{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:RM7HKTKR7AQIGVOBEYM7DMNCNE","short_pith_number":"pith:RM7HKTKR","canonical_record":{"source":{"id":"2401.11485","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-21T13:16:33Z","cross_cats_sorted":["cs.GR","eess.IV"],"title_canon_sha256":"d67d2a2c2c527fb4bd6b7a50d7f3966c41b88c69936d2392ff38618207538af3","abstract_canon_sha256":"a150939971aeee43e5e83f00589465b99e3ccc26b2d24db2f27a41d8a39eb40c"},"schema_version":"1.0"},"canonical_sha256":"8b3e754d51f8208355c12619f1b1a2690c02a3451145af93a38c8ea38076c06f","source":{"kind":"arxiv","id":"2401.11485","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.11485","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"arxiv_version","alias_value":"2401.11485v2","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.11485","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"pith_short_12","alias_value":"RM7HKTKR7AQI","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"pith_short_16","alias_value":"RM7HKTKR7AQIGVOB","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"pith_short_8","alias_value":"RM7HKTKR","created_at":"2026-07-05T08:39:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:RM7HKTKR7AQIGVOBEYM7DMNCNE","target":"record","payload":{"canonical_record":{"source":{"id":"2401.11485","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-21T13:16:33Z","cross_cats_sorted":["cs.GR","eess.IV"],"title_canon_sha256":"d67d2a2c2c527fb4bd6b7a50d7f3966c41b88c69936d2392ff38618207538af3","abstract_canon_sha256":"a150939971aeee43e5e83f00589465b99e3ccc26b2d24db2f27a41d8a39eb40c"},"schema_version":"1.0"},"canonical_sha256":"8b3e754d51f8208355c12619f1b1a2690c02a3451145af93a38c8ea38076c06f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:39:30.460087Z","signature_b64":"7RCWNmuo3/Ox6Mjtym9uGyhaaeE204KZn3mEtm8XchhEvq67tWc5/TO6ONzLyaqRVmJpSSGCznVed1yHTWFXCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b3e754d51f8208355c12619f1b1a2690c02a3451145af93a38c8ea38076c06f","last_reissued_at":"2026-07-05T08:39:30.459630Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:39:30.459630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.11485","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:39:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tyoQvVn5mvKQ/46zVcD1QCQnjovx/MVGT8Xx/7xmZGXRceCpr+CVO35Koaxyg1kKrMbmZBqxDsvJc03stnkRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:43:12.269864Z"},"content_sha256":"af2911ef3aa9282dc44287937362dfa4ab2b88479d858e5f183ebdbf34e5b117","schema_version":"1.0","event_id":"sha256:af2911ef3aa9282dc44287937362dfa4ab2b88479d858e5f183ebdbf34e5b117"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:RM7HKTKR7AQIGVOBEYM7DMNCNE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ColorVideoVDP: A visual difference predictor for image, video and display distortions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.GR","eess.IV"],"primary_cat":"cs.CV","authors_text":"Alexandre Chapiro, Maliha Ashraf, Param Hanji, Rafal K. Mantiuk, Yuta Asano","submitted_at":"2024-01-21T13:16:33Z","abstract_excerpt":"ColorVideoVDP is a video and image quality metric that models spatial and temporal aspects of vision, for both luminance and color. The metric is built on novel psychophysical models of chromatic spatiotemporal contrast sensitivity and cross-channel contrast masking. It accounts for the viewing conditions, geometric, and photometric characteristics of the display. It was trained to predict common video streaming distortions (e.g. video compression, rescaling, and transmission errors), and also 8 new distortion types related to AR/VR displays (e.g. light source and waveguide non-uniformities). "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.11485","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2401.11485/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:39:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XaDB3Oyk5N5jWE3SpVjmbEosX/YzWiVaPpPMc83KQXRmR7c45B6li7IkY5QzMFxONmRWRmx81VV/gikS7k2kBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:43:12.270233Z"},"content_sha256":"9da92d7a11dafe45b0f86ef5696c7f3feb6346838305cd6b6ac0c495ea67b6b8","schema_version":"1.0","event_id":"sha256:9da92d7a11dafe45b0f86ef5696c7f3feb6346838305cd6b6ac0c495ea67b6b8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RM7HKTKR7AQIGVOBEYM7DMNCNE/bundle.json","state_url":"https://pith.science