This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Center for Democracy & Technology
cdt.org
did:plc:sj46s4ufqfmqeq34ewaam6n4
Hash matching can slow the spread of NCII, but it is not a silver bullet. It only catches known content, struggles with edits and AI variants, & cannot determine consent or context on its own. That is why governance, not just tech, matters. Read CDT’s brief:
https://cdt.org/insights/digital-fingerprints-human-stakes-governing-ncii-hash-matching/
2026-04-17T19:28:07.073Z