Create a local SHA-256 fingerprint and optional Bitcoin timestamp receipt
Select a PDF in your browser. HashDocket calculates SHA-256 locally, so the PDF itself does not need to leave your device. You can then create a free OpenTimestamps receipt or optionally publish the fingerprint in the public registry.
Open HashDocketHow it works
Useful for signed PDFs, drafts, reports, protocols, exhibits and archived versions.
Privacy first
HashDocket does not need the original file for the main workflow. The file is hashed locally and only the cryptographic fingerprint is used for verification and optional publication.
HashDocket is an independent cryptographic registry and is not a qualified electronic timestamp or notary service.