Public registry

The C-NDA public registry.
Proof of existence, on record.

An index of certificates whose owners chose to list them. Each entry shows that a protection exists (its code, evidence hash and blockchain reference) plus only the fields the owner decided to publish. Never documents, never transcripts, never emails.

Exact match. Use the advanced search to browse by type, date, network or published title.

Advanced search

Searches only titles their owners chose to publish.

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Entries

0 entries

No entries match.

The registry lists only certificates their owners chose to publish. A certificate that is not listed can still be verified by code at /verify.

What the registry is, and is not

Opt-in, per certificate

Nothing is listed by default. Owners choose to list a certificate and which of three fields to publish: title, names of the bound parties, their companies.

Existence, not contents

An entry proves that a certificate exists, when it was issued and what its evidence hash is. Documents, transcripts, emails and technical data are never part of it.

Withdrawable, verification unchanged

Owners can remove an entry at any time. The certificate, its hash and its blockchain anchor remain exactly as they were, verifiable by code on the verification page.