{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:DIPYGOGQAPZOFRL4IH7ZJMKWBD","short_pith_number":"pith:DIPYGOGQ","canonical_record":{"source":{"id":"2404.09029","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2024-04-13T15:37:57Z","cross_cats_sorted":["cs.IT","cs.LG","eess.IV","math.IT"],"title_canon_sha256":"696d948a405ad86ed1ec3968a2047946d1c43541bbd61be45a3780129ea1f262","abstract_canon_sha256":"8d51fd29dd22abb6655d3b0f55bc337cf8508491b6f1ade2d6cb04d84be4ffcd"},"schema_version":"1.0"},"canonical_sha256":"1a1f8338d003f2e2c57c41ff94b15608e83fecf55a2b500108455f1d8fbf2f04","source":{"kind":"arxiv","id":"2404.09029","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.09029","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"2404.09029v1","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.09029","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"DIPYGOGQAPZO","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"pith_short_16","alias_value":"DIPYGOGQAPZOFRL4","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"pith_short_8","alias_value":"DIPYGOGQ","created_at":"2026-07-05T08:07:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:DIPYGOGQAPZOFRL4IH7ZJMKWBD","target":"record","payload":{"canonical_record":{"source":{"id":"2404.09029","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2024-04-13T15:37:57Z","cross_cats_sorted":["cs.IT","cs.LG","eess.IV","math.IT"],"title_canon_sha256":"696d948a405ad86ed1ec3968a2047946d1c43541bbd61be45a3780129ea1f262","abstract_canon_sha256":"8d51fd29dd22abb6655d3b0f55bc337cf8508491b6f1ade2d6cb04d84be4ffcd"},"schema_version":"1.0"},"canonical_sha256":"1a1f8338d003f2e2c57c41ff94b15608e83fecf55a2b500108455f1d8fbf2f04","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:07:44.035652Z","signature_b64":"nD8xGf/gny8IrhWPkXquaJQCNGLLT0QAP4WSvD/Eh9q1ouJ+5CY3bOWUKRqQmHJ/kWaWwxsORLIaNAH0dTftAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a1f8338d003f2e2c57c41ff94b15608e83fecf55a2b500108455f1d8fbf2f04","last_reissued_at":"2026-07-05T08:07:44.035186Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:07:44.035186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.09029","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RXbAvBaCm8/3/M0VN8LWb4IE12VL/OYnCSKjtZafQHyeJztSyI72xqlhntkzLjW40I9GVKVTqDo+zy4ABBjQCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T01:37:36.820373Z"},"content_sha256":"9af11b3dbb9790f3ecfe9876ade50d262a5cfe1409708e373cc54f48ec9acffd","schema_version":"1.0","event_id":"sha256:9af11b3dbb9790f3ecfe9876ade50d262a5cfe1409708e373cc54f48ec9acffd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:DIPYGOGQAPZOFRL4IH7ZJMKWBD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Parametric Rate-Distortion Model for Video Transcoding","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","cs.LG","eess.IV","math.IT"],"primary_cat":"cs.MM","authors_text":"Maedeh Jamali, Nader Karimi, Shadrokh Samavi, Shahram Shirani","submitted_at":"2024-04-13T15:37:57Z","abstract_excerpt":"Over the past two decades, the surge in video streaming applications has been fueled by the increasing accessibility of the internet and the growing demand for network video. As users with varying internet speeds and devices seek high-quality video, transcoding becomes essential for service providers. In this paper, we introduce a parametric rate-distortion (R-D) transcoding model. Our model excels at predicting transcoding distortion at various rates without the need for encoding the video. This model serves as a versatile tool that can be used to achieve visual quality improvement (in terms "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.09029","kind":"arxiv","version":1},"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/2404.09029/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":"2026-07-05T08:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"69vzIbHwPPFWiS+r1KRht5tyEg8unu9xp3Ru/KyEVEa7h2fnBO9zNF/C+ic5ykq7Ux1EDL3kT2z6Quk+8hffCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T01:37:36.820956Z"},"content_sha256":"ef3f50b42a216fe6f70894397e6765297d79a91117d3e92377b4b8cbf8256e1e","schema_version":"1.0","event_id":"sha256:ef3f50b42a216fe6f70894397e6765297d79a91117d3e92377b4b8cbf8256e1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DIPYGOGQAPZOFRL4IH7ZJMKWBD/bundle.json","state_url":"https://pith.science/pith/DIPYGOGQAPZOFRL4IH7ZJMKWBD