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File checksum
Digest calculated from a file to identify the exact version processed. A matching checksum does not establish data accuracy.
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Metadata quality
Extent to which producer, licence, resources and coverage are documented. It does not directly measure record accuracy.
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Hero image
The visual representing a page topic in its HTML content. It should agree with the title and context.
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Responsive image variant
An image version suited to screen width or density. It avoids unnecessary transfer while preserving a fallback source.
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Image caption
Visible text placing an image in context, such as subject, date or source, without overclaiming.
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EXIF metadata
Information embedded in some image files, such as description, creator or rights. It guarantees no search ranking.
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Image rights metadata
Information about image owner, licence or rights-acquisition page; always check the original licence.
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@id identifier
Stable URI joining nodes in a JSON-LD graph. Person, article and page should retain separate identities.
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Rich result eligibility
A page meeting supported types, properties and provider rules. Eligibility does not guarantee rich result display.
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Denominator
Reference population or quantity used to calculate a rate. A different denominator may make figures incomparable.
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Modelled estimate
Value produced statistically when direct observations are incomplete. Retain model, assumptions and uncertainty range.
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Editorial revision
Verified update to content, sources, dates, links and language variants; distinguish a minor correction from a substantive change.
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ORCID
Persistent identifier connecting a person with a record of contributions and affiliations. Check who supplied each entry and when; the profile does not prove current employment.
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ROR
Persistent Research Organization Registry identifier distinguishing research organisations despite name variations. It does not independently validate an author’s affiliation.
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PMID
Identifier of a bibliographic reference in PubMed. The record and abstract do not replace the full text; a PMID differs from a DOI and PMCID.
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PMCID
Identifier of a document in PubMed Central. Check its version, updates and reuse rights: free access does not remove copyright.
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Preprint
Version made public before peer review. Identify its repository, date and version, then look for any later publication without treating the two texts as identical.
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Memento
In the RFC 7089 framework, a resource representing a prior state of another resource.
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TimeMap
List of Memento addresses for a resource. Distinguish listed states from readable ones.
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WARC
Format grouping resource records and metadata. Preserving a file does not resolve its interpretation.
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Archive replay
Consulting an archival resource through an interface. Record useful components and destinations actually read.
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Idempotence
Property whereby repeating an operation has the same intended effect as executing it once. It does not guarantee an identical response or safety of every retry.
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Control case
Case with a known expected result used to compare observed behaviour. Describe the control and conditions; it does not replace real cases.
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Operational AI governance
AI governance, usage policies, risk, evaluation and human control by Alexis Roux ZG.