Towards Interoperability of Open and Permissionless Blockchains: A Cross-Chain Query Language
Felix H\"arer

TL;DR
This paper introduces a cross-chain query language inspired by SQL to enable interoperable data access across multiple open and permissionless blockchains, addressing current fragmentation issues.
Contribution
It presents a novel cross-chain query language, data model, and architecture, with a prototype demonstrating its feasibility for blockchain interoperability.
Findings
Prototype implementation validates cross-chain data access
Language abstracts blockchain differences for seamless querying
Contributes to blockchain interoperability discussions
Abstract
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…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsBlockchain Technology Applications and Security · Cloud Computing and Resource Management · Peer-to-Peer Network Technologies
