CERTIFY · FOREVER
Your idea, certified forever.
Timestamp a text, idea, or file. Prove you had it first.
Your content never leaves your browser — only its fingerprint is sent.
Interactive demo
Certify in 30 seconds
See how Proxae anchors your proof in the Bitcoin blockchain.
Drop
Drop your file here
Hash
SHA-256
Your file never leaves your device.
Anchor
proof-a7f3c912.ots
OpenTimestamps receipt
Confirmed
✓ Immutable proof
Anchored in the Bitcoin blockchain forever.
No sign-up required — free and unlimited.
But isn't Bitcoin just a cryptocurrency?
Not only. At its core, Bitcoin is a tamper-proof global ledger shared by thousands of independent computers. Proxae writes the fingerprint of your document into it — no financial value, no transaction. It's the same technology, used for proof rather than exchange.
People whose work Proxae protected
Freelance designer
Her logo stolen by a ghosting prospect — her Proxae proof established prior existence, 9 months before publication.
See the full scenario →Independent developer
His algorithm reused without credit by a startup — the free proof was enough for an amicable resolution.
See the full scenario →Author
Her manuscript plagiarized by a publisher — the Pro eIDAS certificate enabled a swift settlement.
See the full scenario →The day you need it
Find your proof
In your Proxae dashboard or via your public verification link.
Download the certificate
eIDAS-qualified PDF on Pro, or blockchain verification link.
Present it
To your lawyer, the opposing party, or directly to the court.
How Proxae compares to alternatives
The Soleau envelope, INPI's e-Soleau, a bailiff's report, an INPI filing: each option has its context. Proxae positions itself as a complementary, free, and permanent option for regular use.
Proxae establishes prior existence with cryptographic strength at least equivalent to an official prior art deposit. It does not confer exclusive rights and does not replace a notarial act or legal advice.
