{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:4P4IOVGM2R464GYORZW3VZ6GQK","short_pith_number":"pith:4P4IOVGM","canonical_record":{"source":{"id":"2203.14072","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-03-26T13:03:42Z","cross_cats_sorted":[],"title_canon_sha256":"1d3bc8338c6001488e7d43e6ef2e5b563e8470829636e12387a334b5e4276c04","abstract_canon_sha256":"ace6afd30e296e802eed102605f768c5b47671405b25c67f5278beede0dc76fc"},"schema_version":"1.0"},"canonical_sha256":"e3f88754ccd479ee1b0e8e6dbae7c6829835a953d1995db8bf12650a65947362","source":{"kind":"arxiv","id":"2203.14072","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.14072","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"arxiv_version","alias_value":"2203.14072v2","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.14072","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"pith_short_12","alias_value":"4P4IOVGM2R46","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"pith_short_16","alias_value":"4P4IOVGM2R464GYO","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"pith_short_8","alias_value":"4P4IOVGM","created_at":"2026-07-05T04:11:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:4P4IOVGM2R464GYORZW3VZ6GQK","target":"record","payload":{"canonical_record":{"source":{"id":"2203.14072","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-03-26T13:03:42Z","cross_cats_sorted":[],"title_canon_sha256":"1d3bc8338c6001488e7d43e6ef2e5b563e8470829636e12387a334b5e4276c04","abstract_canon_sha256":"ace6afd30e296e802eed102605f768c5b47671405b25c67f5278beede0dc76fc"},"schema_version":"1.0"},"canonical_sha256":"e3f88754ccd479ee1b0e8e6dbae7c6829835a953d1995db8bf12650a65947362","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:11:31.287732Z","signature_b64":"wfgymyRjpkeJO1H7w5/+Cl29FvA1ZewjHPHVImay4hsRN3v97isEdQ/g3tYofFezAKbD7suS9/f9Ucl5o708DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3f88754ccd479ee1b0e8e6dbae7c6829835a953d1995db8bf12650a65947362","last_reissued_at":"2026-07-05T04:11:31.287238Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:11:31.287238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.14072","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":"2026-07-05T04:11:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eZrcqQ1jNvFL/w3umMxa/SBqRR6wW3jS+X2lktKlAO7Fwvxnbun9L2hrEHpm2r8C5EcIKkHDBW8FVkQDsPZXAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T03:20:05.507986Z"},"content_sha256":"21d2dd03efe7638f788ef26d6358a97dcba8426797a8769cbee2879d342f7ec2","schema_version":"1.0","event_id":"sha256:21d2dd03efe7638f788ef26d6358a97dcba8426797a8769cbee2879d342f7ec2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:4P4IOVGM2R464GYORZW3VZ6GQK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Learning to Answer Questions in Dynamic Audio-Visual Scenarios","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chenliang Xu, Di Hu, Guangyao Li, Ji-Rong Wen, Yake Wei, Yapeng Tian","submitted_at":"2022-03-26T13:03:42Z","abstract_excerpt":"In this paper, we focus on the Audio-Visual Question Answering (AVQA) task, which aims to answer questions regarding different visual objects, sounds, and their associations in videos. The problem requires comprehensive multimodal understanding and spatio-temporal reasoning over audio-visual scenes. To benchmark this task and facilitate our study, we introduce a large-scale MUSIC-AVQA dataset, which contains more than 45K question-answer pairs covering 33 different question templates spanning over different modalities and question types. We develop several baselines and introduce a spatio-temp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.14072","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/2203.14072/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":"2026-07-05T04:11:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YYdA9U4l6w0neV25r/qv/wOqAL7ERteU/qFO3l7c8f1DBe5nw/ixbG8WUsCmx/VyWq1Jbs/++ccCuha2xtliBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T03:20:05.508536Z"},"content_sha256":"5c1c49667bc89f936225cd7e8111f4616f48756f1f33591d70297b134042f160","schema_version":"1.0","event_id":"sha256:5c1c49667bc89f936225cd7e8111f4616f48756f1f33591d70297b134042f160"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4P4IOVGM2R464GYORZW3VZ6GQK/bundle.json","state_url":"https