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Glossary · Measurement and evidence

data snapshot

A complete, dated copy of a dataset published as files with a signed manifest, so anyone can mirror it, verify it and build on it without calling the source again. A daily snapshot of every resolve answer lets a consumer work offline and detect later changes.

What data snapshot means

A complete, dated copy of a dataset published as files with a signed manifest, so anyone can mirror it, verify it and build on it without calling the source again. A daily snapshot of every resolve answer lets a consumer work offline and detect later changes. It can make a dataset independent of its publisher's uptime; it cannot be fresher than the day it was cut, which is why the live answer carries a freshness window and the snapshot carries its date.

What data snapshot can and cannot support

It can supportIt cannot support
A daily snapshot of every resolve answer lets a consumer work offline and detect later changes.A complete, dated copy of a dataset published as files with a signed manifest, so anyone can mirror it, verify it and build on it without calling the source again. It can make a dataset independent of its publisher's uptime; it cannot be fresher than the day it was cut, which is why the live answer carries a freshness window and the snapshot carries its date.

Terms this definition uses

resolve answer · freshness window

Related terms in Measurement and evidence

The vocabulary for saying how strongly something is known.

signed verdict · hash-prefix lookup · k-anonymity · publication floor · 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 data snapshot

What is data snapshot?

A complete, dated copy of a dataset published as files with a signed manifest, so anyone can mirror it, verify it and build on it without calling the source again. A daily snapshot of every resolve answer lets a consumer work offline and detect later changes.

What does data snapshot not show or guarantee?

A complete, dated copy of a dataset published as files with a signed manifest, so anyone can mirror it, verify it and build on it without calling the source again. It can make a dataset independent of its publisher's uptime; it cannot be fresher than the day it was cut, which is why the live answer carries a freshness window and the snapshot carries its date.

Which area of the glossary does data snapshot belong to?

Measurement and evidence: The vocabulary for saying how strongly something is known.

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