{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:O5D5JLQ6C3G67O7UNOWSFAB37L","short_pith_number":"pith:O5D5JLQ6","canonical_record":{"source":{"id":"2105.07345","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-16T03:53:55Z","cross_cats_sorted":[],"title_canon_sha256":"19d240074262a7a3f248c41e249445b10dcaa99a606c893a05c8725136ae268c","abstract_canon_sha256":"66b3d5466693f77ca1c3414bc7f9bc160918c01512ac1444610c761372f2ae7d"},"schema_version":"1.0"},"canonical_sha256":"7747d4ae1e16cdefbbf46bad22803bfae90ce3378c140f2d21729eea8ed81539","source":{"kind":"arxiv","id":"2105.07345","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.07345","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"arxiv_version","alias_value":"2105.07345v1","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.07345","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"pith_short_12","alias_value":"O5D5JLQ6C3G6","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"pith_short_16","alias_value":"O5D5JLQ6C3G67O7U","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"pith_short_8","alias_value":"O5D5JLQ6","created_at":"2026-07-05T02:40:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:O5D5JLQ6C3G67O7UNOWSFAB37L","target":"record","payload":{"canonical_record":{"source":{"id":"2105.07345","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-16T03:53:55Z","cross_cats_sorted":[],"title_canon_sha256":"19d240074262a7a3f248c41e249445b10dcaa99a606c893a05c8725136ae268c","abstract_canon_sha256":"66b3d5466693f77ca1c3414bc7f9bc160918c01512ac1444610c761372f2ae7d"},"schema_version":"1.0"},"canonical_sha256":"7747d4ae1e16cdefbbf46bad22803bfae90ce3378c140f2d21729eea8ed81539","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:40:39.996613Z","signature_b64":"DSXarIsG2BeRknsRG+lE7dm7Wwug/m+dX7W299QUbz0Zny6ZnBT2PX46NQfarBs6yE6Ebd2fc5RzwY6Vwn17CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7747d4ae1e16cdefbbf46bad22803bfae90ce3378c140f2d21729eea8ed81539","last_reissued_at":"2026-07-05T02:40:39.996173Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:40:39.996173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.07345","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":"2026-07-05T02:40:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hXP+PV22dbSkjNsTYD4/owysoHiXkFf3ObR9kPO5oZa2IsEfD2iK+fWnt2mengOn6w0DCawxLWjIsSLkUMJZCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T17:48:12.845117Z"},"content_sha256":"069175938aa04547a5118baa6ae70c9f738b2514b30954dffaf60daa99ecb223","schema_version":"1.0","event_id":"sha256:069175938aa04547a5118baa6ae70c9f738b2514b30954dffaf60daa99ecb223"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:O5D5JLQ6C3G67O7UNOWSFAB37L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neighbourhood-guided Feature Reconstruction for Occluded Person Re-Identification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Dapeng Chen, Haobin Chen, Rui Zhao, Shijie Yu, Yu Qiao","submitted_at":"2021-05-16T03:53:55Z","abstract_excerpt":"Person images captured by surveillance cameras are often occluded by various obstacles, which lead to defective feature representation and harm person re-identification (Re-ID) performance. To tackle this challenge, we propose to reconstruct the feature representation of occluded parts by fully exploiting the information of its neighborhood in a gallery image set. Specifically, we first introduce a visible part-based feature by body mask for each person image. Then we identify its neighboring samples using the visible features and reconstruct the representation of the full body by an outlier-r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.07345","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/2105.07345/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":"2026-07-05T02:40:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7qbFkp0HhIbKmbV2cwcgIRmfJiLS7GkVQ6xIalrpuHxQo969Whu/Snj1JSijc4oDhZYFD/Ml+62lIoWqSxlJCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T17:48:12.846028Z"},"content_sha256":"223eb51ebd30f2c6c408838ff0c2bc690c5d2a131f5a0760b1f147487224ff95","schema_version":"1.0","event_id":"sha256:223eb51ebd30f2c6c408838ff0c2bc690c5d2a131f5a0760b1f147487224ff95"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O5D5JLQ6C3G67O7UNOWSFAB37L/bundle.json","state_url":"https://pith