{"slug": "deepfake-detection-is-losing-timestamped-proof-of-existence-might-be-the-other", "title": "Deepfake detection is losing. Timestamped proof-of-existence might be the other half of the answer", "summary": "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.", "body_md": "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?\n\nThat'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:\n\nNone 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).\n\nI 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/)\n\nCurious 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.\n\n— Kimeric\n\n(Disclosure: drafted with AI assistance, per DEV's AI content guidelines.)", "url": "https://wpnews.pro/news/deepfake-detection-is-losing-timestamped-proof-of-existence-might-be-the-other", "canonical_source": "https://dev.to/kimeric_t2a/deepfake-detection-is-losing-timestamped-proof-of-existence-might-be-the-other-half-of-the-answer-l19", "published_at": "2026-09-13 16:43:13+00:00", "updated_at": "2026-09-13 17:14:34.862340+00:00", "lang": "en", "topics": ["ai-safety", "ai-ethics", "ai-policy"], "entities": ["OpenTimestamps", "time2act", "Berkeley Protocol", "Kimeric", "DEV"], "alternates": {"html": "https://wpnews.pro/news/deepfake-detection-is-losing-timestamped-proof-of-existence-might-be-the-other", "markdown": "https://wpnews.pro/news/deepfake-detection-is-losing-timestamped-proof-of-existence-might-be-the-other.md", "text": "https://wpnews.pro/news/deepfake-detection-is-losing-timestamped-proof-of-existence-might-be-the-other.txt", "jsonld": "https://wpnews.pro/news/deepfake-detection-is-losing-timestamped-proof-of-existence-might-be-the-other.jsonld"}}