Confirm the EU Commission Code of Practice multi-layer requirement: both C2PA signed metadata and an imperceptible watermark (SynthID / Digimarc / TrustMark / c2pa.soft_binding) are declared present. Fails if only one layer. Emits DUAL_LAYER_PRESENT or DUAL_LAYER_INCOMPLETE.
EU AI Act Art.50Code of PracticeSynthIDC2PAW3C VC §13.11Zero PII
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Scope
Verifies the EU Commission Code of Practice multi-layer disclosure requirement under AI Act Art.50. Both a C2PA-signed metadata assertion AND an imperceptible watermark signal must be declared present. A single-layer declaration (C2PA only or watermark only) triggers DUAL_LAYER_INCOMPLETE. Middle stage of the ai-content-disclosure-conformance chain — consumes art-126, feeds art-128.