{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TW4RMCE66IHQRO4UDDK23RFVDK","short_pith_number":"pith:TW4RMCE6","canonical_record":{"source":{"id":"1804.05275","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-14T20:53:40Z","cross_cats_sorted":[],"title_canon_sha256":"67e6fe5db0d8e093698318e7ed4285abfa2613e73e38d201c8e9855f47ef287b","abstract_canon_sha256":"088babad73eef18b5964a71066dcbb623ce5c3b79203e383949fec3fedf28bad"},"schema_version":"1.0"},"canonical_sha256":"9db916089ef20f08bb9418d5adc4b51ab5714cb6731f210d9887a8f2efc36c8f","source":{"kind":"arxiv","id":"1804.05275","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05275","created_at":"2026-05-18T00:01:09Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05275v4","created_at":"2026-05-18T00:01:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05275","created_at":"2026-05-18T00:01:09Z"},{"alias_kind":"pith_short_12","alias_value":"TW4RMCE66IHQ","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TW4RMCE66IHQRO4U","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TW4RMCE6","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TW4RMCE66IHQRO4UDDK23RFVDK","target":"record","payload":{"canonical_record":{"source":{"id":"1804.05275","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-14T20:53:40Z","cross_cats_sorted":[],"title_canon_sha256":"67e6fe5db0d8e093698318e7ed4285abfa2613e73e38d201c8e9855f47ef287b","abstract_canon_sha256":"088babad73eef18b5964a71066dcbb623ce5c3b79203e383949fec3fedf28bad"},"schema_version":"1.0"},"canonical_sha256":"9db916089ef20f08bb9418d5adc4b51ab5714cb6731f210d9887a8f2efc36c8f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:09.540860Z","signature_b64":"G0wDJGjNRfo9e4mJYNtTLI9N+7l4uSMfjn2Kv075UdwLbFxd9OEhEaXqj5VWxhVSOxa/+w1mSPJsZcyeof+bCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9db916089ef20f08bb9418d5adc4b51ab5714cb6731f210d9887a8f2efc36c8f","last_reissued_at":"2026-05-18T00:01:09.540241Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:09.540241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.05275","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:01:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yV5Nij+V0hCq4iDUpGN9lYC2G5nL39Aem2xmpr7Wj63HhYdE3NMiELU1PDZ++RU0M/dBes2D9oYbP5Wit/gLAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T19:57:56.659976Z"},"content_sha256":"4a80e98d9be61b71991a58eee82d044e3fddece67f5fba299e3326606bfcf1b3","schema_version":"1.0","event_id":"sha256:4a80e98d9be61b71991a58eee82d044e3fddece67f5fba299e3326606bfcf1b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TW4RMCE66IHQRO4UDDK23RFVDK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Horizontal Pyramid Matching for Person Re-identification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Gao Huang, Honghui Shi, Thomas Huang, Xinchao Wang, Yang Fu, Yunchao Wei, Yuqian Zhou, Zhiqiang Yao","submitted_at":"2018-04-14T20:53:40Z","abstract_excerpt":"Despite the remarkable recent progress, person re-identification (Re-ID) approaches are still suffering from the failure cases where the discriminative body parts are missing. To mitigate such cases, we propose a simple yet effective Horizontal Pyramid Matching (HPM) approach to fully exploit various partial information of a given person, so that correct person candidates can be still identified even even some key parts are missing. Within the HPM, we make the following contributions to produce a more robust feature representation for the Re-ID task: 1) we learn to classify using partial featu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05275","kind":"arxiv","version":4},"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":"2026-05-18T00:01:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kG/JWrR6kPectoKgz4qMbEQ2jN6K9cI1/zqNOQLnsmUw1GQzGvltTItbfloZ6lwVPUggOmtgZN1xkrzMBqJ5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T19:57:56.660725Z"},"content_sha256":"e829797189e5d209ccbca289a6f987dfedec2a2ae6919261db6469d053563122","schema_version":"1.0","event_id":"sha256:e829797189e5d209ccbca289a6f987dfedec2a2ae6919261db6469d053563122"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TW4RMCE66IHQRO4UDDK23RFVDK/bundle.json","state_url":"https://pith.science/pith/