Digital certificate

Proof of what you filed, and when

Every document you upload gets a certificate: the date we received it, its digital fingerprint, and a seal from an independent service, anchored to the Bitcoin blockchain.

What the certificate records

One page that shows exactly what you filed and when it arrived.

The date received
When your signed document reached us, in your own time zone.
A digital fingerprint
A SHA-256 fingerprint of the exact file. Change a single pixel and it no longer matches.
An outside seal
The fingerprint is signed by an independent timestamping service the moment you file.
Anchored to Bitcoin
The seal is anchored in a Bitcoin block, where the date cannot be edited or backdated.
Nothing private leaves
Only the fingerprint is sent out. No page, no name and no part of your document.
Every version
Amend your document and the new version gets a certificate of its own.

One page, kept with your document

Download it from your account any time, print it, and keep it with the signed original.

A digital certificate for a sample holder, showing the date received, the SHA-256 fingerprint, and the independent seal with its Bitcoin block
A sheet of its own
The certificate is separate from your document, so your document stays exactly as you signed it.
Anyone can check it
The fingerprint and the seal can be checked with free tools, without a WearableDocs account.
Your file, unchanged
We store your document exactly as it was received and never alter it.
Ready when you need it
If you ever need to show what you filed and when, the certificate is ready to print.
The proof, named
The certificate names the proof page where the seal can be looked up.

Why it matters

1 page

Per version

A single sheet to keep with your signed original.

32 bytes

All that leaves

Only the fingerprint goes to the outside service. No page, no name and no part of your document.

0

Ways to backdate

Once anchored in Bitcoin, the date cannot be edited or moved by anyone, including us.

Proof you can hold in your hand

A certificate comes with every document you upload, on every plan.