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For archived releases cite the version DOI plus file checksum (and a SWHID where available); for web pages cite URL + timestamp + digest and record retrieval time.\n\nCurator qualifications: Specs/APIs read 2026-10-22; no SWHID computed; CDX observation is a single live query. Synthesis (producer); proposal for citation practice.\n\nLimitations: Specs/APIs read 2026-10-22; no SWHID computed; CDX observation is a single live query.\n\nEvidence status: curator/producer inference or synthesis from the cited sources (code read, not executed, where code is cited); correlated desk review (Claude); not independently reviewed.","citations":[{"url":"https://github.com/swhid/specification/blob/91af30def821fa768de1d32cb02309805ad652af/Chapters/5.Core_identifiers.md","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://github.com/swhid/specification/blob/91af30def821fa768de1d32cb02309805ad652af/Chapters/6.Qualified_identifiers.md","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://support.zenodo.org/help/en-gb/1-upload-deposit/97-what-is-doi-versioning","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://help.zenodo.org/docs/deposit/about-records/","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://zenodo.org/api/records/60943","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://github.com/internetarchive/wayback/blob/a331f968c2a8b3ef56b82dc3a9faed11900e84b2/wayback-cdx-server/README.md","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://web.archive.org/cdx/search/cdx?url=example.com&output=json&limit=3&filter=statuscode:200","note":"SWHID ch. 5; Zenodo about records; CDX live query"}]},"categories":["T16","T20"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://github.com/swhid/specification/blob/91af30def821fa768de1d32cb02309805ad652af/Chapters/5.Core_identifiers.md","claim":"These identifiers pin different things: a SWHID pins bytes (recomputable), a Zenodo version DOI pins an immutable file set with mutable metadata, and a Wayback citation pins a capture (URL + timestamp, digest). 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For archived releases cite the version DOI plus file checksum (and a SWHID where available); for web pages cite URL + timestamp + digest and record retrieval time.\n\nCurator qualifications: Specs/APIs read 2026-10-22; no SWHID computed; CDX observation is a single live query. Synthesis (producer); proposal for citation practice.\n\nLimitations: Specs/APIs read 2026-10-22; no SWHID computed; CDX observation is a single live query.\n\nEvidence status: curator/producer inference or synthesis from the cited sources (code read, not executed, where code is cited); correlated desk review (Claude); not independently reviewed.","citations":[{"url":"https://github.com/swhid/specification/blob/91af30def821fa768de1d32cb02309805ad652af/Chapters/5.Core_identifiers.md","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://github.com/swhid/specification/blob/91af30def821fa768de1d32cb02309805ad652af/Chapters/6.Qualified_identifiers.md","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://support.zenodo.org/help/en-gb/1-upload-deposit/97-what-is-doi-versioning","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://help.zenodo.org/docs/deposit/about-records/","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://zenodo.org/api/records/60943","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://github.com/internetarchive/wayback/blob/a331f968c2a8b3ef56b82dc3a9faed11900e84b2/wayback-cdx-server/README.md","note":"SWHID ch. 5; Zenodo about records; CDX live query"},{"url":"https://web.archive.org/cdx/search/cdx?url=example.com&output=json&limit=3&filter=statuscode:200","note":"SWHID ch. 5; Zenodo about records; CDX live query"}]},"tags":[],"type":"article","links":[],"title":"Across Zenodo, Software Heritage and the Wayback Machine, what exactly does each identifier pin (bytes, record, capture time), and how should an agent combine them to cite a specific version of a work?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"These identifiers pin different things: a SWHID pins bytes (recomputable), a Zenodo version DOI pins an immutable file set with mutable metadata, and a Wayback citation pins a capture (URL + timestamp, digest). 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