HREVN Evidence Bundle

When AI can alter any file, the original evidence matters

HREVN Evidence Bundle turns documents, images and annexes into a verifiable package with hashes, manifests, root hash, QR and blockchain anchoring.

Artificial intelligence is changing how documents, images and files are created, modified and presented. The problem is not only detecting whether something is fake. The key problem is being able to prove what the original documentary package was.

Visual summary of HREVN Evidence Bundle: AI document manipulation risk, file fingerprinting, manifest, root hash, QR and verification of the original package.
The new risk

AI does not only create content. It can also alter evidence.

Today an image, invoice, PDF, screenshot or annex can be modified with tools that are becoming more accessible every month. In a professional setting, that introduces a new doubt: if something is challenged later, how do you prove which file was the original one?

Edited photographs

Replaced PDFs

Altered screenshots

Manipulated invoices

Changed annexes

Revised spreadsheets

Replaced supporting files

The key question

If someone changes a file later, how do you prove it?

Signing a PDF may be enough to protect that specific document. But many professional dossiers are not a single file: they include annexes, photos, spreadsheets, technical documents, screenshots and versions.

HREVN is designed to protect the integrity of the full set.

A digital signature protects one document. HREVN protects the set.

A professional dossier is not always a single PDF. It may include photographs, annexes, spreadsheets, reports, screenshots, supporting documents and versions. HREVN Evidence Bundle makes the full set verifiable.

The HREVN answer

HREVN Evidence Bundle: documents turned into verifiable evidence

HREVN Evidence Bundle takes a set of files and generates a verifiable package: dossier index, individual hashes, package root hash, verification instructions, QR and blockchain anchoring.

  • Each file receives its own digital fingerprint.
  • The package is indexed in a manifest.
  • The full set is sealed with a root hash.
  • A verification QR or URL is generated.
  • Blockchain anchoring is attached.
  • A third party can later check whether the package still matches.
Core statement

HREVN does not tell you whether an image is true. It helps you prove that this image, this document and those annexes are exactly the files that were in the original package.

What it can include

What can be part of the package

PDF report

Contracts

Photographs

Annexes

Spreadsheets

Screenshots

Technical documents

Supporting files

Metadata

Verification instructions

Third-party verification

Verifiable by third parties, without proprietary software

The goal is not for the recipient to trust HREVN blindly. The goal is for them to be able to check the integrity of the package they received.

  • Which files were included in the package.
  • Which hash each file had.
  • What the package root hash was.
  • Whether any file changed later.
  • Which version was issued.
  • When the package was generated.
  • Which QR or record identifies the delivery.
Simple example

If a photograph changes, the hash changes

If someone extracts a photograph from the package, edits it and puts it back in, the fingerprint no longer matches. Verification can show that this is not the same file that was part of the original package.

Original file photo_original.jpg

hash A

Modified file photo_modified.jpg

hash B

Result Does not match

The package is no longer exactly the same.

What it does and does not do

HREVN verifies integrity, not absolute material truth

HREVN helps verify
  • Documentary package integrity
  • Files included
  • Individual hashes
  • Package version
  • Issue date
  • Root hash
  • Verification QR
  • Blockchain anchoring
  • Whether the package changed later
HREVN does not promise
  • Automatically detect every deepfake
  • Certify that the content is true
  • Replace digital signatures
  • Replace expert witnesses
  • Replace lawyers
  • Replace auditors
  • Guarantee absolute legal evidentiary value
HREVN verifies the integrity of the generated documentary package. By itself, it does not certify the material truth of the content.
Where it makes sense

For any professional documentation that should not change after delivery

Technical reports

Professional dossiers

Construction documentation

Grant documentation

Deliverables sent to third parties

Reports with annexes

Photos and evidence sets

Documentation for review

Packages sent to clients, law firms, auditors or public bodies

Next step

Before someone questions a document, lock in the original package

Request an HREVN Evidence Bundle sample and see how a verifiable documentary package is structured.