Synthetic demonstration

See how repeated features can agree on one point in time.

This deterministic teaching demo uses invented numeric symbols and timestamps. It includes no media, commercial-title fingerprint, production catalog, microphone capture, file upload, or catalog API call.

Local teaching simulator

Try a deterministic case

Comparison runs locally

Clean excerptSix invented landmarks align at an offset of 2.5 seconds.Later excerptThe same symbols begin later in the synthetic timeline.Missing and noisySome symbols are missing or unrelated, while four still agree.Intentional no-matchUnrelated invented symbols should be rejected, not forced into a result.

Choose a case and run it. All symbols and timestamps are embedded in this page's JavaScript.

Verify the comparison boundary

The embedded comparison makes no media, microphone, catalog, or matching API request. The surrounding SINK page may still send ordinary hosting, analytics, and diagnostic traffic described in the Privacy Policy. In the Network panel, running a case should add no fingerprint-demo request.

Synthetic demo version 0.1, reviewed August 11, 2026.