content-change clock
A per-page record of when the main content last really changed, measured by hashing the article text with navigation, dates and rotating parts removed, and bounded between two readings. It is compared with the date the page declares.
What content-change clock does not show
It tells an agent whether a quote is still current; it cannot place a change more precisely than the readings around it.
Terms this definition uses
Related terms in Measurement and evidence
The vocabulary for saying how strongly something is known.
read equivalence · self-claim ledger · agent task canary · revocation delta · signed verdict · hash-prefix lookup · k-anonymity · publication floor · data snapshot · evidence level · false positive · denominator note · percentile rank · population baseline · cohort asymmetry · self-audit invariant · unscored measurement · dated series · change receipt · regression · finding age · graded through a wall · self-audit · placeholder in record · fetcher disagreement · own-host loop · score version · row review · double-counted defect · cosmetic row · gated row · log file analysis · AI referral attribution · finding fingerprint · finding state · headroom · fix list · render gap · lab data · Lighthouse · RUM · LCP · CLS · INP · topicality · intent coverage · canary · citation rate · presence rate · answer stability
Questions about content-change clock
What is content-change clock?
A per-page record of when the main content last really changed, measured by hashing the article text with navigation, dates and rotating parts removed, and bounded between two readings. It is compared with the date the page declares.
What does content-change clock not show or guarantee?
It tells an agent whether a quote is still current; it cannot place a change more precisely than the readings around it.
Which area of the glossary does content-change clock belong to?
Measurement and evidence: The vocabulary for saying how strongly something is known.
← read equivalence · self-claim ledger →
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