First packet
$10.00
Your first Proof of Ownership packet in a purchase.
Pricing
Proof of Ownership pricing
Create a private Proof of Ownership PDF on your device and anchor its cryptographic fingerprint to Bitcoin. Choose between 1 and 20 packets in Step 2 and see the complete total before paying.
Your photos, notes, serial number, and PDF remain under your control. Only the PDF fingerprint is broadcast to Bitcoin.
Current Proof of Ownership pricing
Each additional packet
$7.50
A $2.50 saving on every additional packet purchased at the same time.
Purchase limit
20 packets
Choose any whole-number quantity from 1 to 20 in Step 2.
Total = $10.00 + $7.50 × each packet after the first.
The amount updates in Step 2 before payment. An eligible promotion code may reduce the
displayed total when applied at checkout.
Example totals
| Proof packets | Total | Average per packet |
|---|---|---|
| 1 | $10.00 | $10.00 |
| 2 | $17.50 | $8.75 |
| 3 | $25.00 | $8.33 |
| 5 | $40.00 | $8.00 |
| 10 | $77.50 | $7.75 |
| 20 | $152.50 | $7.63 |
What each Proof of Ownership packet includes
- On-device PDF creation using your instrument photos and ownership notes.
- A SHA-256 cryptographic fingerprint of the completed PDF.
- Broadcast of that fingerprint in a Bitcoin transaction.
- Bitcoin confirmation tracking and a downloadable transaction receipt.
Verify does not upload or store your photos, notes, serial number, or Proof of Ownership
PDF. You must save the PDF and receipt somewhere safe. Only the PDF fingerprint and the
Bitcoin transaction are public.