Validate a document

Paste a BOM or attestation below and it is checked against every schema this site publishes — the same files, byte for byte, that the registry pages render. Nothing leaves your machine: validation runs entirely in your browser; there is no upload and no server, and it works offline once loaded.

Validate

This checks shape only — JSON Schema conformance. Hash recomputation, chain continuity, signature and Fulcio identity checks, and sidecar joins are verifier work, not schema work.