{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:PSNJWWSLS5Z56RBXMK5C5DN5JZ","short_pith_number":"pith:PSNJWWSL","canonical_record":{"source":{"id":"2503.00162","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-02-28T20:17:48Z","cross_cats_sorted":["cs.AI","cs.CL","cs.MA"],"title_canon_sha256":"d85d37db5cc70be657f689a956a3d51727b8ac57f5c46c838b732c758576305d","abstract_canon_sha256":"97136c9765d702118b4d24044b1b81fcf30d7145298fd0dd2820fb91538468b7"},"schema_version":"1.0"},"canonical_sha256":"7c9a9b5a4b9773df443762ba2e8dbd4e5e27580e2f33ddd2d91f34b25f056456","source":{"kind":"arxiv","id":"2503.00162","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.00162","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"2503.00162v1","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.00162","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"PSNJWWSLS5Z5","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"pith_short_16","alias_value":"PSNJWWSLS5Z56RBX","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"pith_short_8","alias_value":"PSNJWWSL","created_at":"2026-07-05T10:22:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:PSNJWWSLS5Z56RBXMK5C5DN5JZ","target":"record","payload":{"canonical_record":{"source":{"id":"2503.00162","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-02-28T20:17:48Z","cross_cats_sorted":["cs.AI","cs.CL","cs.MA"],"title_canon_sha256":"d85d37db5cc70be657f689a956a3d51727b8ac57f5c46c838b732c758576305d","abstract_canon_sha256":"97136c9765d702118b4d24044b1b81fcf30d7145298fd0dd2820fb91538468b7"},"schema_version":"1.0"},"canonical_sha256":"7c9a9b5a4b9773df443762ba2e8dbd4e5e27580e2f33ddd2d91f34b25f056456","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:22:18.311958Z","signature_b64":"m1P60tpLtZ5Vv2L5SoBZpZolEcQUEoVnX84wEslHtDindaNgYeBYIoylK9yfmybMTENt9SRPbe1nhUYBH05uAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c9a9b5a4b9773df443762ba2e8dbd4e5e27580e2f33ddd2d91f34b25f056456","last_reissued_at":"2026-07-05T10:22:18.311331Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:22:18.311331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.00162","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":"2026-07-05T10:22:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gf+iMXcjD78fjVjywvRVMaxWvRiwhQLuauM6e7ANaKGTW62UKYprJjDwnbjWocclMNU6IC5Mm1svlPIjkvCHAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T12:25:43.957799Z"},"content_sha256":"6431ab83f2389bd0d59920d16c5feb24d7a3fbe49c5c4e8b055606323d32abe2","schema_version":"1.0","event_id":"sha256:6431ab83f2389bd0d59920d16c5feb24d7a3fbe49c5c4e8b055606323d32abe2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:PSNJWWSLS5Z56RBXMK5C5DN5JZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PreMind: Multi-Agent Video Understanding for Advanced Indexing of Presentation-style Videos","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cs.AI","cs.CL","cs.MA"],"primary_cat":"cs.CV","authors_text":"Bingqing Wang, Jun Araki, Kangda Wei, Lukas Lange, Ruihong Huang, Zhe Feng, Zhengyu Zhou","submitted_at":"2025-02-28T20:17:48Z","abstract_excerpt":"In recent years, online lecture videos have become an increasingly popular resource for acquiring new knowledge. Systems capable of effectively understanding/indexing lecture videos are thus highly desirable, enabling downstream tasks like question answering to help users efficiently locate specific information within videos. This work proposes PreMind, a novel multi-agent multimodal framework that leverages various large models for advanced understanding/indexing of presentation-style videos. PreMind first segments videos into slide-presentation segments using a Vision-Language Model (VLM) to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.00162","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/2503.00162/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":"2026-07-05T10:22:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7w6UaTVnJun36y6YII8TXkJLsZbJcKp8SL1GDaIqQFNB68FhBgDNHctGjGdZtAQJtnQ30UZXj0SIyRTOgnqrAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T12:25:43.958183Z"},"content_sha256":"33e15f2769b0fe31cfb1506038c1d490daf5d1743e87d52c2a4f49216b4bf10e","schema_version":"1.0","event_id":"sha256:33e15f2769b0fe31cfb1506038c1d490daf5d1743e87d52c2a4f49216b4bf10e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PSNJWWSLS5Z56RBXMK5C5DN5JZ/bundle.json","state_url":"https://pith.science