Protect your creations. Forever.
Engrave your document's fingerprint on the Ethereum blockchain. An unfalsifiable, permanent proof of authorship for EUR 2.
How does it work?
What you will do with ETcH
1
Select your document
Drop your file(s). Nothing leaves your browser.
2
Hash computation
The SHA-256 algorithm generates a unique 64-character fingerprint.
3
Secure payment
Pay EUR 2 by credit card via Stripe. No cryptocurrency needed.
4
Etched on Ethereum
The fingerprint is recorded on the blockchain with an unfalsifiable timestamp.
First European ruling in Marseille, March 2025. Admissible as evidence under the European Union legal framework — and in many other jurisdictions.
🇫🇷France🇪🇺EU🇮🇹Italy🇯🇵Japan🇦🇺Australia🇨🇦Canada🇺🇸USA
Browse legal guides by countryAlready anchored on Ethereum
Each anchoring is an immutable transaction on the blockchain.
Ready to protect your creation?
No account to create. No software to install. Drop your file, pay EUR 2, it's anchored.