{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4EYXK6PHCIHY2KN2BGUTLKQIWZ","short_pith_number":"pith:4EYXK6PH","canonical_record":{"source":{"id":"2506.21903","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-06-27T04:43:05Z","cross_cats_sorted":[],"title_canon_sha256":"bfaa11d4cb4d4881a60113bbe17ac4bbdce2f19974bdef75e0857c22922dc2c7","abstract_canon_sha256":"d111353283b62dcff0f03617f0a57b5a2e2dbbe811adcf16d86b320a9551d6c6"},"schema_version":"1.0"},"canonical_sha256":"e1317579e7120f8d29ba09a935aa08b657f7f75045dacd7b0f0d2a53e54681c6","source":{"kind":"arxiv","id":"2506.21903","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.21903","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"arxiv_version","alias_value":"2506.21903v2","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.21903","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"pith_short_12","alias_value":"4EYXK6PHCIHY","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"pith_short_16","alias_value":"4EYXK6PHCIHY2KN2","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"pith_short_8","alias_value":"4EYXK6PH","created_at":"2026-07-05T11:54:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4EYXK6PHCIHY2KN2BGUTLKQIWZ","target":"record","payload":{"canonical_record":{"source":{"id":"2506.21903","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-06-27T04:43:05Z","cross_cats_sorted":[],"title_canon_sha256":"bfaa11d4cb4d4881a60113bbe17ac4bbdce2f19974bdef75e0857c22922dc2c7","abstract_canon_sha256":"d111353283b62dcff0f03617f0a57b5a2e2dbbe811adcf16d86b320a9551d6c6"},"schema_version":"1.0"},"canonical_sha256":"e1317579e7120f8d29ba09a935aa08b657f7f75045dacd7b0f0d2a53e54681c6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:54:48.747799Z","signature_b64":"z7mTOmhBAeeJqHr64Jr8BszAw+Q372pGTF6R3rviUeaeruKZd2rPeNaajFfTWbo6naUp9xyiyCDwwAC8jDw6DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1317579e7120f8d29ba09a935aa08b657f7f75045dacd7b0f0d2a53e54681c6","last_reissued_at":"2026-07-05T11:54:48.746555Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:54:48.746555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.21903","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":"2026-07-05T11:54:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XnBjyCcL8twYjI3OcY8dDAjesnt4iq84Era7xh9xhfoNz/MFZJm+QKiTGtu9rUq5luSrG/Ow38RtSHpoMSvACA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:53:07.318777Z"},"content_sha256":"4dc8c59576313136284fa70fa7fe7be7c428f91f06ba3d1b3f551069fcd96a6a","schema_version":"1.0","event_id":"sha256:4dc8c59576313136284fa70fa7fe7be7c428f91f06ba3d1b3f551069fcd96a6a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4EYXK6PHCIHY2KN2BGUTLKQIWZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Visual Content Detection in Educational Videos with Transfer Learning and Dataset Enrichment","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Dipayan Biswas, Jaspal Subhlok, Shishir Shah","submitted_at":"2025-06-27T04:43:05Z","abstract_excerpt":"Video is transforming education with online courses and recorded lectures supplementing and replacing classroom teaching. Recent research has focused on enhancing information retrieval for video lectures with advanced navigation, searchability, summarization, as well as question answering chatbots. Visual elements like tables, charts, and illustrations are central to comprehension, retention, and data presentation in lecture videos, yet their full potential for improving access to video content remains underutilized. A major factor is that accurate automatic detection of visual elements in a l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.21903","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/2506.21903/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":"2026-07-05T11:54:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XkMs/jONSW+8Yc68IpnxU0t/ZRpdQx+Z9CQTcMVp9GRrRaUN5l6ZimXHXOTg2Ex1g3gfWZyIXR8DTeRBKtrUDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:53:07.319253Z"},"content_sha256":"d29b57838a0ba4b4c50d1995d0e98fd4ee20e3e1493b579d0c73e74fd09c37cd","schema_version":"1.0","event_id":"sha256:d29b57838a0ba4b4c50d1995d0e98fd4ee20e3e1493b579d0c73e74fd09c37cd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4EYXK6PHCIHY2KN2BGUTLKQIWZ/bundle.json","state_url":"https://pith.science