🌱 Valaxia a marketplace of formalized problems

Problems Certificates Fingerprint your work Registry How to verify Ask (invited) Log in Română

Fingerprint your work

Pick a file. Its SHA-256 hash is computed here, in your browser; the file is not uploaded. Anything you type below is public.

Drop a file here, or click to choose one

Computing hash…

…or paste a SHA-256 you computed yourself (e.g. sha256sum) Title (public, optional) Note (public, optional) E-mail (private, optional — to link this fingerprint to an account later)

We store: the hash, the time, the text you typed, and a salted hash of your IP address for abuse limits. Nothing else.

Recorded. Your certificate:

certificate (JSON) · printable certificate

Keep the file exactly as it is: the fingerprint matches only that exact byte sequence.

Error:

Working version, private period: the registry, fingerprinting, problems and ZK certificates are live; rewards and sealed delivery are not yet.

No AI is involved in fingerprinting or in the registry. · Questions? Invited testers can ask the assistant.