://pith.science/pith/4P4IOVGM2R464GYORZW3VZ6GQK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4P4IOVGM2R464GYORZW3VZ6GQK/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":"2026-08-05T03:20:05Z","links":{"resolver":"https://pith.science/pith/4P4IOVGM2R464GYORZW3VZ6GQK","bundle":"https://pith.science/pith/4P4IOVGM2R464GYORZW3VZ6GQK/bundle.json","state":"https://pith.science/pith/4P4IOVGM2R464GYORZW3VZ6GQK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4P4IOVGM2R464GYORZW3VZ6GQK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:4P4IOVGM2R464GYORZW3VZ6GQK","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":"ace6afd30e296e802eed102605f768c5b47671405b25c67f5278beede0dc76fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-03-26T13:03:42Z","title_canon_sha256":"1d3bc8338c6001488e7d43e6ef2e5b563e8470829636e12387a334b5e4276c04"},"schema_version":"1.0","source":{"id":"2203.14072","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.14072","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"arxiv_version","alias_value":"2203.14072v2","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.14072","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"pith_short_12","alias_value":"4P4IOVGM2R46","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"pith_short_16","alias_value":"4P4IOVGM2R464GYO","created_at":"2026-07-05T04:11:31Z"},{"alias_kind":"pith_short_8","alias_value":"4P4IOVGM","created_at":"2026-07-05T04:11:31Z"}],"graph_snapshots":[{"event_id":"sha256:5c1c49667bc89f936225cd7e8111f4616f48756f1f33591d70297b134042f160","target":"graph","created_at":"2026-07-05T04:11:31Z","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/2203.14072/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we focus on the Audio-Visual Question Answering (AVQA) task, which aims to answer questions regarding different visual objects, sounds, and their associations in videos. The problem requires comprehensive multimodal understanding and spatio-temporal reasoning over audio-visual scenes. To benchmark this task and facilitate our study, we introduce a large-scale MUSIC-AVQA dataset, which contains more than 45K question-answer pairs covering 33 different question templates spanning over different modalities and question types. We develop several baselines and introduce a spatio-temp","authors_text":"Chenliang Xu, Di Hu, Guangyao Li, Ji-Rong Wen, Yake Wei, Yapeng Tian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-03-26T13:03:42Z","title":"Learning to Answer Questions in Dynamic Audio-Visual Scenarios"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.14072","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":"sha256:21d2dd03efe7638f788ef26d6358a97dcba8426797a8769cbee2879d342f7ec2","target":"record","created_at":"2026-07-05T04:11:31Z","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":"ace6afd30e296e802eed102605f768c5b47671405b25c67f5278beede0dc76fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-03-26T13:03:42Z","title_canon_sha256":"1d3bc8338c6001488e7d43e6ef2e5b563e8470829636e12387a334b5e4276c04"},"schema_version":"1.0","source":{"id":"2203.14072","kind":"arxiv","version":2}},"canonical_sha256":"e3f88754ccd479ee1b0e8e6dbae7c6829835a953d1995db8bf12650a65947362","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3f88754ccd479ee1b0e8e6dbae7c6829835a953d1995db8bf12650a65947362","first_computed_at":"2026-07-05T04:11:31.287238Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:11:31.287238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wfgymyRjpkeJO1H7w5/+Cl29FvA1ZewjHPHVImay4hsRN3v97isEdQ/g3tYofFezAKbD7suS9/f9Ucl5o708DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:11:31.287732Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.14072","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21d2dd03efe7638f788ef26d6358a97dcba8426797a8769cbee2879d342f7ec2","sha256:5c1c49667bc89f936225cd7e8111f4616f48756f1f33591d70297b134042f160"],"state_sha256":"4923566ce45f845492ad42ffb0e7112e324719d96c4a37397283884cef051409"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vxxvzMqAkOyuqXBr/3djGWAN4nyEI4VlYz7iJG/pJDh5zFAryQgQVC0Kly2NlZsaq/jgwxCWJUqxL6sEXrwDCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T03:20:05.512703Z","bundle_sha256":"b1d0c9ee1aa5313f8a7ab52fc8171a42b9dfa3cea53a7e9ba2793caa834baeb9"}}