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DIPYGOGQAPZOFRL4IH7ZJMKWBD/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":"2026-08-13T01:37:36Z","links":{"resolver":"https://pith.science/pith/DIPYGOGQAPZOFRL4IH7ZJMKWBD","bundle":"https://pith.science/pith/DIPYGOGQAPZOFRL4IH7ZJMKWBD/bundle.json","state":"https://pith.science/pith/DIPYGOGQAPZOFRL4IH7ZJMKWBD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DIPYGOGQAPZOFRL4IH7ZJMKWBD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:DIPYGOGQAPZOFRL4IH7ZJMKWBD","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":"8d51fd29dd22abb6655d3b0f55bc337cf8508491b6f1ade2d6cb04d84be4ffcd","cross_cats_sorted":["cs.IT","cs.LG","eess.IV","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2024-04-13T15:37:57Z","title_canon_sha256":"696d948a405ad86ed1ec3968a2047946d1c43541bbd61be45a3780129ea1f262"},"schema_version":"1.0","source":{"id":"2404.09029","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.09029","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"2404.09029v1","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.09029","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"DIPYGOGQAPZO","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"pith_short_16","alias_value":"DIPYGOGQAPZOFRL4","created_at":"2026-07-05T08:07:44Z"},{"alias_kind":"pith_short_8","alias_value":"DIPYGOGQ","created_at":"2026-07-05T08:07:44Z"}],"graph_snapshots":[{"event_id":"sha256:ef3f50b42a216fe6f70894397e6765297d79a91117d3e92377b4b8cbf8256e1e","target":"graph","created_at":"2026-07-05T08:07:44Z","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/2404.09029/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Over the past two decades, the surge in video streaming applications has been fueled by the increasing accessibility of the internet and the growing demand for network video. As users with varying internet speeds and devices seek high-quality video, transcoding becomes essential for service providers. In this paper, we introduce a parametric rate-distortion (R-D) transcoding model. Our model excels at predicting transcoding distortion at various rates without the need for encoding the video. This model serves as a versatile tool that can be used to achieve visual quality improvement (in terms ","authors_text":"Maedeh Jamali, Nader Karimi, Shadrokh Samavi, Shahram Shirani","cross_cats":["cs.IT","cs.LG","eess.IV","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2024-04-13T15:37:57Z","title":"A Parametric Rate-Distortion Model for Video Transcoding"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.09029","kind":"arxiv","version":1},"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":"sha256:9af11b3dbb9790f3ecfe9876ade50d262a5cfe1409708e373cc54f48ec9acffd","target":"record","created_at":"2026-07-05T08:07:44Z","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":"8d51fd29dd22abb6655d3b0f55bc337cf8508491b6f1ade2d6cb04d84be4ffcd","cross_cats_sorted":["cs.IT","cs.LG","eess.IV","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2024-04-13T15:37:57Z","title_canon_sha256":"696d948a405ad86ed1ec3968a2047946d1c43541bbd61be45a3780129ea1f262"},"schema_version":"1.0","source":{"id":"2404.09029","kind":"arxiv","version":1}},"canonical_sha256":"1a1f8338d003f2e2c57c41ff94b15608e83fecf55a2b500108455f1d8fbf2f04","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a1f8338d003f2e2c57c41ff94b15608e83fecf55a2b500108455f1d8fbf2f04","first_computed_at":"2026-07-05T08:07:44.035186Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:07:44.035186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nD8xGf/gny8IrhWPkXquaJQCNGLLT0QAP4WSvD/Eh9q1ouJ+5CY3bOWUKRqQmHJ/kWaWwxsORLIaNAH0dTftAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:07:44.035652Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.09029","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9af11b3dbb9790f3ecfe9876ade50d262a5cfe1409708e373cc54f48ec9acffd","sha256:ef3f50b42a216fe6f70894397e6765297d79a91117d3e92377b4b8cbf8256e1e"],"state_sha256":"b128ff948cccc84ee7d131574045e8963a48e2157922bff947aaf8f94875d1a3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q42UGG0Zu5w46yza+QGXwyTqMlqD9QkCL8ChsAg63HhE44qKrBqaiahtLg94B/6OZCESAenmRGtawLJ+K4e6Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T01:37:36.826129Z","bundle_sha256":"27de8f0c4d039b058b78bae7d772962119f574ef27b565219c7af2756b3ba9a6"}}