Signed by you, at issuance
The certificate carries your signature over its exact contents. Change a word afterwards and the signature stops matching.
Authenticity
A certificate the owner keeps and anyone can check.
Every unit gets a signed digital certificate bound to that exact item. It travels with the owner, survives resale, and is verified from public evidence — not by calling your customer service.
What a certificate does
Signed once, checkable forever.
A paper card can be copied and a database lookup only works while the database does. A signed certificate is different: it proves who signed it and that nothing has been altered since, and it does that without asking anyone for permission.
Bound to one unit
Linked to the individual item by an NFC tag or a serial reference — not to the model, not to the batch.
Verified, never used up
Presenting a certificate checks it and leaves it intact. It works at the first sale and at every one after.
It stays with the item
When the piece changes hands, the certificate goes with it. The next owner inherits the evidence, not a promise.
How it works
From a production run to a certificate per unit.
Decide what you are certifying
Model, materials, edition, serial, date, workshop — whatever your buyers actually ask about.
Bind it to the item
An NFC tag in the product or its packaging, or a printed serial reference where a tag will not fit.
Issue and sign
One certificate per unit, signed with your key and anchored on Bitcoin. You never handle a node or a wallet.
Anyone can check it
Buyers, resellers and platforms verify from public evidence, with no account and no call to you.
Who this is for
Anyone whose customers ask if it is real.
Premium manufacturers
Where the difference between genuine and counterfeit is most of the price.
Limited editions
Numbered runs where proving which number you hold is the whole point.
Art and design
Works and objects whose provenance needs to outlive the gallery that sold them.
Resale and secondary markets
Where the second buyer needs evidence the first buyer cannot forge.
What the signature does and does not prove
The certificate is a Bitcoin Digital Object of the certificate type: a signed statement about a subject, presented and verified but never consumed. Verification proves two things — that a specific key signed the statement, and that it has not been altered since. Connecting that key to a real-world manufacturer is a separate question every verifier answers with its own trust sources. Evidence, not a verdict, and saying so is what makes the evidence worth something.
The kinds of Bitcoin Digital ObjectsLet the product prove itself.
Tell us what you make and what buyers ask about it. We will tell you what the certificate should say and how to bind it to each unit.
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