Open University

Anchor a Query using Comunica and Linkchain

Connect to MetaMask (Select a testnet)

Note: Requires a configured Metamask wallet - see here

Anchor a Query

(JSON-LD object containing query, sources, results and query plans)

(Metadata for whole-document blockchain verification)

(Metadata for per-quad/triple blockchain verification)

(in local storage)

Stored Data      

Date Sources Query Query Result SPARQL Trace Data Anchored Metadata Granular Anchored Metadata

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