TW4RMCE66IHQRO4UDDK23RFVDK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TW4RMCE66IHQRO4UDDK23RFVDK/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":"2026-06-05T19:57:56Z","links":{"resolver":"https://pith.science/pith/TW4RMCE66IHQRO4UDDK23RFVDK","bundle":"https://pith.science/pith/TW4RMCE66IHQRO4UDDK23RFVDK/bundle.json","state":"https://pith.science/pith/TW4RMCE66IHQRO4UDDK23RFVDK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TW4RMCE66IHQRO4UDDK23RFVDK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TW4RMCE66IHQRO4UDDK23RFVDK","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":"088babad73eef18b5964a71066dcbb623ce5c3b79203e383949fec3fedf28bad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-14T20:53:40Z","title_canon_sha256":"67e6fe5db0d8e093698318e7ed4285abfa2613e73e38d201c8e9855f47ef287b"},"schema_version":"1.0","source":{"id":"1804.05275","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05275","created_at":"2026-05-18T00:01:09Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05275v4","created_at":"2026-05-18T00:01:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05275","created_at":"2026-05-18T00:01:09Z"},{"alias_kind":"pith_short_12","alias_value":"TW4RMCE66IHQ","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TW4RMCE66IHQRO4U","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TW4RMCE6","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:e829797189e5d209ccbca289a6f987dfedec2a2ae6919261db6469d053563122","target":"graph","created_at":"2026-05-18T00:01:09Z","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":"Despite the remarkable recent progress, person re-identification (Re-ID) approaches are still suffering from the failure cases where the discriminative body parts are missing. To mitigate such cases, we propose a simple yet effective Horizontal Pyramid Matching (HPM) approach to fully exploit various partial information of a given person, so that correct person candidates can be still identified even even some key parts are missing. Within the HPM, we make the following contributions to produce a more robust feature representation for the Re-ID task: 1) we learn to classify using partial featu","authors_text":"Gao Huang, Honghui Shi, Thomas Huang, Xinchao Wang, Yang Fu, Yunchao Wei, Yuqian Zhou, Zhiqiang Yao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-14T20:53:40Z","title":"Horizontal Pyramid Matching for Person Re-identification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05275","kind":"arxiv","version":4},"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":"sha256:4a80e98d9be61b71991a58eee82d044e3fddece67f5fba299e3326606bfcf1b3","target":"record","created_at":"2026-05-18T00:01:09Z","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":"088babad73eef18b5964a71066dcbb623ce5c3b79203e383949fec3fedf28bad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-14T20:53:40Z","title_canon_sha256":"67e6fe5db0d8e093698318e7ed4285abfa2613e73e38d201c8e9855f47ef287b"},"schema_version":"1.0","source":{"id":"1804.05275","kind":"arxiv","version":4}},"canonical_sha256":"9db916089ef20f08bb9418d5adc4b51ab5714cb6731f210d9887a8f2efc36c8f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9db916089ef20f08bb9418d5adc4b51ab5714cb6731f210d9887a8f2efc36c8f","first_computed_at":"2026-05-18T00:01:09.540241Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:09.540241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G0wDJGjNRfo9e4mJYNtTLI9N+7l4uSMfjn2Kv075UdwLbFxd9OEhEaXqj5VWxhVSOxa/+w1mSPJsZcyeof+bCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:09.540860Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.05275","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a80e98d9be61b71991a58eee82d044e3fddece67f5fba299e3326606bfcf1b3","sha256:e829797189e5d209ccbca289a6f987dfedec2a2ae6919261db6469d053563122"],"state_sha256":"c21f6d10c74758cec688164723b4c2d67176c101489468ff33c5a3c4947d5f27"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZkyM9cly1vVGR3IgplWoY7Dk0lWlj5O8N4NV4DegKJ0UNT8LEt+aDUb6BNxDvABMCUtjgy3U5KrmBqGFx+tLDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T19:57:56.664599Z","bundle_sha256":"eeacb2192d06c4d10914449d74d5e2b429ce394c7f86043dbd0f0485f58d4d53"}}