/pith/4EYXK6PHCIHY2KN2BGUTLKQIWZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4EYXK6PHCIHY2KN2BGUTLKQIWZ/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":"2026-08-04T08:53:07Z","links":{"resolver":"https://pith.science/pith/4EYXK6PHCIHY2KN2BGUTLKQIWZ","bundle":"https://pith.science/pith/4EYXK6PHCIHY2KN2BGUTLKQIWZ/bundle.json","state":"https://pith.science/pith/4EYXK6PHCIHY2KN2BGUTLKQIWZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4EYXK6PHCIHY2KN2BGUTLKQIWZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4EYXK6PHCIHY2KN2BGUTLKQIWZ","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":"d111353283b62dcff0f03617f0a57b5a2e2dbbe811adcf16d86b320a9551d6c6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-06-27T04:43:05Z","title_canon_sha256":"bfaa11d4cb4d4881a60113bbe17ac4bbdce2f19974bdef75e0857c22922dc2c7"},"schema_version":"1.0","source":{"id":"2506.21903","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.21903","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"arxiv_version","alias_value":"2506.21903v2","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.21903","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"pith_short_12","alias_value":"4EYXK6PHCIHY","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"pith_short_16","alias_value":"4EYXK6PHCIHY2KN2","created_at":"2026-07-05T11:54:48Z"},{"alias_kind":"pith_short_8","alias_value":"4EYXK6PH","created_at":"2026-07-05T11:54:48Z"}],"graph_snapshots":[{"event_id":"sha256:d29b57838a0ba4b4c50d1995d0e98fd4ee20e3e1493b579d0c73e74fd09c37cd","target":"graph","created_at":"2026-07-05T11:54:48Z","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/2506.21903/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Video is transforming education with online courses and recorded lectures supplementing and replacing classroom teaching. Recent research has focused on enhancing information retrieval for video lectures with advanced navigation, searchability, summarization, as well as question answering chatbots. Visual elements like tables, charts, and illustrations are central to comprehension, retention, and data presentation in lecture videos, yet their full potential for improving access to video content remains underutilized. A major factor is that accurate automatic detection of visual elements in a l","authors_text":"Dipayan Biswas, Jaspal Subhlok, Shishir Shah","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-06-27T04:43:05Z","title":"Visual Content Detection in Educational Videos with Transfer Learning and Dataset Enrichment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.21903","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":"sha256:4dc8c59576313136284fa70fa7fe7be7c428f91f06ba3d1b3f551069fcd96a6a","target":"record","created_at":"2026-07-05T11:54:48Z","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":"d111353283b62dcff0f03617f0a57b5a2e2dbbe811adcf16d86b320a9551d6c6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-06-27T04:43:05Z","title_canon_sha256":"bfaa11d4cb4d4881a60113bbe17ac4bbdce2f19974bdef75e0857c22922dc2c7"},"schema_version":"1.0","source":{"id":"2506.21903","kind":"arxiv","version":2}},"canonical_sha256":"e1317579e7120f8d29ba09a935aa08b657f7f75045dacd7b0f0d2a53e54681c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1317579e7120f8d29ba09a935aa08b657f7f75045dacd7b0f0d2a53e54681c6","first_computed_at":"2026-07-05T11:54:48.746555Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:54:48.746555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z7mTOmhBAeeJqHr64Jr8BszAw+Q372pGTF6R3rviUeaeruKZd2rPeNaajFfTWbo6naUp9xyiyCDwwAC8jDw6DA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:54:48.747799Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.21903","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4dc8c59576313136284fa70fa7fe7be7c428f91f06ba3d1b3f551069fcd96a6a","sha256:d29b57838a0ba4b4c50d1995d0e98fd4ee20e3e1493b579d0c73e74fd09c37cd"],"state_sha256":"83209d219216c8264cf11e3b3e1fb3fceae189e62ffad2e185b3db5f64e87c7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fXRhdKtGSNH5pZkX5QEyjb+lNyatuPhP1t/FpFUv0r1As+IiZzPewUrI8YMFSEztFZwDD7b0YHvBAXeGglqwBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T08:53:07.323444Z","bundle_sha256":"b3396eb990eb5de07b7587d4bfc9ca2ca7de8aebe27e569a214e99fd9c366d24"}}