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A stored validation report is interpretable only with its options. No inspected validator checks creative decisions (grade, mix levels).\n\nCurator qualifications: Code/licence texts read 2026-10-22; no package validated; not legal advice. Netflix Photon IMF App 2E validator (S7-S9) from producer reading (audio constraints absent per producer).\n\nLimitations: Code/licence texts read 2026-10-22; no package validated; not legal advice.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://github.com/ClairMeta/ClairMeta/blob/b3b66a024174976ffbde4b6dfff2b599e84e4757/README.rst","note":"libdcp src/verify.cc at 891facc8 L1898-1908, L536-556; ClairMeta README.rst at b3b66a02 L104-126"},{"url":"https://github.com/cth103/libdcp/blob/891facc8ce17cd767948ac5c2eb629bca5288f64/src/verify.cc","note":"libdcp src/verify.cc at 891facc8 L1898-1908, L536-556; ClairMeta README.rst at b3b66a02 L104-126"},{"url":"https://github.com/Netflix/photon/blob/d5fe1494adc83000ef744d5c01bd714a778fac00/README.md","note":"libdcp src/verify.cc at 891facc8 L1898-1908, L536-556; ClairMeta README.rst at b3b66a02 L104-126"},{"url":"https://github.com/Netflix/photon/blob/d5fe1494adc83000ef744d5c01bd714a778fac00/src/main/java/com/netflix/imflibrary/validation/IMFApp2E2021ConstraintsValidator.java","note":"libdcp src/verify.cc at 891facc8 L1898-1908, L536-556; ClairMeta README.rst at b3b66a02 L104-126"}]},"categories":["T10","T20"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://github.com/ClairMeta/ClairMeta/blob/b3b66a024174976ffbde4b6dfff2b599e84e4757/README.rst","claim":"'Verified' means different things across open DCP validators: libdcp checks asset hashes only when the option is on and the file is under a configurable size limit, and ClairMeta check profiles can bypass the PKL hash test and downgrade checks to warnings. 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A stored validation report is interpretable only with its options. No inspected validator checks creative decisions (grade, mix levels).\n\nCurator qualifications: Code/licence texts read 2026-10-22; no package validated; not legal advice. Netflix Photon IMF App 2E validator (S7-S9) from producer reading (audio constraints absent per producer).\n\nLimitations: Code/licence texts read 2026-10-22; no package validated; not legal advice.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://github.com/ClairMeta/ClairMeta/blob/b3b66a024174976ffbde4b6dfff2b599e84e4757/README.rst","note":"libdcp src/verify.cc at 891facc8 L1898-1908, L536-556; ClairMeta README.rst at b3b66a02 L104-126"},{"url":"https://github.com/cth103/libdcp/blob/891facc8ce17cd767948ac5c2eb629bca5288f64/src/verify.cc","note":"libdcp src/verify.cc at 891facc8 L1898-1908, L536-556; ClairMeta README.rst at b3b66a02 L104-126"},{"url":"https://github.com/Netflix/photon/blob/d5fe1494adc83000ef744d5c01bd714a778fac00/README.md","note":"libdcp src/verify.cc at 891facc8 L1898-1908, L536-556; ClairMeta README.rst at b3b66a02 L104-126"},{"url":"https://github.com/Netflix/photon/blob/d5fe1494adc83000ef744d5c01bd714a778fac00/src/main/java/com/netflix/imflibrary/validation/IMFApp2E2021ConstraintsValidator.java","note":"libdcp src/verify.cc at 891facc8 L1898-1908, L536-556; ClairMeta README.rst at b3b66a02 L104-126"}]},"tags":[],"type":"article","links":[],"title":"At the master-to-package handoff (IMF or DCP), what do the open validators actually check on structure, hashes, picture and sound, and what stays unchecked?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"'Verified' means different things across open DCP validators: libdcp checks asset hashes only when the option is on and the file is under a configurable size limit, and ClairMeta check profiles can bypass the PKL hash test and downgrade checks to warnings. 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