ARCHANGEL: Tamper-proof video archives with AI and blockchain
In plain English
ARCHANGEL is a way for national archives to prove that a video hasn’t been secretly edited—today or decades from now.
- AI creates a temporal content hash: a compact fingerprint from the audio and visuals across minutes or hours.
- That fingerprint changes if content is tampered with, but stays the same when the video is re-encoded or format-shifted for preservation.
- Fingerprints and the AI models are stored on a proof-of-authority blockchain shared by independent archives, so no single organization can rewrite history.
In a live trial, the national archives of the UK, Estonia, and Norway used ARCHANGEL to safeguard their video collections.
Why it matters: trustworthy digital memory for courts, journalists, and citizens—especially as AI-generated edits become harder to spot.
Read the research: http://arxiv.org/abs/1904.12059v1
Paper: http://arxiv.org/abs/1904.12059v1
Register: https://www.AiFeta.com
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