BCL} $ |⁠，这是推理区块链更新的动态逻辑，并显示| $ \ mathsf {BCL} $ |。就简单的区块链模型而言，它是健全且完整的