PNG IHDR caBX jumb jumdc2pa 8qc2pa 6jumb Gjumdc2ma 8qurn:c2pa:28d5850a-714d-4117-9ad2-661d7f4c8d75 jumb )jumdc2as 8qc2pa.assertions jumb )jumdcbor 8qc2pa.actions.v2 cborgactionsfactionlc2pa.createdmsoftwareAgentdnamefGPT-4oqdigitalSourceTypexFhttp://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMediafactionnc2pa.converted jumb (jumdcbor 8qc2pa.hash.data {cborjexclusionsestart!flength7(dnamenjumbf manifestcalgfsha256dhashX {5l2&