As-of Data

Documentation

A small, fixed data contract. Three datasets share one schema (asof-1) and one change-detection engine.

Change types

new
A record id not present in the previous active set.
amended
Same id, different SHA-256 of the original payload.
removed
Present previously, absent today. A tombstone copy of the previous version is emitted with valid_to set to the previous date. This is an inference from absence, not a record observed today.
reissued
An id that was previously removed appears again; the original first_seen is reused.

What is deliberately absent

Access

The public pages and manifests are free to read. Bulk delivery of the daily shards is available through the Apify Store dataset actors; those actors read pre-generated shards only and never contact the source agencies at run time.