{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:4B4UDRBOOOB44EC3JKDG67V6YC","short_pith_number":"pith:4B4UDRBO","canonical_record":{"source":{"id":"2005.04463","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-05-09T15:24:51Z","cross_cats_sorted":[],"title_canon_sha256":"e2c79dcc8b77557329d916b5f2e1b3c088d794f3130ab3d01c9cb0cb62aa9a8b","abstract_canon_sha256":"39a698a17aec6fa469f286e5be5bfc60af17ac0ccd5dc657d82da30e7e6310fa"},"schema_version":"1.0"},"canonical_sha256":"e07941c42e7383ce105b4a866f7ebec092fcc2ac07738759f91b394409d44020","source":{"kind":"arxiv","id":"2005.04463","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.04463","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"arxiv_version","alias_value":"2005.04463v1","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.04463","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"pith_short_12","alias_value":"4B4UDRBOOOB4","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"pith_short_16","alias_value":"4B4UDRBOOOB44EC3","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"pith_short_8","alias_value":"4B4UDRBO","created_at":"2026-07-05T01:01:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:4B4UDRBOOOB44EC3JKDG67V6YC","target":"record","payload":{"canonical_record":{"source":{"id":"2005.04463","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-05-09T15:24:51Z","cross_cats_sorted":[],"title_canon_sha256":"e2c79dcc8b77557329d916b5f2e1b3c088d794f3130ab3d01c9cb0cb62aa9a8b","abstract_canon_sha256":"39a698a17aec6fa469f286e5be5bfc60af17ac0ccd5dc657d82da30e7e6310fa"},"schema_version":"1.0"},"canonical_sha256":"e07941c42e7383ce105b4a866f7ebec092fcc2ac07738759f91b394409d44020","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:01:44.231235Z","signature_b64":"1d+e9cdBwhGvL+667NXNpnFXKa39CkghQ8RuccSV0tMFo62Sszy85soB7NaHk8YCng8jm6+Gmxkku6Md64xUAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e07941c42e7383ce105b4a866f7ebec092fcc2ac07738759f91b394409d44020","last_reissued_at":"2026-07-05T01:01:44.230821Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:01:44.230821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.04463","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":"2026-07-05T01:01:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dVHDF4Yumym9r3Xu5FZTk0g4/sBnyyLfAiet8XRaukcKRfHxEM/FRbbDo5eSnVjQwORvyMYQ3c3wFn3TSf5GCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:06:13.776859Z"},"content_sha256":"06bb98e357b42cb39137decc81f7cbe30c03197eac3e319590677fbb1ad80b1c","schema_version":"1.0","event_id":"sha256:06bb98e357b42cb39137decc81f7cbe30c03197eac3e319590677fbb1ad80b1c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:4B4UDRBOOOB44EC3JKDG67V6YC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vehicle Re-Identification Based on Complementary Features","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Cunyuan Gao, Jiaqi Zhao, Rui Yao, Yi Hu, Yi Zhang, Yong Zhou","submitted_at":"2020-05-09T15:24:51Z","abstract_excerpt":"In this work, we present our solution to the vehicle re-identification (vehicle Re-ID) track in AI City Challenge 2020 (AIC2020). The purpose of vehicle Re-ID is to retrieve the same vehicle appeared across multiple cameras, and it could make a great contribution to the Intelligent Traffic System(ITS) and smart city. Due to the vehicle's orientation, lighting and inter-class similarity, it is difficult to achieve robust and discriminative representation feature. For the vehicle Re-ID track in AIC2020, our method is to fuse features extracted from different networks in order to take advantages "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.04463","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/2005.04463/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":"2026-07-05T01:01:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hGNMaFLI/JB32sFVCG657Uy/TTT7NvMwVsW5fQUkBhwyBP1R8ng4OnRnB+Wf0L89hnc7K7clUGeZ4BuZ0Nm9DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:06:13.777411Z"},"content_sha256":"b8ab14659a42d99518f4187b78b9bbbf8df5131e2ebde7198936bee0b8d6e817","schema_version":"1.0","event_id":"sha256:b8ab14659a42d99518f4187b78b9bbbf8df5131e2ebde7198936bee0b8d6e817"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4B4UDRBOOOB44EC3JKDG67V6YC/bundle.json","state_url":"