{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:HU56BFCM3UWFCUWXZW4CMZZUYJ","short_pith_number":"pith:HU56BFCM","canonical_record":{"source":{"id":"2605.29402","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-05-28T05:53:34Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"0f1a75f0585309e9cb7320cf758cbf6b8efffc8fc12d07bc1f5bd0b39a68d3e8","abstract_canon_sha256":"605341b49b6c9beb1e62e57bb30ed73641b00a1effb0e2d447167c07ed834938"},"schema_version":"1.0"},"canonical_sha256":"3d3be0944cdd2c5152d7cdb8266734c276655285c7eb016aee3f1d388b3e063b","source":{"kind":"arxiv","id":"2605.29402","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.29402","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"arxiv_version","alias_value":"2605.29402v1","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29402","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"pith_short_12","alias_value":"HU56BFCM3UWF","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"pith_short_16","alias_value":"HU56BFCM3UWFCUWX","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"pith_short_8","alias_value":"HU56BFCM","created_at":"2026-05-29T01:05:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:HU56BFCM3UWFCUWXZW4CMZZUYJ","target":"record","payload":{"canonical_record":{"source":{"id":"2605.29402","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-05-28T05:53:34Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"0f1a75f0585309e9cb7320cf758cbf6b8efffc8fc12d07bc1f5bd0b39a68d3e8","abstract_canon_sha256":"605341b49b6c9beb1e62e57bb30ed73641b00a1effb0e2d447167c07ed834938"},"schema_version":"1.0"},"canonical_sha256":"3d3be0944cdd2c5152d7cdb8266734c276655285c7eb016aee3f1d388b3e063b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-29T01:05:37.188363Z","signature_b64":"UJi7njouKkQXsD4+QecgeUU3/LrV6aUaHyJVkjRq+l6+vllKXg40aydZftPbfzydHLpiVR7DvLZyRdkpua+cAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3d3be0944cdd2c5152d7cdb8266734c276655285c7eb016aee3f1d388b3e063b","last_reissued_at":"2026-05-29T01:05:37.187825Z","signature_status":"signed_v1","first_computed_at":"2026-05-29T01:05:37.187825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.29402","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":"2026-05-29T01:05:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C9vjcTZy2W0WJGEl/iZesKs1nWcXY5A5/o9VzOlUQSfy6jUdQdK91eZ6FqzttAKLZVgND8r/g3aDK442Ve47BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:45:45.081191Z"},"content_sha256":"18070bcbc507d06c6c70e6821f3dab316eeba1694d1044945e3237730eab9b29","schema_version":"1.0","event_id":"sha256:18070bcbc507d06c6c70e6821f3dab316eeba1694d1044945e3237730eab9b29"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:HU56BFCM3UWFCUWXZW4CMZZUYJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Semantic and Visual Evidence for Efficient Long-Video Reasoning: A Solution for the HD-EPIC VQA Challenge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CV","authors_text":"Hui Li, Liuxin Zhang, Wanjun Lv, Wei Jing, Yinsong Xu","submitted_at":"2026-05-28T05:53:34Z","abstract_excerpt":"Understanding long-form egocentric videos remains challenging for multimodal large language models (MLLMs) due to limited context length and insufficient grounding of fine-grained visual details. The recently proposed HD-EPIC benchmark highlights these limitations: even strong long-context models achieve relatively low performance across diverse video question answering tasks. In this paper, we propose a unified framework that decouples long-video reasoning into two complementary forms of evidence: semantic evidence and visual evidence. Semantic evidence captures global procedural structure th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29402","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/2605.29402/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":"2026-05-29T01:05:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QTE7vTNboII+Xk5NnDDZ723LiKhcXlum+olxyrroLe6G7TZ89n3Xr2l0HPqvABdn/hYaRWSH+3Ze6BPhNXDJAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:45:45.082024Z"},"content_sha256":"5ec793be1af3a107ce81240f2e3faef2a9a833cffa08bddec0c59eec7a6ffe85","schema_version":"1.0","event_id":"sha256:5ec793be1af3a107ce81240f2e3faef2a9a833cffa08bddec0c59eec7a6ffe85"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HU56BFCM3UWFCUWXZW4CMZZUYJ/bundle.json","state_url":