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VERIFICATION & DELIVERY

Certifying Mix Takes for Clients & Labels

How to generate cryptographic SHA-256 verification records for client mix handoffs, stem deliveries, and copyright timestamping.

What is a Take Certificate?

A Take Certificate is a digital proof of completion. Think of it as a notarized digital receipt for your song. It records the exact SHA-256 cryptographic fingerprints of your DAW session file and all audio stems, paired with an exact UTC timestamp.

Mixing engineers and producers use Take Certification to:

  • Lock in Client Sign-Offs: Prove the exact audio stems you delivered to a record label or artist so no one can accidentally modify files later and claim you delivered the wrong mix.
  • Protect Unreleased Songs: Create an immutable, timestamped record proving your music existed on a specific date before sending demos out.
  • Permanent Milestone Safety: Certified Takes are automatically protected from ever being pruned or deleted during local disk cleanups.

Where to Find Certification in the App

Certifying a mix takes three clicks:

  1. Open your project in Sabes Pro and click on your final approved Take on the Take Timeline.
  2. In the right-hand action panel, click the blue button: Certify Milestone (Shield icon).
  3. Sabes Pro will calculate cryptographic checksums for your session file and all linked WAV stems in seconds.
  4. Click Download Certificate PDF or Copy Proof Link.

What is Inside a Take Certificate?

The exported certificate (available as a clean PDF or JSON manifest) includes:

  • Project & Track Name: Your song title and active workspace directory.
  • Root Cryptographic Hash: A unique 64-character SHA-256 fingerprint representing the entire project state.
  • Stem Checksum Manifest: Individual hashes for every rendered WAV file, vocal lead, drum bus, and instrumental stem.
  • Verified Timestamp & QR Code: A scannable QR code linking to a public verification page where labels can verify integrity without needing Sabes Pro installed.

How Clients or Mastering Houses Can Verify It

When a client or mastering engineer receives your certified stems package, they can verify it in seconds:

  1. Open the Sabes Pro desktop app, click Tools → Verify Certificate (or scan the QR code on the PDF in any web browser).
  2. Drop the audio stem folder or certificate JSON onto the screen.
  3. Sabes Pro verifies that every stem matches its original cryptographic signature bit-for-bit, showing a reassuring green Verified Authentic checkmark.

Next Steps

Want to share interactive waveform previews with clients for feedback? Check out our FAQ on Client Review Links.