论文标题
倾向于开放和无许可区块链的互操作性：跨链查询语言
Towards Interoperability of Open and Permissionless Blockchains: A Cross-Chain Query Language
论文作者
论文摘要
开放和无许可的区块链的兴起已经基于分布式数据存储引入了用于应用程序的新型平台。在应用程序和业务层面上，诸如SQL之类的悠久查询语言提供了互操作性，如今可以通过基于区块链的数据存储来补充，从而使无许可和可验证的数据存储以及跨数成千上万个节点的分散执行。但是，当访问一个或多个区块链时，今天没有提供互操作性，除了不同的功能和权衡取舍之外，还提出了诸如不均匀数据访问之类的挑战。在数据和分配，可扩展性和安全性中。本文引入了跨区块链的数据访问的跨链查询语言，供越来越多的区块链平台之间的数据访问互操作性。与SQL类似，基于与当今最大的开放和无许可区块链（OPB）兼容的数据模型的语言摘要。通过实施的原型来展示和评估语言，数据模型和处理体系结构，旨在为OPB之间的区块链互操作性的讨论做出贡献。
The rise of open and permissionless blockchains has introduced novel platforms for applications based on distributed data storage. At the application and business levels, long-established query languages such as SQL provide interoperability that can be complemented by blockchain-based data storage today, enabling permissionless and verifiable data storage along with decentralized execution across tens of thousands of nodes. However, when accessing one or more blockchains, interoperability is not provided today, posing challenges such as inhomogeneous data access in addition to different features and trade-offs, e.g. in data and distribution, scalability, and security. Towards interoperability in data access among the increasing number of blockchain platforms, this paper introduces a cross-chain query language for data access across blockchains. Similar to SQL, the language abstracts from implementation based on a data model compatible with the largest open and permissionless blockchains (OPB) today. The language, data model, and processing architecture are demonstrated and evaluated with an implemented prototype, aiming to contribute to the discussion on blockchain interoperability among OPB.
