Don't take our word for it. Verify it yourself.
For an evidence product, trust isn't claimed — it's verified. We notarized a public witness document on the Arweave blockchain. Here is its proof, and how to check it end to end, without us.
eBmnQm4r0k-I9XHuKudIS7wdX5VM_sCbXFO-9WF3Dlo
This transaction is permanent and public. It contains the proof document (SHA-256 fingerprint, post-quantum signature, eIDAS timestamp token) and the encrypted file archive.
How to verify it, in 4 steps
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1
Retrieve the proof
Open the TXID on Arweave: you access the proof document (JSON) and the encrypted archive, exactly as anchored at the moment of deposit.
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2
Verify the fingerprint and signature
Recompute the SHA-256 fingerprint, check the post-quantum Dilithium signature and the timestamp token (RFC 3161) with standard tools — openssl, arweave-js, any RFC 3161 validator. No BlockProve software required.
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3
Check the date
The qualified timestamp token proves that this exact fingerprint existed at the stated second: a date with reinforced legal value across the European Union (eIDAS).
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4
Decrypt the archive (optional)
To recover the original file, the app asks for the decryption password. By default, you are the only one who holds it (zero-access encryption). For this public witness, the password is provided below so you can confirm that the decrypted file matches the anchored fingerprint exactly.
Decryption password (public witness)provided on request at contact@blockprove.me
Why this is the ultimate proof
Even this public document was encrypted locally before any upload. Its integrity and date can be verified without ever accessing the content: that's the principle of zero-access encryption. For your own deposits, no one — not even BlockProve — can decrypt your files without your password.