Observed Signal · Oct 22, 2026 · Market Signal · Source: Prebid · Impact: 2/5

Provenance and Reporting: Who Made Your Content, and How Did AI Use It?

Executive Signal Summary

By Erik Svilich (Encypher) and Alex Springer (SPUR Coalition) For the Prebid LLM Taskforce. Part four of the publisher series. Disclosure: Encypher sells C2PA provenance software, co-chairs the C2PA text ...

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Primary Source Grounding & Direct Attribution
Direct Origin Attribution
Primary Reporting: Prebid•Published: Oct 22, 2026
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