.science/pith/O5D5JLQ6C3G67O7UNOWSFAB37L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O5D5JLQ6C3G67O7UNOWSFAB37L/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":"2026-08-06T17:48:12Z","links":{"resolver":"https://pith.science/pith/O5D5JLQ6C3G67O7UNOWSFAB37L","bundle":"https://pith.science/pith/O5D5JLQ6C3G67O7UNOWSFAB37L/bundle.json","state":"https://pith.science/pith/O5D5JLQ6C3G67O7UNOWSFAB37L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O5D5JLQ6C3G67O7UNOWSFAB37L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:O5D5JLQ6C3G67O7UNOWSFAB37L","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":"66b3d5466693f77ca1c3414bc7f9bc160918c01512ac1444610c761372f2ae7d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-16T03:53:55Z","title_canon_sha256":"19d240074262a7a3f248c41e249445b10dcaa99a606c893a05c8725136ae268c"},"schema_version":"1.0","source":{"id":"2105.07345","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.07345","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"arxiv_version","alias_value":"2105.07345v1","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.07345","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"pith_short_12","alias_value":"O5D5JLQ6C3G6","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"pith_short_16","alias_value":"O5D5JLQ6C3G67O7U","created_at":"2026-07-05T02:40:39Z"},{"alias_kind":"pith_short_8","alias_value":"O5D5JLQ6","created_at":"2026-07-05T02:40:39Z"}],"graph_snapshots":[{"event_id":"sha256:223eb51ebd30f2c6c408838ff0c2bc690c5d2a131f5a0760b1f147487224ff95","target":"graph","created_at":"2026-07-05T02:40:39Z","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/2105.07345/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Person images captured by surveillance cameras are often occluded by various obstacles, which lead to defective feature representation and harm person re-identification (Re-ID) performance. To tackle this challenge, we propose to reconstruct the feature representation of occluded parts by fully exploiting the information of its neighborhood in a gallery image set. Specifically, we first introduce a visible part-based feature by body mask for each person image. Then we identify its neighboring samples using the visible features and reconstruct the representation of the full body by an outlier-r","authors_text":"Dapeng Chen, Haobin Chen, Rui Zhao, Shijie Yu, Yu Qiao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-16T03:53:55Z","title":"Neighbourhood-guided Feature Reconstruction for Occluded Person Re-Identification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.07345","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":"sha256:069175938aa04547a5118baa6ae70c9f738b2514b30954dffaf60daa99ecb223","target":"record","created_at":"2026-07-05T02:40:39Z","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":"66b3d5466693f77ca1c3414bc7f9bc160918c01512ac1444610c761372f2ae7d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-16T03:53:55Z","title_canon_sha256":"19d240074262a7a3f248c41e249445b10dcaa99a606c893a05c8725136ae268c"},"schema_version":"1.0","source":{"id":"2105.07345","kind":"arxiv","version":1}},"canonical_sha256":"7747d4ae1e16cdefbbf46bad22803bfae90ce3378c140f2d21729eea8ed81539","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7747d4ae1e16cdefbbf46bad22803bfae90ce3378c140f2d21729eea8ed81539","first_computed_at":"2026-07-05T02:40:39.996173Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:40:39.996173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DSXarIsG2BeRknsRG+lE7dm7Wwug/m+dX7W299QUbz0Zny6ZnBT2PX46NQfarBs6yE6Ebd2fc5RzwY6Vwn17CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:40:39.996613Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.07345","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:069175938aa04547a5118baa6ae70c9f738b2514b30954dffaf60daa99ecb223","sha256:223eb51ebd30f2c6c408838ff0c2bc690c5d2a131f5a0760b1f147487224ff95"],"state_sha256":"33261471a6712bb1f9632a3befe01f55cb4a5d52b1a751f07bc6a3c86948dc70"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XP66kihSSUdY04axF5avXRSQAvvHiY4TOZugBMd+tDjkWY8rRNn+1lnECGv7ML4Y/XC7lJJoq6dmt04ZTNqRDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T17:48:12.851647Z","bundle_sha256":"f3b67157db1ab5a0c21fd56b837a0f1fe0f645adb4b0a7498717e24e062dc296"}}