{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:Z6YYHNT2P5NHIEN2VNEG5NVKBP","short_pith_number":"pith:Z6YYHNT2","canonical_record":{"source":{"id":"2006.11693","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-06-21T02:38:59Z","cross_cats_sorted":[],"title_canon_sha256":"4f1ae6a34bd2a6a6f7c4f3c81a1fee9f11afa982f824ece3b8741708e5e62801","abstract_canon_sha256":"82bef743656e047105480aeb59534a0e859d28fedef04fb82c530b0348274b9e"},"schema_version":"1.0"},"canonical_sha256":"cfb183b67a7f5a7411baab486eb6aa0bf54efd5c66fe7f6e897e6904fdce003b","source":{"kind":"arxiv","id":"2006.11693","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.11693","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"arxiv_version","alias_value":"2006.11693v2","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.11693","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"pith_short_12","alias_value":"Z6YYHNT2P5NH","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"Z6YYHNT2P5NHIEN2","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"Z6YYHNT2","created_at":"2026-07-05T01:26:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:Z6YYHNT2P5NHIEN2VNEG5NVKBP","target":"record","payload":{"canonical_record":{"source":{"id":"2006.11693","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-06-21T02:38:59Z","cross_cats_sorted":[],"title_canon_sha256":"4f1ae6a34bd2a6a6f7c4f3c81a1fee9f11afa982f824ece3b8741708e5e62801","abstract_canon_sha256":"82bef743656e047105480aeb59534a0e859d28fedef04fb82c530b0348274b9e"},"schema_version":"1.0"},"canonical_sha256":"cfb183b67a7f5a7411baab486eb6aa0bf54efd5c66fe7f6e897e6904fdce003b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:26:41.983913Z","signature_b64":"XXn09r9WV7g1Ns275GM7EPpjOsXtygHP04Vv19Omrp30Ysdn9RPuZPqQTcY8WmnP/hKmCLIKInzY0yidPsepCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cfb183b67a7f5a7411baab486eb6aa0bf54efd5c66fe7f6e897e6904fdce003b","last_reissued_at":"2026-07-05T01:26:41.983464Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:26:41.983464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.11693","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":"2026-07-05T01:26:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PWW9+3zO+6m4+Zgw6/ecBkLNQg0js/PpAhC4/IBq5EWP8bICyvesgTL2Bdv0bQd/iDJPY0Wo5IUieTQc5+lvAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T18:24:45.552418Z"},"content_sha256":"d8e400886f01e9e4db9f19433e8d68cf9e26f41ee49bb62a2a6fbc4cc5ac8086","schema_version":"1.0","event_id":"sha256:d8e400886f01e9e4db9f19433e8d68cf9e26f41ee49bb62a2a6fbc4cc5ac8086"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:Z6YYHNT2P5NHIEN2VNEG5NVKBP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dense-Captioning Events in Videos: SYSU Submission to ActivityNet Challenge 2020","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Huicheng Zheng, Mingjing Yu, Teng Wang","submitted_at":"2020-06-21T02:38:59Z","abstract_excerpt":"This technical report presents a brief description of our submission to the dense video captioning task of ActivityNet Challenge 2020. Our approach follows a two-stage pipeline: first, we extract a set of temporal event proposals; then we propose a multi-event captioning model to capture the event-level temporal relationships and effectively fuse the multi-modal information. Our approach achieves a 9.28 METEOR score on the test set."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.11693","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/2006.11693/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":"2026-07-05T01:26:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lNeyxrnlnMGgHUCi8B/NlseMZOSu2AituLSkabjpBK0jQnvS2jfsPsR7QcP1ACWKxCEVZiHDv2Z1cgR2sFg6Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T18:24:45.553487Z"},"content_sha256":"c6a7e0e4af4116f985b55a171d258401635e85a71d6996b4caa9660f2baf4703","schema_version":"1.0","event_id":"sha256:c6a7e0e4af4116f985b55a171d258401635e85a71d6996b4caa9660f2baf4703"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z6YYHNT2P5NHIEN2VNEG5NVKBP/bundle.json","state_url":"https://pith.science