Glossary

Snapshot

An Arieta Data snapshot is a complete, immutable monthly cut of every SKU, identified YYYY-MM and shipped with a manifest of counts and SHA-256 checksums per shard.

The first snapshot is 2026-11. Licensees receive monthly delta snapshots (upserts plus tombstones). Commercial and Foundation / Lab licences include 12 months of updates and a perpetual right to the snapshots received; Research / Startup data is deleted on expiry.

Sources

Arieta Data changelog

Related terms

Delta snapshot
A delta snapshot contains only what changed since the previous snapshot: new and updated records (upserts) and withdrawn records (tombstones).
Tombstone
A tombstone is a record in a delta snapshot saying that a previously delivered record has been withdrawn and must be deleted by every licensee.
Croissant
Croissant is MLCommons’ JSON-LD metadata format for machine-learning datasets, extending schema.org Dataset with record sets, fields and file descriptions so tools can load a dataset without custom code.

Last updated 13 November 2026 · All terms

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