Required-fields demo
Inspect the presence and types of top-level DSSE fields locally. This demo does not verify signatures.
Demo boundary
- Checks that payloadType and payload are strings and signatures is an array. Empty strings are present fields, not missing ones.
- Does not check base64 encoding, signature entries, the full DSSE schema, cryptographic validity or semantic intent.
- No network calls after page load; use small sample inputs.
DSSE Envelope (JSON)
Result:
Check unavailable until the local script starts. If this message remains, enable JavaScript or reload the page.
How to Use
- Paste your DSSE envelope JSON in the first textarea, or load a sample
- Select "Inspect fields". A successful field check is not a valid signature.
The verifier repository currently contains documentation, not an executable verifier. This playground is not a cryptographic or full semantic LMV engine.