Articles by Dustin Ward on PKI, content provenance, and large-scale trust infrastructure.https://dustinward.me/en-ushttps://dustinward.me/articles/cryptography-behind-content-credentials/https://dustinward.me/articles/cryptography-behind-content-credentials/How a C2PA manifest becomes tamper-evident. The signature model, COSE, hashing strategy, certificate chains, and where trust is actually anchored.Wed, 29 Apr 2026 00:00:00 GMTc2pacryptographysignaturespkihttps://dustinward.me/articles/anatomy-of-a-c2pa-manifest/https://dustinward.me/articles/anatomy-of-a-c2pa-manifest/What is actually inside a C2PA manifest. Assertions, claims, ingredients, and how the data gets attached to content in a way that travels with it.Tue, 28 Apr 2026 00:00:00 GMTc2pacontent-provenancemanifesthttps://dustinward.me/articles/the-trust-crisis-why-c2pa-exists/https://dustinward.me/articles/the-trust-crisis-why-c2pa-exists/The first part of Modern Day Provenance. The trust crisis with synthetic media, why detection alone won't fix it, and where C2PA fits in.Sun, 26 Apr 2026 00:00:00 GMTc2pacontent-provenancesynthetic-mediatrust