The article discusses the challenges of data access across multiple open and permissionless blockchains, noting that interoperability cannot be taken for granted. It proposes developing a cross-chain query language that abstracts the implementation complexities with a standardized syntax and integrated data model. This would enable a unified approach to querying data across different blockchains, addressing current issues of inhomogeneous data access and varying feature sets. The research expands on prior work, detailing the architecture of this query language and evaluating its compatibility with existing blockchain systems.
The research proposes a cross-chain query language to facilitate seamless data access and interoperability among various blockchains, mitigating the current challenges of inhomogeneous data access.
Interoperability issues arise from different blockchain architectures and application programming interfaces (APIs), necessitating a standardized approach to improve data accessibility and coherence.
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