/pith/Z6YYHNT2P5NHIEN2VNEG5NVKBP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z6YYHNT2P5NHIEN2VNEG5NVKBP/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":"2026-08-10T18:24:45Z","links":{"resolver":"https://pith.science/pith/Z6YYHNT2P5NHIEN2VNEG5NVKBP","bundle":"https://pith.science/pith/Z6YYHNT2P5NHIEN2VNEG5NVKBP/bundle.json","state":"https://pith.science/pith/Z6YYHNT2P5NHIEN2VNEG5NVKBP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z6YYHNT2P5NHIEN2VNEG5NVKBP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:Z6YYHNT2P5NHIEN2VNEG5NVKBP","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":"82bef743656e047105480aeb59534a0e859d28fedef04fb82c530b0348274b9e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-06-21T02:38:59Z","title_canon_sha256":"4f1ae6a34bd2a6a6f7c4f3c81a1fee9f11afa982f824ece3b8741708e5e62801"},"schema_version":"1.0","source":{"id":"2006.11693","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.11693","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"arxiv_version","alias_value":"2006.11693v2","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.11693","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"pith_short_12","alias_value":"Z6YYHNT2P5NH","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"Z6YYHNT2P5NHIEN2","created_at":"2026-07-05T01:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"Z6YYHNT2","created_at":"2026-07-05T01:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:c6a7e0e4af4116f985b55a171d258401635e85a71d6996b4caa9660f2baf4703","target":"graph","created_at":"2026-07-05T01:26:41Z","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/2006.11693/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This technical report presents a brief description of our submission to the dense video captioning task of ActivityNet Challenge 2020. Our approach follows a two-stage pipeline: first, we extract a set of temporal event proposals; then we propose a multi-event captioning model to capture the event-level temporal relationships and effectively fuse the multi-modal information. Our approach achieves a 9.28 METEOR score on the test set.","authors_text":"Huicheng Zheng, Mingjing Yu, Teng Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-06-21T02:38:59Z","title":"Dense-Captioning Events in Videos: SYSU Submission to ActivityNet Challenge 2020"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.11693","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:d8e400886f01e9e4db9f19433e8d68cf9e26f41ee49bb62a2a6fbc4cc5ac8086","target":"record","created_at":"2026-07-05T01:26:41Z","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":"82bef743656e047105480aeb59534a0e859d28fedef04fb82c530b0348274b9e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-06-21T02:38:59Z","title_canon_sha256":"4f1ae6a34bd2a6a6f7c4f3c81a1fee9f11afa982f824ece3b8741708e5e62801"},"schema_version":"1.0","source":{"id":"2006.11693","kind":"arxiv","version":2}},"canonical_sha256":"cfb183b67a7f5a7411baab486eb6aa0bf54efd5c66fe7f6e897e6904fdce003b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cfb183b67a7f5a7411baab486eb6aa0bf54efd5c66fe7f6e897e6904fdce003b","first_computed_at":"2026-07-05T01:26:41.983464Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:26:41.983464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XXn09r9WV7g1Ns275GM7EPpjOsXtygHP04Vv19Omrp30Ysdn9RPuZPqQTcY8WmnP/hKmCLIKInzY0yidPsepCA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:26:41.983913Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.11693","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8e400886f01e9e4db9f19433e8d68cf9e26f41ee49bb62a2a6fbc4cc5ac8086","sha256:c6a7e0e4af4116f985b55a171d258401635e85a71d6996b4caa9660f2baf4703"],"state_sha256":"13ac59feef4eda440364aaa84c351e07768e754e2f323144687648336164b5fc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3aFNlJIszVx9gvEpi89bVL88FVpCOeM7h+FqhQUggmdaNGC+2GjXJSUwGR2rV6q0y0d9JLyqJ/d1PAfjTqdvDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T18:24:45.559356Z","bundle_sha256":"bc79c2d9faf177699a74206a5cddfbfd60ff4fd181c058995340a3448b03ba2c"}}