OriginFold A record has
more than one date.
The observation date describes the period. available_at controls whether a version qualifies at a research date. A later correction cannot appear in an earlier information set. Source-faithful records are immutable; revisions create new versions.
Observation dateWhat period?
The period the number describes.
Availability timeKnown when?
When this version became eligible.
| Date or time | What it describes |
|---|---|
| Observation | The period measured, such as a month of inflation. |
| Event | When the source event occurred. |
| Report | The source-defined report date or reporting period; read the field definition. |
| Filing | A filing's submission or acceptance time, as explicitly defined by the source field. |
| Settlement | When a transaction settles, rather than when it was traded. |
| Block | The chain's recorded block timestamp; it does not establish when OriginFold could serve the record. |
available_at | The documented availability of this version. It cannot be replaced by any of the dates above. |
A UTC as_of cutoff selects the information set available by that moment. With no cutoff, there is no availability-time filter within the explicitly pinned dataset version. This does not prove that every later upstream release has been collected. Historical availability is supported only where source and provenance evidence establish it. Selecting a past observation date alone does not prevent hindsight.