"https://pith.science/pith/HU56BFCM3UWFCUWXZW4CMZZUYJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HU56BFCM3UWFCUWXZW4CMZZUYJ/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":"2026-06-01T00:45:45Z","links":{"resolver":"https://pith.science/pith/HU56BFCM3UWFCUWXZW4CMZZUYJ","bundle":"https://pith.science/pith/HU56BFCM3UWFCUWXZW4CMZZUYJ/bundle.json","state":"https://pith.science/pith/HU56BFCM3UWFCUWXZW4CMZZUYJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HU56BFCM3UWFCUWXZW4CMZZUYJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:HU56BFCM3UWFCUWXZW4CMZZUYJ","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":"605341b49b6c9beb1e62e57bb30ed73641b00a1effb0e2d447167c07ed834938","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-05-28T05:53:34Z","title_canon_sha256":"0f1a75f0585309e9cb7320cf758cbf6b8efffc8fc12d07bc1f5bd0b39a68d3e8"},"schema_version":"1.0","source":{"id":"2605.29402","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.29402","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"arxiv_version","alias_value":"2605.29402v1","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29402","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"pith_short_12","alias_value":"HU56BFCM3UWF","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"pith_short_16","alias_value":"HU56BFCM3UWFCUWX","created_at":"2026-05-29T01:05:37Z"},{"alias_kind":"pith_short_8","alias_value":"HU56BFCM","created_at":"2026-05-29T01:05:37Z"}],"graph_snapshots":[{"event_id":"sha256:5ec793be1af3a107ce81240f2e3faef2a9a833cffa08bddec0c59eec7a6ffe85","target":"graph","created_at":"2026-05-29T01:05:37Z","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/2605.29402/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Understanding long-form egocentric videos remains challenging for multimodal large language models (MLLMs) due to limited context length and insufficient grounding of fine-grained visual details. The recently proposed HD-EPIC benchmark highlights these limitations: even strong long-context models achieve relatively low performance across diverse video question answering tasks. In this paper, we propose a unified framework that decouples long-video reasoning into two complementary forms of evidence: semantic evidence and visual evidence. Semantic evidence captures global procedural structure th","authors_text":"Hui Li, Liuxin Zhang, Wanjun Lv, Wei Jing, Yinsong Xu","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-05-28T05:53:34Z","title":"Semantic and Visual Evidence for Efficient Long-Video Reasoning: A Solution for the HD-EPIC VQA Challenge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29402","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":"sha256:18070bcbc507d06c6c70e6821f3dab316eeba1694d1044945e3237730eab9b29","target":"record","created_at":"2026-05-29T01:05:37Z","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":"605341b49b6c9beb1e62e57bb30ed73641b00a1effb0e2d447167c07ed834938","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-05-28T05:53:34Z","title_canon_sha256":"0f1a75f0585309e9cb7320cf758cbf6b8efffc8fc12d07bc1f5bd0b39a68d3e8"},"schema_version":"1.0","source":{"id":"2605.29402","kind":"arxiv","version":1}},"canonical_sha256":"3d3be0944cdd2c5152d7cdb8266734c276655285c7eb016aee3f1d388b3e063b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3d3be0944cdd2c5152d7cdb8266734c276655285c7eb016aee3f1d388b3e063b","first_computed_at":"2026-05-29T01:05:37.187825Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-29T01:05:37.187825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UJi7njouKkQXsD4+QecgeUU3/LrV6aUaHyJVkjRq+l6+vllKXg40aydZftPbfzydHLpiVR7DvLZyRdkpua+cAQ==","signature_status":"signed_v1","signed_at":"2026-05-29T01:05:37.188363Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.29402","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18070bcbc507d06c6c70e6821f3dab316eeba1694d1044945e3237730eab9b29","sha256:5ec793be1af3a107ce81240f2e3faef2a9a833cffa08bddec0c59eec7a6ffe85"],"state_sha256":"42e41e3df7453275193343538f31d0911d5bcfd37faa71426167b6bc22d0c714"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"voLUppC3s2XuxVkZFhxsINO4zBnbUa54M+NjdH7D9GhBYLL2z3MrcmF/KAPwYzPUn44xIOfvhLLKXiK3pbFzDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T00:45:45.086196Z","bundle_sha256":"f650d26bfb6f730a0c41dde6db377357057039cfc8a2aa8ace00949743dc67c3"}}