Prove you
created it first.

Upload any file and get a legal-grade proof of existence in 60 seconds. Anchored on public blockchains. Accepted as evidence in EU courts.

Start free → How it works
✓ Free — 5 proofs/month ✓ File stays on your device ✓ Proof valid forever
Try it — client-side demo
📄
Drop any file here
SHA-256 hash computed in your browser — nothing uploaded
📁
Computing hash...
1Hash
2Sign
3Time
4Chain
5Store
✓ CERTIFIED
File
SHA-256
Merkle
Timestamp
🇪🇺 eIDAS ⛓️ Tezos 🌐 Aleph

This was a demo. Create an account to get real, verifiable proofs.

Create free account
HOW IT WORKS

Three steps. Under 60 seconds.

1

Upload your file

A unique fingerprint is computed on your device. Your file never leaves your computer.

2

We anchor the proof

Your fingerprint is signed, timestamped, and recorded on the Tezos blockchain. Immutable and public.

3

Share or store it

Get a PDF certificate and a verification link. Anyone can check it — no account needed, no expiry.

WHO IS THIS FOR?

Anyone who needs to prove "I created this first"

📸

Photographers

Prove you took the photo. Win copyright disputes with timestamped originals.

"My RAW file was certified 2 weeks before they posted it"
🎨

Designers & Artists

Protect your work before sharing with clients. No more stolen concepts.

"I certified the brief before the pitch meeting"
💻

Developers

Certify code, configs and deployments to prove authorship and priority.

"The commit hash was anchored before the fork appeared"
✍️

Writers & Musicians

Prove you wrote it first — blog posts, lyrics, beats, manuscripts.

"I certified my lyrics 3 weeks before the copycat released"
📹 SEE IT IN ACTION

Protect your work in 60 seconds

⛓️ TRIPLE ANCHORING

Three independent proofs

Legal timestamp + blockchain + decentralized storage

eIDAS TSA

RFC-3161 Qualified

Court-admissible timestamp in 27 EU countries.

EU legal presumption
Downloadable .tsr token
Court recognized

Tezos Mainnet

Proof-of-Stake

Immutable on-chain anchoring. Verifiable on tzkt.io.

Energy-efficient
Public verification
Immutable forever

Aleph Cloud

Decentralized Storage

Redundant metadata. No single point of failure.

IPFS-compatible
Cross-chain
No SPOF
PRICING

Simple, transparent pricing

Start free. Upgrade when you need more.

Free
$0
5 proofs/month · No credit card
✅ Digital fingerprint
✅ Blockchain anchor
✅ PDF certificate
✅ Verification link
— Evidence Pack
— eIDAS timestamp
Start free
⭐ Most Popular
Pro
$29/mo
Unlimited proofs · Full evidence bundle
✅ Unlimited proofs
✅ Everything in Free
✅ Digitally signed & certified timestamp
✅ Decentralized backup
✅ 📦 Evidence Pack (ZIP)
✅ API access & batch upload
— eIDAS legal timestamp
Go Pro
⚖️ Legal
$49/mo
Court-ready · 27 EU countries
✅ Unlimited proofs
✅ Everything in Pro
✅ 🇪🇺 EU-certified legal timestamp (eIDAS)
✅ ⚖️ Court-ready evidence bundle
✅ Priority legal support
✅ Compliance-ready exports
Go Legal

Cancel anytime · Proofs stay valid forever · Full plan details →

🔌 REST API

Build with SBIX Certify

Integrate legal timestamping into your apps in minutes.

  • Bearer token authentication
  • File upload or hash-only mode
  • Public verification endpoint
  • Evidence Pack download
  • 100–1000 requests/hour
View API Docs →
Python
import requests

response = requests.post(
    "https://certify.sbix.io/api/v1/certify",
    headers={"Authorization": "Bearer API_KEY"},
    files={"file": open("artwork.png", "rb")}
)
print(response.json())

Ready to protect your work?

Join creators who prove ownership before sharing. Start in 60 seconds.

Start free — 5 proofs/month → Try the demo first