{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:TCGKRSBN43RAEWCGCN5HEXSPFK","short_pith_number":"pith:TCGKRSBN","canonical_record":{"source":{"id":"2001.01886","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2020-01-07T04:36:53Z","cross_cats_sorted":[],"title_canon_sha256":"a9ce27c7b04fea35df7167c02691dfbc009be7bcd22423409ccb7f8c4a0f98e0","abstract_canon_sha256":"bca5199e9a866e20f45f273fd123274752f14d8ec5773d66226d43a249d89539"},"schema_version":"1.0"},"canonical_sha256":"988ca8c82de6e2025846137a725e4f2a8ca1da3a30ab47aa085888e6262f7f89","source":{"kind":"arxiv","id":"2001.01886","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.01886","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"arxiv_version","alias_value":"2001.01886v2","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.01886","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"pith_short_12","alias_value":"TCGKRSBN43RA","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"pith_short_16","alias_value":"TCGKRSBN43RAEWCG","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"pith_short_8","alias_value":"TCGKRSBN","created_at":"2026-07-05T01:06:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:TCGKRSBN43RAEWCGCN5HEXSPFK","target":"record","payload":{"canonical_record":{"source":{"id":"2001.01886","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2020-01-07T04:36:53Z","cross_cats_sorted":[],"title_canon_sha256":"a9ce27c7b04fea35df7167c02691dfbc009be7bcd22423409ccb7f8c4a0f98e0","abstract_canon_sha256":"bca5199e9a866e20f45f273fd123274752f14d8ec5773d66226d43a249d89539"},"schema_version":"1.0"},"canonical_sha256":"988ca8c82de6e2025846137a725e4f2a8ca1da3a30ab47aa085888e6262f7f89","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:06:52.291991Z","signature_b64":"IWgMktK8iVeyaI8oqwIkH/1PKv23BPbLXtS4Lai1cs7P4BwZv30I2v1he4rWEL/pCf9hBGNnClIereTTNgI7Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"988ca8c82de6e2025846137a725e4f2a8ca1da3a30ab47aa085888e6262f7f89","last_reissued_at":"2026-07-05T01:06:52.291553Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:06:52.291553Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.01886","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":"2026-07-05T01:06:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Td87YeiKXayQvN37bcduSKnRQTQI78rV+xGqBj9gX63AxcWiXC1HbWlGbeDyX8V2rkZ3Hg6Nix231N83XqhfBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:04:32.002515Z"},"content_sha256":"5117d25f94bcdc9f9a087deb7e678f7e5c31d85401817ba78b2514b2632264de","schema_version":"1.0","event_id":"sha256:5117d25f94bcdc9f9a087deb7e678f7e5c31d85401817ba78b2514b2632264de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:TCGKRSBN43RAEWCGCN5HEXSPFK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"From Open Set to Closed Set: Supervised Spatial Divide-and-Conquer for Object Counting","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chengxin Liu, Chunhua Shen, Haipeng Xiong, Hao Lu, Liang Liu, Zhiguo Cao","submitted_at":"2020-01-07T04:36:53Z","abstract_excerpt":"Visual counting, a task that aims to estimate the number of objects from an image/video, is an open-set problem by nature, i.e., the number of population can vary in [0, inf) in theory. However, collected data and labeled instances are limited in reality, which means that only a small closed set is observed. Existing methods typically model this task in a regression manner, while they are prone to suffer from an unseen scene with counts out of the scope of the closed set. In fact, counting has an interesting and exclusive property---spatially decomposable. A dense region can always be divided "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.01886","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/2001.01886/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":"2026-07-05T01:06:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ghPj5dWD+awBCTmSUq4z8z14l9fIETCsFIhaQteZ46fNAI9dv9rPePiX1tzdJe97XlqgMkRXwCGHitsJpi/gDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:04:32.003025Z"},"content_sha256":"578ec7d64281818fe197be351c1e7b522c836316ccd0f838646100c24c9872fd","schema_version":"1.0","event_id":"sha256:578ec7d64281818fe197be351c1e7b522c836316ccd0f838646100c24c9872fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TCGKRSBN43RAEWCGCN5HEXSPFK/bundle.json","state_url":"https://pith.science