Official-source-backed technical resource

Test provenance across video transcoding

Compare the original and transcoded outputs with the same documented inspection method. Includes a free implementation worksheet.

Short answer

Compare the original and transcoded outputs with the same documented inspection method. Treat lost or changed provenance as a pipeline finding that needs review.

Download the blank working record (.md)

When to use this guide

A generated video carries credentials before processing, but the delivery service re-encodes it into a smaller format.

This is a fictional implementation scenario. The procedure below is Article 50 Hub's suggested working method, not a prescribed legal form, a customer result or a claim that every step is an additional statutory requirement.

Review procedure

  1. Preserve the original output and record the transcoding configuration.

  2. Inspect credentials before and after the transformation.

  3. Check the delivered file rather than a cached original or preview.

  4. Record any loss, validation change or unsupported format and assign a remediation owner.

What the example review finds

  • The delivered file no longer exposes the original credentials.

  • The inspection result refers to the source file instead of the download.

Keep these example observations separate from your own results. An unknown or untested state should stay open until the relevant evidence has been inspected.

Fields for your working record

  • Original file

  • Transcode settings

  • Delivered file

  • Before result

  • After result

Use the downloadable blank worksheet linked on this page to connect the observed behavior with the deployed system. Add a reviewer, date, evidence reference, unresolved questions and a next action. The worksheet is editable locally and does not upload your records to Article 50 Hub.

Completion and handoff

Close the task only for the scope actually reviewed. Preserve the result that another authorized reviewer can reproduce, identify the owner of remaining work, and record a retest when the implementation changes. A completed worksheet is not a substitute for the underlying evidence.

Decision boundary

This test does not guarantee that a particular credential format survives all transformations or satisfies marking duties.

The official references below provide legal or technical context. Resolve applicability and exception questions with the responsible qualified reviewer; use the product's tools to organize implementation work within that assessment.

Official sources

  1. EU AI Act — legal text and contextEUR-Lex
  2. Commission FAQ — transparency obligations and scopeEuropean Commission
  3. Article 50 Service Desk — read with its amendment notice and current Commission guidanceEuropean Commission
  4. C2PA specifications — validation, assertions and provenanceCoalition for Content Provenance and Authenticity

Last reviewed: 2026-09-23. This is technical implementation information, not legal advice.

Share this source-backed guideLinkedInEmail