{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:SA3BMBTXHN33XVKCPWXEVONYCD","short_pith_number":"pith:SA3BMBTX","canonical_record":{"source":{"id":"1902.06854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-19T01:09:56Z","cross_cats_sorted":[],"title_canon_sha256":"2a9e4ce118b8ee896e50a41f241a2fa81a1a92663019c7d1d1820f2eb03284e0","abstract_canon_sha256":"aae9d395d91eb33013338fd65c89adc57641fe5bd2c92a553c7868df3b493416"},"schema_version":"1.0"},"canonical_sha256":"90361606773b77bbd5427dae4ab9b810f516431137f8adfa095424012913b471","source":{"kind":"arxiv","id":"1902.06854","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.06854","created_at":"2026-05-17T23:53:40Z"},{"alias_kind":"arxiv_version","alias_value":"1902.06854v1","created_at":"2026-05-17T23:53:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.06854","created_at":"2026-05-17T23:53:40Z"},{"alias_kind":"pith_short_12","alias_value":"SA3BMBTXHN33","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"SA3BMBTXHN33XVKC","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"SA3BMBTX","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:SA3BMBTXHN33XVKCPWXEVONYCD","target":"record","payload":{"canonical_record":{"source":{"id":"1902.06854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-19T01:09:56Z","cross_cats_sorted":[],"title_canon_sha256":"2a9e4ce118b8ee896e50a41f241a2fa81a1a92663019c7d1d1820f2eb03284e0","abstract_canon_sha256":"aae9d395d91eb33013338fd65c89adc57641fe5bd2c92a553c7868df3b493416"},"schema_version":"1.0"},"canonical_sha256":"90361606773b77bbd5427dae4ab9b810f516431137f8adfa095424012913b471","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:40.601638Z","signature_b64":"MOINRQFbhXp+Pqv0SXQGbXqKvqC6W3gwlO+nyFOOElCRU/YO27VbiIN41qFuqthKMFzFFP8begfCv1VXovlRBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90361606773b77bbd5427dae4ab9b810f516431137f8adfa095424012913b471","last_reissued_at":"2026-05-17T23:53:40.601020Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:40.601020Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.06854","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":"2026-05-17T23:53:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vhJiIzqJ5I1OAywfHHJVpLnGBVyJSkHHI23VZFc/MiuNj5GPforLIHAmQX5Z18iA8PLDiBOTGunCR1MbSbp8Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:13:45.422916Z"},"content_sha256":"a88a07fb7688c781ffd423c7853126ac6973e0c79df078056cb65c52ad291e7e","schema_version":"1.0","event_id":"sha256:a88a07fb7688c781ffd423c7853126ac6973e0c79df078056cb65c52ad291e7e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:SA3BMBTXHN33XVKCPWXEVONYCD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"WIDER Face and Pedestrian Challenge 2018: Methods and Results","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Artem Kukharenko, Artem Vasenin, Bingpeng Ma, Boxun Li, Boyan Zhou, Chen Change Loy, Cheng Chi, Dahua Lin, Dong Chen, Dongzhan Zhou, Fangyun Wei, Gang Yu, Hong Chang, Hongkai Zhang, Huaxiong Li, Hua Yang, Jianfeng Wang, Junjie Yan, Lei Lu, Liangqi Li, Lin Chen, Mingjun Sun, Nikolay Sergievskiy, Peng Cheng, Ping Luo, Qiaokang Xie, Qiling Xu, Qingqiu Huang, Quanquan Li, Ruiping Wang, Shifeng Zhang, Shiguang Shan, Shiying Luo, Shuai Shao, Shuo Yang, Stan Z. Li, Tao Mei, Wanli Ouyang, Wei Xia, Wengang Zhou, Wu Liu, Xiang Ming, Xilin Chen, Ye Yuan, Yiheng Liu, Yirong Mao, Yongjun Li, Yuan Hong, Yuanjun Xiong, Zhen Lei, Ziyang Wu, Zuoxin Li","submitted_at":"2019-02-19T01:09:56Z","abstract_excerpt":"This paper presents a review of the 2018 WIDER Challenge on Face and Pedestrian. The challenge focuses on the problem of precise localization of human faces and bodies, and accurate association of identities. It comprises of three tracks: (i) WIDER Face which aims at soliciting new approaches to advance the state-of-the-art in face detection, (ii) WIDER Pedestrian which aims to find effective and efficient approaches to address the problem of pedestrian detection in unconstrained environments, and (iii) WIDER Person Search which presents an exciting challenge of searching persons across 192 mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.06854","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":""},"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":"2026-05-17T23:53:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c/RJ3uakak4OLV3NA9FWh1lyRHVebgdRXPYsAy+z3SK4j1jBIr9JpW5SyfVG3bj6Mj8winJoKL73fOcNV6WmDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:13:45.423610Z"},"content_sha256":"e4f3af22518b8a3d5f746176123ca9a55bc0b3904c9a03be4d321af22ea64cb5","schema_version":"1.0","event_id":"sha256:e4f3af22518b8a3d5f746176123ca9a55bc0b3904c9a03be4d321af22ea64cb5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SA3BMBTXHN33XVKCPWXEVONYCD/bundle.json","state_url":"https://pith.science/pith/SA3BMBTXHN33XVKCPWXEVONYCD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SA3BMBTXHN33XVKCPWXEVONYCD/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":"2026-05-25T19:13:45Z","links":{"resolver":"https://pith.science/pith/SA3BMBTXHN33XVKCPWXEVONYCD","bundle":"https://pith.science/pith/SA3BMBTXHN33XVKCPWXEVONYCD/bundle.json","state":"https://pith.science/pith/SA3BMBTXHN33XVKCPWXEVONYCD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SA3BMBTXHN33XVKCPWXEVONYCD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:SA3BMBTXHN33XVKCPWXEVONYCD","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":"aae9d395d91eb33013338fd65c89adc57641fe5bd2c92a553c7868df3b493416","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-19T01:09:56Z","title_canon_sha256":"2a9e4ce118b8ee896e50a41f241a2fa81a1a92663019c7d1d1820f2eb03284e0"},"schema_version":"1.0","source":{"id":"1902.06854","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.06854","created_at":"2026-05-17T23:53:40Z"},{"alias_kind":"arxiv_version","alias_value":"1902.06854v1","created_at":"2026-05-17T23:53:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.06854","created_at":"2026-05-17T23:53:40Z"},{"alias_kind":"pith_short_12","alias_value":"SA3BMBTXHN33","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"SA3BMBTXHN33XVKC","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"SA3BMBTX","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:e4f3af22518b8a3d5f746176123ca9a55bc0b3904c9a03be4d321af22ea64cb5","target":"graph","created_at":"2026-05-17T23:53:40Z","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"},"paper":{"abstract_excerpt":"This paper presents a review of the 2018 WIDER Challenge on Face and Pedestrian. The challenge focuses on the problem of precise localization of human faces and bodies, and accurate association of identities. It comprises of three tracks: (i) WIDER Face which aims at soliciting new approaches to advance the state-of-the-art in face detection, (ii) WIDER Pedestrian which aims to find effective and efficient approaches to address the problem of pedestrian detection in unconstrained environments, and (iii) WIDER Person Search which presents an exciting challenge of searching persons across 192 mo","authors_text":"Artem Kukharenko, Artem Vasenin, Bingpeng Ma, Boxun Li, Boyan Zhou, Chen Change Loy, Cheng Chi, Dahua Lin, Dong Chen, Dongzhan Zhou, Fangyun Wei, Gang Yu, Hong Chang, Hongkai Zhang, Huaxiong Li, Hua Yang, Jianfeng Wang, Junjie Yan, Lei Lu, Liangqi Li, Lin Chen, Mingjun Sun, Nikolay Sergievskiy, Peng Cheng, Ping Luo, Qiaokang Xie, Qiling Xu, Qingqiu Huang, Quanquan Li, Ruiping Wang, Shifeng Zhang, Shiguang Shan, Shiying Luo, Shuai Shao, Shuo Yang, Stan Z. Li, Tao Mei, Wanli Ouyang, Wei Xia, Wengang Zhou, Wu Liu, Xiang Ming, Xilin Chen, Ye Yuan, Yiheng Liu, Yirong Mao, Yongjun Li, Yuan Hong, Yuanjun Xiong, Zhen Lei, Ziyang Wu, Zuoxin Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-19T01:09:56Z","title":"WIDER Face and Pedestrian Challenge 2018: Methods and Results"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.06854","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:a88a07fb7688c781ffd423c7853126ac6973e0c79df078056cb65c52ad291e7e","target":"record","created_at":"2026-05-17T23:53:40Z","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":"aae9d395d91eb33013338fd65c89adc57641fe5bd2c92a553c7868df3b493416","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-19T01:09:56Z","title_canon_sha256":"2a9e4ce118b8ee896e50a41f241a2fa81a1a92663019c7d1d1820f2eb03284e0"},"schema_version":"1.0","source":{"id":"1902.06854","kind":"arxiv","version":1}},"canonical_sha256":"90361606773b77bbd5427dae4ab9b810f516431137f8adfa095424012913b471","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90361606773b77bbd5427dae4ab9b810f516431137f8adfa095424012913b471","first_computed_at":"2026-05-17T23:53:40.601020Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:40.601020Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MOINRQFbhXp+Pqv0SXQGbXqKvqC6W3gwlO+nyFOOElCRU/YO27VbiIN41qFuqthKMFzFFP8begfCv1VXovlRBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:40.601638Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.06854","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a88a07fb7688c781ffd423c7853126ac6973e0c79df078056cb65c52ad291e7e","sha256:e4f3af22518b8a3d5f746176123ca9a55bc0b3904c9a03be4d321af22ea64cb5"],"state_sha256":"179ce515d642ef47799e0b1fc059b44aadb67071579bd6950269c55d15110864"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xQrmjlQvMFgmpdhpD3dIWfT7G6EAchYm/Pr8q5qDV7OIDiOP6iJSE4FfwJPJBSiDJ4cGURSn4A1MyB3FNvEwDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:13:45.427037Z","bundle_sha256":"82cb78a3271df2917476e58578a1228852fabd9823ec19db6bced2a1d3e6e396"}}