/pith/TCGKRSBN43RAEWCGCN5HEXSPFK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TCGKRSBN43RAEWCGCN5HEXSPFK/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":"2026-08-06T18:04:32Z","links":{"resolver":"https://pith.science/pith/TCGKRSBN43RAEWCGCN5HEXSPFK","bundle":"https://pith.science/pith/TCGKRSBN43RAEWCGCN5HEXSPFK/bundle.json","state":"https://pith.science/pith/TCGKRSBN43RAEWCGCN5HEXSPFK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TCGKRSBN43RAEWCGCN5HEXSPFK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:TCGKRSBN43RAEWCGCN5HEXSPFK","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":"bca5199e9a866e20f45f273fd123274752f14d8ec5773d66226d43a249d89539","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2020-01-07T04:36:53Z","title_canon_sha256":"a9ce27c7b04fea35df7167c02691dfbc009be7bcd22423409ccb7f8c4a0f98e0"},"schema_version":"1.0","source":{"id":"2001.01886","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.01886","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"arxiv_version","alias_value":"2001.01886v2","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.01886","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"pith_short_12","alias_value":"TCGKRSBN43RA","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"pith_short_16","alias_value":"TCGKRSBN43RAEWCG","created_at":"2026-07-05T01:06:52Z"},{"alias_kind":"pith_short_8","alias_value":"TCGKRSBN","created_at":"2026-07-05T01:06:52Z"}],"graph_snapshots":[{"event_id":"sha256:578ec7d64281818fe197be351c1e7b522c836316ccd0f838646100c24c9872fd","target":"graph","created_at":"2026-07-05T01:06:52Z","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/2001.01886/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Visual counting, a task that aims to estimate the number of objects from an image/video, is an open-set problem by nature, i.e., the number of population can vary in [0, inf) in theory. However, collected data and labeled instances are limited in reality, which means that only a small closed set is observed. Existing methods typically model this task in a regression manner, while they are prone to suffer from an unseen scene with counts out of the scope of the closed set. In fact, counting has an interesting and exclusive property---spatially decomposable. A dense region can always be divided ","authors_text":"Chengxin Liu, Chunhua Shen, Haipeng Xiong, Hao Lu, Liang Liu, Zhiguo Cao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2020-01-07T04:36:53Z","title":"From Open Set to Closed Set: Supervised Spatial Divide-and-Conquer for Object Counting"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.01886","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":"sha256:5117d25f94bcdc9f9a087deb7e678f7e5c31d85401817ba78b2514b2632264de","target":"record","created_at":"2026-07-05T01:06:52Z","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":"bca5199e9a866e20f45f273fd123274752f14d8ec5773d66226d43a249d89539","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2020-01-07T04:36:53Z","title_canon_sha256":"a9ce27c7b04fea35df7167c02691dfbc009be7bcd22423409ccb7f8c4a0f98e0"},"schema_version":"1.0","source":{"id":"2001.01886","kind":"arxiv","version":2}},"canonical_sha256":"988ca8c82de6e2025846137a725e4f2a8ca1da3a30ab47aa085888e6262f7f89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"988ca8c82de6e2025846137a725e4f2a8ca1da3a30ab47aa085888e6262f7f89","first_computed_at":"2026-07-05T01:06:52.291553Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:06:52.291553Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IWgMktK8iVeyaI8oqwIkH/1PKv23BPbLXtS4Lai1cs7P4BwZv30I2v1he4rWEL/pCf9hBGNnClIereTTNgI7Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:06:52.291991Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.01886","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5117d25f94bcdc9f9a087deb7e678f7e5c31d85401817ba78b2514b2632264de","sha256:578ec7d64281818fe197be351c1e7b522c836316ccd0f838646100c24c9872fd"],"state_sha256":"f65b2a10933adda8f643661368a5f929f6a603d4a122164cd61fa60921432290"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pnGCFLfrAHuWykqSAzEwgZa1FldZRQVfgmO4WLa/NmVCHyE3yiLkPvp/kJnBFp3P94/k4qaSxtzCFg7mIsiYDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T18:04:32.007010Z","bundle_sha256":"97a1d3e43b80b2c86817416209b100c84adbd19b7f1b1b75b1da809a7946130f"}}