Frequently Asked Questions

Atestaria is a digital notarization service (Trust-as-a-Service). We register the cryptographic fingerprint (hash) of your file with an immutable timestamp, generating a publicly verifiable certificate. It works like a digital notary with an API.

No. Never. The file never leaves your device. We only register the SHA-256 hash — a mathematical fingerprint that cannot be used to reconstruct the original file. Privacy by design.

Less than 3 seconds. The hash is calculated instantly in your browser, and the registration and certificate issuance happen in real time.

Yes. Atestaria proof is expert technical evidence: cryptographic hash, immutable timestamp, digital signature, and complete audit trail. This constitutes defensible technical evidence in legal proceedings, arbitration, and audits. It does not replace traditional notarization but provides robust complementary technical evidence.

Each certificate has a public URL. Anyone can access and verify authenticity — no account, login, or software needed. Just drag the file or paste the hash.

Anchored proofs are permanent and independent of our operations. The certificate and hash remain verifiable. The protocol is designed for durability.

Any format. Atestaria works with the file hash, not the content. PDFs, images, videos, audio, source code, spreadsheets — everything can be registered.

Yes. We offer a complete REST API with Stripe-style documentation. Register and verify proofs directly from your software, ERP, or platform. We support webhooks for real-time notifications.

Speed (3 seconds vs days), cost (from $0.25 vs notary fees), automation (API integration), and scale (thousands of proofs/month). Atestaria complements traditional notaries with digital technical evidence.

We offer monthly volume-based plans (Starter, Business, Enterprise) and pay-per-use options. Payment via credit card with Stripe. Free trial with 10 proofs, no credit card required.