/pith/RM7HKTKR7AQIGVOBEYM7DMNCNE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RM7HKTKR7AQIGVOBEYM7DMNCNE/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T15:43:12Z","links":{"resolver":"https://pith.science/pith/RM7HKTKR7AQIGVOBEYM7DMNCNE","bundle":"https://pith.science/pith/RM7HKTKR7AQIGVOBEYM7DMNCNE/bundle.json","state":"https://pith.science/pith/RM7HKTKR7AQIGVOBEYM7DMNCNE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RM7HKTKR7AQIGVOBEYM7DMNCNE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:RM7HKTKR7AQIGVOBEYM7DMNCNE","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"a150939971aeee43e5e83f00589465b99e3ccc26b2d24db2f27a41d8a39eb40c","cross_cats_sorted":["cs.GR","eess.IV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-21T13:16:33Z","title_canon_sha256":"d67d2a2c2c527fb4bd6b7a50d7f3966c41b88c69936d2392ff38618207538af3"},"schema_version":"1.0","source":{"id":"2401.11485","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.11485","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"arxiv_version","alias_value":"2401.11485v2","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.11485","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"pith_short_12","alias_value":"RM7HKTKR7AQI","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"pith_short_16","alias_value":"RM7HKTKR7AQIGVOB","created_at":"2026-07-05T08:39:30Z"},{"alias_kind":"pith_short_8","alias_value":"RM7HKTKR","created_at":"2026-07-05T08:39:30Z"}],"graph_snapshots":[{"event_id":"sha256:9da92d7a11dafe45b0f86ef5696c7f3feb6346838305cd6b6ac0c495ea67b6b8","target":"graph","created_at":"2026-07-05T08:39:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2401.11485/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"ColorVideoVDP is a video and image quality metric that models spatial and temporal aspects of vision, for both luminance and color. The metric is built on novel psychophysical models of chromatic spatiotemporal contrast sensitivity and cross-channel contrast masking. It accounts for the viewing conditions, geometric, and photometric characteristics of the display. It was trained to predict common video streaming distortions (e.g. video compression, rescaling, and transmission errors), and also 8 new distortion types related to AR/VR displays (e.g. light source and waveguide non-uniformities). ","authors_text":"Alexandre Chapiro, Maliha Ashraf, Param Hanji, Rafal K. Mantiuk, Yuta Asano","cross_cats":["cs.GR","eess.IV"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-21T13:16:33Z","title":"ColorVideoVDP: A visual difference predictor for image, video and display distortions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.11485","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:af2911ef3aa9282dc44287937362dfa4ab2b88479d858e5f183ebdbf34e5b117","target":"record","created_at":"2026-07-05T08:39:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"a150939971aeee43e5e83f00589465b99e3ccc26b2d24db2f27a41d8a39eb40c","cross_cats_sorted":["cs.GR","eess.IV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-21T13:16:33Z","title_canon_sha256":"d67d2a2c2c527fb4bd6b7a50d7f3966c41b88c69936d2392ff38618207538af3"},"schema_version":"1.0","source":{"id":"2401.11485","kind":"arxiv","version":2}},"canonical_sha256":"8b3e754d51f8208355c12619f1b1a2690c02a3451145af93a38c8ea38076c06f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b3e754d51f8208355c12619f1b1a2690c02a3451145af93a38c8ea38076c06f","first_computed_at":"2026-07-05T08:39:30.459630Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:39:30.459630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7RCWNmuo3/Ox6Mjtym9uGyhaaeE204KZn3mEtm8XchhEvq67tWc5/TO6ONzLyaqRVmJpSSGCznVed1yHTWFXCA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:39:30.460087Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.11485","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af2911ef3aa9282dc44287937362dfa4ab2b88479d858e5f183ebdbf34e5b117","sha256:9da92d7a11dafe45b0f86ef5696c7f3feb6346838305cd6b6ac0c495ea67b6b8"],"state_sha256":"5bf221b8d923e92218df0593d784b22959e9d887f68af0d4937a66dbc8cedd24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4iTyliKA7Dwz7owlD7hUU2u4Zxn0jBsk9ORqo4NVqXK2mdkG+0J1UPPjlBPSokUxKch/0tEHPE77kCK188TlDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:43:12.274152Z","bundle_sha256":"4a7e9acc04757f478771edf90a2717ec6ce7b50eaf1a212fdd76564108ae3e76"}}