【Author】
Mohanty, Debasis; Anand, Divya; Aljahdali, Hani Moaiteq; Villar, Santos Gracia
【Abstract】The highly fragmented blockchain and cryptocurrency ecosystem necessitates interoperability mechanisms as a requirement for blockchain-technology acceptance. The immediate implication of interchain interoperability is automatic swapping between cryptocurrencies. We performed a systematic review of the existing literature on Blockchain interoperability and atomic cross-chain transactions. We investigated different blockchain interoperability approaches, including industrial solutions, categorized them and identified the key mechanisms used, and list several example projects for each category. We focused on the atomic transactions between blockchain, a process also known as atomic swap. Furthermore, we studied recent implementations along with architectural approaches for atomic swap and deduced research issues and challenges in cross-chain interoperability and atomic swap. Atomic swap can instantly transfer tokens and significantly reduce the associated costs without using any centralized authority, and thus facilitates the development of a sustainable payment system for wider financial inclusion.
【Keywords】blockchain; interoperability; atomic; swap; P2P; cryptocurrency; exchange
【摘要】高度分散的区块链和加密货币生态系统需要互操作性机制作为区块链技术接受的要求。链间互操作性的直接含义是加密货币之间的自动交换。我们对现有的关于区块链互操作性和原子跨链交易的文献进行了系统回顾。我们调查了不同的区块链互操作性方法，包括工业解决方案，对它们进行了分类并确定了使用的关键机制，并为每个类别列出了几个示例项目。我们专注于区块链之间的原子交易，这一过程也称为原子交换。此外，我们研究了原子交换最近的实现以及架构方法，并推断了跨链互操作性和原子交换的研究问题和挑战。原子交换可以在不使用任何中心化权限的情况下即时转移代币并显着降低相关成本，从而促进可持续支付系统的发展，以实现更广泛的金融包容性。
【关键词】区块链；互操作性；原子；交换；点对点；加密货币；交换
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