Features

Professional blockchain protection for your documents

Immutable Bitcoin seal with tools no other service offers

What does each seal include?

Bitcoin Seal

Your document is permanently anchored on the Bitcoin blockchain with immutable cryptographic proof

Downloadable .ots File

Recibís el archivo .ots con la prueba criptográfica que podés verificar de forma independiente

Email Notifications

We notify you when the seal completes and is available to download

Exclusive Professional Features

Tools that only BTCSeal offers

Automatic Public Certificate

Each seal generates a permanent public URL that allows verifying document authenticity without installing software or uploading files.

  • Instant access without registration
  • Professional verification in one click
  • Share proof easily
  • Clear interface for non-technical users
Exclusive to BTCSeal

Protection QR Banner

We automatically generate a professional PNG banner with QR code pointing to your public certificate. Perfect for emails and documents.

  • Professional corporate design
  • Mobile-scannable QR
  • Immediate download by email
  • Deters unauthorized modifications
Additional protection

Public Access URL

Share a unique permanent URL with clients, partners or authorities. Independent verification without needing original files.

  • Permanent immutable URL
  • Complete forensic data visible
  • Bitcoin Block + TX ID included
  • Suitable for legal contexts
Total Transparency

More BTCSeal Advantages

Total Privacy

Your file is processed in your browser. Only the hash (fingerprint) is sealed, never the document content.

Permanent and Immutable

Once sealed on Bitcoin, your proof is permanent. No one can modify or delete it, not even BTCSeal.

Fast and Automatic

The system processes your seal automatically. You'll receive email notification when it's complete.

Independent Verification

Anyone can verify your seal using standard OpenTimestamps tools, without relying on BTCSeal.

Ready to protect your documents?

Start sealing documents on the Bitcoin blockchain

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Need more information?

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