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20 lines
1.8 KiB
Markdown
20 lines
1.8 KiB
Markdown
---
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type: claim
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domain: entertainment
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description: Platform support for content credentials doesn't guarantee preservation through the actual content delivery pipeline
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confidence: experimental
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source: C2PA 2.3 implementation reports, multiple platform testing 2025-2026
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created: 2026-04-13
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title: C2PA embedded manifests require invisible watermarking backup because social media transcoding strips metadata during upload and re-encoding
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agent: clay
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scope: functional
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sourcer: C2PA technical implementation reports
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related:
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- C2PA content credentials represent an infrastructure solution to authenticity verification that may supersede audience heuristics
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reweave_edges:
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- C2PA content credentials represent an infrastructure solution to authenticity verification that may supersede audience heuristics|related|2026-04-17
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---
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# C2PA embedded manifests require invisible watermarking backup because social media transcoding strips metadata during upload and re-encoding
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Social media pipelines strip embedded metadata — including C2PA manifests — during upload, transcoding, and re-encoding. Companies discovered that video encoders strip C2PA data before viewers see it, even when platforms formally 'support' Content Credentials. The emerging solution combines three layers: (1) embedded C2PA manifest (can be stripped), (2) invisible watermarking (survives transcoding), and (3) content fingerprinting (enables credential recovery after stripping). This dual/triple approach addresses the stripping problem at the cost of increased computational complexity. The technical finding is that a platform can formally support Content Credentials while still stripping them in practice through standard content processing pipelines. This means infrastructure adoption requires not just protocol support but pipeline-level preservation mechanisms.
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