/pith/PSNJWWSLS5Z56RBXMK5C5DN5JZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PSNJWWSLS5Z56RBXMK5C5DN5JZ/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":"2026-07-06T12:25:43Z","links":{"resolver":"https://pith.science/pith/PSNJWWSLS5Z56RBXMK5C5DN5JZ","bundle":"https://pith.science/pith/PSNJWWSLS5Z56RBXMK5C5DN5JZ/bundle.json","state":"https://pith.science/pith/PSNJWWSLS5Z56RBXMK5C5DN5JZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PSNJWWSLS5Z56RBXMK5C5DN5JZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PSNJWWSLS5Z56RBXMK5C5DN5JZ","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":"97136c9765d702118b4d24044b1b81fcf30d7145298fd0dd2820fb91538468b7","cross_cats_sorted":["cs.AI","cs.CL","cs.MA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-02-28T20:17:48Z","title_canon_sha256":"d85d37db5cc70be657f689a956a3d51727b8ac57f5c46c838b732c758576305d"},"schema_version":"1.0","source":{"id":"2503.00162","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.00162","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"2503.00162v1","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.00162","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"PSNJWWSLS5Z5","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"pith_short_16","alias_value":"PSNJWWSLS5Z56RBX","created_at":"2026-07-05T10:22:18Z"},{"alias_kind":"pith_short_8","alias_value":"PSNJWWSL","created_at":"2026-07-05T10:22:18Z"}],"graph_snapshots":[{"event_id":"sha256:33e15f2769b0fe31cfb1506038c1d490daf5d1743e87d52c2a4f49216b4bf10e","target":"graph","created_at":"2026-07-05T10:22:18Z","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/2503.00162/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In recent years, online lecture videos have become an increasingly popular resource for acquiring new knowledge. Systems capable of effectively understanding/indexing lecture videos are thus highly desirable, enabling downstream tasks like question answering to help users efficiently locate specific information within videos. This work proposes PreMind, a novel multi-agent multimodal framework that leverages various large models for advanced understanding/indexing of presentation-style videos. PreMind first segments videos into slide-presentation segments using a Vision-Language Model (VLM) to","authors_text":"Bingqing Wang, Jun Araki, Kangda Wei, Lukas Lange, Ruihong Huang, Zhe Feng, Zhengyu Zhou","cross_cats":["cs.AI","cs.CL","cs.MA"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-02-28T20:17:48Z","title":"PreMind: Multi-Agent Video Understanding for Advanced Indexing of Presentation-style Videos"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.00162","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":"sha256:6431ab83f2389bd0d59920d16c5feb24d7a3fbe49c5c4e8b055606323d32abe2","target":"record","created_at":"2026-07-05T10:22:18Z","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":"97136c9765d702118b4d24044b1b81fcf30d7145298fd0dd2820fb91538468b7","cross_cats_sorted":["cs.AI","cs.CL","cs.MA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-02-28T20:17:48Z","title_canon_sha256":"d85d37db5cc70be657f689a956a3d51727b8ac57f5c46c838b732c758576305d"},"schema_version":"1.0","source":{"id":"2503.00162","kind":"arxiv","version":1}},"canonical_sha256":"7c9a9b5a4b9773df443762ba2e8dbd4e5e27580e2f33ddd2d91f34b25f056456","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c9a9b5a4b9773df443762ba2e8dbd4e5e27580e2f33ddd2d91f34b25f056456","first_computed_at":"2026-07-05T10:22:18.311331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:22:18.311331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m1P60tpLtZ5Vv2L5SoBZpZolEcQUEoVnX84wEslHtDindaNgYeBYIoylK9yfmybMTENt9SRPbe1nhUYBH05uAg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:22:18.311958Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.00162","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6431ab83f2389bd0d59920d16c5feb24d7a3fbe49c5c4e8b055606323d32abe2","sha256:33e15f2769b0fe31cfb1506038c1d490daf5d1743e87d52c2a4f49216b4bf10e"],"state_sha256":"683c896951b6147a93213e31ec1e92639c591bd142312ab79ea67aa83364feb0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TAClMsjFZpqrWnX+w4onJt+mlufUCR+Euy43hh5NjLETNnwLYOSKIPS1sD3//BcnLwxw2MhqGWkVMQa0vvylAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T12:25:43.960347Z","bundle_sha256":"c8ad4373082bfe0a7cfc0afa0ba365f224a942ed4f544935797899ea6558bd1f"}}