Create NeuroCrypt Seal · Hash-Only Proof of Presence

Seal a Digital File with the NeuroCrypt Protocol

Select any file to generate a NeuroCrypt envelope using the Real Intent Protocol (RIP). Your file is processed locally; only SHA-256 hashes and minimal metadata are used to create a digital authorship seal and proof of human presence.

Attestation Input

Choose a file and generate a sealed NeuroCrypt envelope compatible with the hash-only proof of presence protocol.

File

Files are read locally in your browser. For this demo build, keep file sizes under your configured limit. No content is uploaded to the NeuroCrypt service.

Waiting for file…

Envelope JSON

Save this JSON as envelope.json alongside your original file. Together they form a NeuroCrypt digital evidence bundle that can be verified later, or packaged into a full evidence ZIP on the verification page.

Protocol Guarantees

Hash-only architecture.
NeuroCrypt uses SHA-256 file digests and canonical JSON to construct envelopes. Your actual content is never persisted server-side, enabling a privacy-first proof of presence protocol.
Client-side processing.
File hashing and envelope creation occur entirely in your browser using the NeuroCrypt core library before any optional network call is made.
Offline survivability.
The NeuroCrypt envelope is a self-contained digital authorship seal that can be verified by any independent implementation of the protocol, even offline.

NeuroCrypt is an intent and provenance sealing protocol. In this v3.inf.1 public implementation, it runs in hash-only mode: it is not biometric authentication and does not collect or store biometric templates or behavioral profiles.