Deepfake detection is losing. Timestamped proof-of-existence might be the other half of the answer

A developer writing as Kimeric argues that deepfake detection is losing ground, with some benchmarks showing failure rates around 45-50% on recent generative models, and proposes timestamped proof-of-existence systems such as OpenTimestamps as a complementary approach. The post points to a free book, time2act, which frames the problem as "detection is not enough" and connects it to the Berkeley Protocol on digital open-source investigations. Kimeric asks whether others have used proof-of-existence or timestamping schemes in forensic or content-provenance pipelines and what broke when making them verifiable offline.

I've been reading into why deepfake detectors keep losing ground some benchmarks put failure rates around 45-50% on recent generative models , and it pushed me toward a question that's more about infrastructure than machine learning: instead of trying to prove after the fact that a piece of media is fake, what if you could cheaply prove, at the moment of capture, that it existed in a specific form at a specific time? That's the core idea behind "proof of existence" / timestamping systems that a lot of the DFIR and blockchain-timestamping communities already work with OpenTimestamps being the best-known example . The mechanism is simple and doesn't require trusting a central authority: None of this proves a photo is "true" in a philosophical sense. It proves a specific bit-for-bit artifact existed at time T, which is exactly the kind of chain-of-custody primitive that forensic investigators, journalists and human-rights researchers already work with, just applied earlier in the pipeline at capture, not at review . I found this framed well in a free book called time2act, which digs into this from a "detection is not enough" angle and connects it to the Berkeley Protocol on digital open-source investigations. It's free, available in English/Spanish/Catalan, web/PDF/EPUB: https://www.time2act.info/read/en/ https://www.time2act.info/read/en/ Curious whether others here have worked with proof-of-existence or timestamping schemes in forensic or content-provenance pipelines, and what broke when you tried to make them verifiable offline. — Kimeric Disclosure: drafted with AI assistance, per DEV's AI content guidelines.