https://pith.science/pith/4B4UDRBOOOB44EC3JKDG67V6YC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4B4UDRBOOOB44EC3JKDG67V6YC/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":"2026-08-07T00:06:13Z","links":{"resolver":"https://pith.science/pith/4B4UDRBOOOB44EC3JKDG67V6YC","bundle":"https://pith.science/pith/4B4UDRBOOOB44EC3JKDG67V6YC/bundle.json","state":"https://pith.science/pith/4B4UDRBOOOB44EC3JKDG67V6YC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4B4UDRBOOOB44EC3JKDG67V6YC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:4B4UDRBOOOB44EC3JKDG67V6YC","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":"39a698a17aec6fa469f286e5be5bfc60af17ac0ccd5dc657d82da30e7e6310fa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-05-09T15:24:51Z","title_canon_sha256":"e2c79dcc8b77557329d916b5f2e1b3c088d794f3130ab3d01c9cb0cb62aa9a8b"},"schema_version":"1.0","source":{"id":"2005.04463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.04463","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"arxiv_version","alias_value":"2005.04463v1","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.04463","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"pith_short_12","alias_value":"4B4UDRBOOOB4","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"pith_short_16","alias_value":"4B4UDRBOOOB44EC3","created_at":"2026-07-05T01:01:44Z"},{"alias_kind":"pith_short_8","alias_value":"4B4UDRBO","created_at":"2026-07-05T01:01:44Z"}],"graph_snapshots":[{"event_id":"sha256:b8ab14659a42d99518f4187b78b9bbbf8df5131e2ebde7198936bee0b8d6e817","target":"graph","created_at":"2026-07-05T01:01:44Z","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/2005.04463/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we present our solution to the vehicle re-identification (vehicle Re-ID) track in AI City Challenge 2020 (AIC2020). The purpose of vehicle Re-ID is to retrieve the same vehicle appeared across multiple cameras, and it could make a great contribution to the Intelligent Traffic System(ITS) and smart city. Due to the vehicle's orientation, lighting and inter-class similarity, it is difficult to achieve robust and discriminative representation feature. For the vehicle Re-ID track in AIC2020, our method is to fuse features extracted from different networks in order to take advantages ","authors_text":"Cunyuan Gao, Jiaqi Zhao, Rui Yao, Yi Hu, Yi Zhang, Yong Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-05-09T15:24:51Z","title":"Vehicle Re-Identification Based on Complementary Features"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.04463","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":"sha256:06bb98e357b42cb39137decc81f7cbe30c03197eac3e319590677fbb1ad80b1c","target":"record","created_at":"2026-07-05T01:01:44Z","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":"39a698a17aec6fa469f286e5be5bfc60af17ac0ccd5dc657d82da30e7e6310fa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-05-09T15:24:51Z","title_canon_sha256":"e2c79dcc8b77557329d916b5f2e1b3c088d794f3130ab3d01c9cb0cb62aa9a8b"},"schema_version":"1.0","source":{"id":"2005.04463","kind":"arxiv","version":1}},"canonical_sha256":"e07941c42e7383ce105b4a866f7ebec092fcc2ac07738759f91b394409d44020","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e07941c42e7383ce105b4a866f7ebec092fcc2ac07738759f91b394409d44020","first_computed_at":"2026-07-05T01:01:44.230821Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:01:44.230821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1d+e9cdBwhGvL+667NXNpnFXKa39CkghQ8RuccSV0tMFo62Sszy85soB7NaHk8YCng8jm6+Gmxkku6Md64xUAw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:01:44.231235Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.04463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06bb98e357b42cb39137decc81f7cbe30c03197eac3e319590677fbb1ad80b1c","sha256:b8ab14659a42d99518f4187b78b9bbbf8df5131e2ebde7198936bee0b8d6e817"],"state_sha256":"a1fb9d36c1e8eef46db9d059b1a1d046365f8fc3390d6cb5bfdde4511534d65d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v6l48mGwak3mw4VDhu1Fur1RBEUVlZ0mVhVXAjoSRMIWQAzjhwvig8m56zGPUszlur7QyTRdDGh1c5yZiNBgCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T00:06:13.781432Z","bundle_sha256":"fdb5acc530b3df09f8190514396a0d939ad22784d041375c739dd97883eee6cb"}}