Autentika
Hello!
A few days ago I launched Autentika, a web platform where in just a few steps you can certify and verify any document on the Bitcoin network for a fixed price. Once it’s on chain, it stays there forever.
How it works
- Upload your document (PDF, image, or ZIP) and its SHA-256 hash is calculated automatically.
- That hash is recorded on the Bitcoin blockchain using an OP_RETURN field.
- You receive a link and a QR code so anyone can instantly confirm your file’s authenticity.
- All verifications are public and free—no subscriptions or hidden fees.
Use cases
- Academic diplomas and certificates: issue digital diplomas with irrefutable proof.
- Contracts and agreements: validate the exact version without exposing the content.
- Intellectual property: register sketches, scripts, or inventions with an immutable timestamp.
- Electronic evidence for legal processes: certify screenshots, emails, or chat logs.
How to get started
- Go to https://www.autentika.app
- Open the Operations tab and upload your document.
- If it’s already certified, you’ll see the result instantly. If not, click Certify to get a new hash recorded on chain.
I’d love to hear your thoughts:
- What do you think of the price?
- Can you think of any other use cases?
- Any feedback on the user experience?
Thanks for your time—any suggestions are more than welcome!
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