Canonical product assertion

A single product fact (material, capacity, certification, compatibility, dimension, ingredient, warranty term) expressed in a machine-and-human-readable form, tied to a canonical source and timestamp, that serves as the atomic unit of `product-truth`.

StoreSteady treats canonical product assertion as a reference term because No canonical source: Assertion has no tied source artifact, so it cannot be verified.

• No canonical source changes what a crawler, shopping channel, or AI assistant can safely infer about the merchant surface.
• Without a named category, operators tend to treat canonical product assertion as generic AI noise instead of a reproducible finding with evidence and a validation path.

• discrete, verifiable, objective product facts; their canonical source artifact; the timestamp of last verification; the version of the canonical source.

Extract assertions from PDPs, marketing pages, and structured data. For each, verify the asserted fact against the cited source's current version. Flag assertions with no source, stale verification, or version mismatch.

• "Best battery on the market" - subjective; not an assertion.
• "Long-lasting" - vague; not a verifiable assertion.

1. Identify the merchant-controlled source that creates the canonical product assertion signal.
2. Reconcile visible copy, machine-readable data, policy text, feed state, and checkout behavior where the term applies.
3. Keep the fix high-level in public docs; detailed remediation belongs inside paid scan workflows.

Rerun the same evidence capture used for detection. The finding is validated only when the original canonical product assertion signal no longer reproduces and adjacent source surfaces still agree.

• GS1 Master Data Quality Framework →
• NIST GenAI Profile - provenance and source verification →

• Product truth →
• Claim conflict →
• Provenance stamp →

• StoreSteady public methodology →
• GS1 Master Data Quality Framework →
• NIST GenAI Profile - provenance and source verification →