Digital Evidence

Now You Must Prove Your Records Are Real

Deepfakes let anyone dismiss real video, audio, and documents as fake, and let fabrications pass as genuine. Here is how owners keep their records provable.

By Leon Soliman · 2026-06-30 · 2 min read

Key takeaways

Deepfakes have created what researchers call the liar's dividend: once anyone can fake a recording, anyone can also dismiss a genuine one as fake, so the burden shifts from proving a record false to proving it real.
The deepfake defense is already in court. In Mendones v. Cushman and Wakefield a California judge found that a video of a real witness was AI-generated, dismissed the case with prejudice, and imposed terminating sanctions.
Authentication is tightening. A proposed United States Federal Rule of Evidence 707 would hold machine-generated evidence to the reliability standard used for expert testimony, and courts increasingly demand provenance before they trust a recording.
The exposure is not only litigation. M&A diligence, insurance claims, regulatory inquiries, employment disputes, and succession all turn on records whose authenticity can now be contested.

The Burden of Proof Has Quietly Flipped

For a century a photograph, a recording, or a signed document was treated as close to self-proving. Deepfakes end that assumption. When a convincing fake costs minutes to produce, a court, a counterparty, or an insurer can no longer assume that a genuine record is genuine, and the person holding the truth now carries the burden of establishing it.

Researchers named this the liar's dividend: the more fakes circulate, the easier it becomes to wave away authentic evidence as one more fabrication. The technology cuts both ways. Fabricated records are presented as real, and real records are denied as fabricated, and both moves now succeed often enough to matter in a dispute.

Courts Are Already Sorting Real From Fake

This is no longer theoretical. In Mendones v. Cushman and Wakefield a California judge reviewed video of a witness, identified it as AI-generated audio and video of a real person, dismissed the case with prejudice, and imposed terminating sanctions on the party that filed it. Judges across jurisdictions report parties invoking the mere possibility of AI to cast doubt on authentic exhibits.

In response the rules are hardening. A proposed United States Federal Rule of Evidence 707 would subject machine-generated evidence to the same reliability scrutiny as expert testimony, and German courts are testing how far a screenshot or a recording can be trusted without independent proof of origin. The direction is consistent: a record is worth what its provenance can show, not what it appears to be.

Make Your Records Provable Before You Need Them

The defense is not better detection software, which always lags the fakes. It is provenance by design. Capture content credentials, cryptographic signatures, and a tamper-evident chain of custody at the moment a record is created and stored, and keep a documented retention trail, so the authenticity of a board minute, a contract, a call recording, or a security feed can be demonstrated rather than asserted.

Owners and family offices hold exactly the records that disputes turn on, often for decades. The time to make them provable is when they are created, not when an opponent in litigation or a diligence team in a deal first claims they could be fake. By then the leverage has already moved.

Frequently asked questions

What is the liar's dividend?

It is the advantage deepfakes hand to anyone who wants to deny the truth. Once realistic fakes are common, a person can plausibly dismiss a genuine video, recording, or document as AI-generated, which shifts the effort from proving a record is false to proving it is real.

How do we protect records we may need in a future dispute?

Establish provenance at the point of creation. Sign and time-stamp records, attach content credentials, store them with a tamper-evident chain of custody, and document your retention, so their origin can be shown independently rather than argued after the fact.

Proof used to be the easy part of a dispute. It no longer is. The records that decide your most important matters are now only as strong as the provenance you can show for them, and that provenance has to be built in before anyone has a reason to deny what you hold.

deepfake digital evidence liars dividend provenance content credentials chain of custody litigation M&A diligence Mittelstand family office

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Servola

Servola helps owners and family offices make their critical records provable by design, with content credentials, cryptographic signing, and a documented chain of custody, so your evidence holds when a deepfake objection or a diligence challenge arrives.

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