Verify against the ledger.

Two checks, for the two sides of every registration. Pick yours.

For AI labs

Verify a dataset

Audit every receipt over your exact review set before licensing it.

For data contributors

Verify your data

Check that a file you contributed has a receipt on the ledger.

Paste or upload the record IDs your contributing app gave you. Trace renders every receipt in the set on a shareable page.

Up to 10,000 IDs pasted. Larger sets: switch to Upload CSV.

Dataset name

Contributing app

Description (optional)

Drop a file you contributed through an app like Kled. Your browser fingerprints it locally and opens its receipt. Nothing is uploaded.

Drop the file

Any file type. Hashed in this tab, never uploaded.

Or click to choose a file

This is not uploaded.