{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:CEXFDPMLWL456SSICQ6ERYITXI","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":"7276642da18b3e191da0d683f79bcf05db5125a84c8accbef265be79fec4e361","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-08-07T05:50:47Z","title_canon_sha256":"f33f82a331c50486ba4bb897150e22e641127a09bb3d8940848b4e7aa9552bcd"},"schema_version":"1.0","source":{"id":"2108.03372","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.03372","created_at":"2026-07-05T05:49:26Z"},{"alias_kind":"arxiv_version","alias_value":"2108.03372v4","created_at":"2026-07-05T05:49:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.03372","created_at":"2026-07-05T05:49:26Z"},{"alias_kind":"pith_short_12","alias_value":"CEXFDPMLWL45","created_at":"2026-07-05T05:49:26Z"},{"alias_kind":"pith_short_16","alias_value":"CEXFDPMLWL456SSI","created_at":"2026-07-05T05:49:26Z"},{"alias_kind":"pith_short_8","alias_value":"CEXFDPML","created_at":"2026-07-05T05:49:26Z"}],"graph_snapshots":[{"event_id":"sha256:4a2d65532ac6d61c97337c7f1bfb52b64a8fb42f71262354a3ed8044ef17017d","target":"graph","created_at":"2026-07-05T05:49:26Z","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/2108.03372/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In object re-identification (ReID), the development of deep learning techniques often involves model updates and deployment. It is unbearable to re-embedding and re-index with the system suspended when deploying new models. Therefore, backward-compatible representation is proposed to enable \"new\" features to be compared with \"old\" features directly, which means that the database is active when there are both \"new\" and \"old\" features in it. Thus we can scroll-refresh the database or even do nothing on the database to update.\n  The existing backward-compatible methods either require a strong ove","authors_text":"Liang Chen, Lingyu Duan, Minghua Deng, Shengsen Wu, Tao Bai, Yan Bai, Yihang Lou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-08-07T05:50:47Z","title":"Neighborhood Consensus Contrastive Learning for Backward-Compatible Representation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.03372","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:d10151be1f93380fb852b0a574d88687e9627b2054a98f19f14611a6c26cd392","target":"record","created_at":"2026-07-05T05:49:26Z","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":"7276642da18b3e191da0d683f79bcf05db5125a84c8accbef265be79fec4e361","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-08-07T05:50:47Z","title_canon_sha256":"f33f82a331c50486ba4bb897150e22e641127a09bb3d8940848b4e7aa9552bcd"},"schema_version":"1.0","source":{"id":"2108.03372","kind":"arxiv","version":4}},"canonical_sha256":"112e51bd8bb2f9df4a48143c48e113ba20fc2c55b2ce2e5d52c922613472bee4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"112e51bd8bb2f9df4a48143c48e113ba20fc2c55b2ce2e5d52c922613472bee4","first_computed_at":"2026-07-05T05:49:26.322349Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:49:26.322349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hBR5vxmdlYhK3fCTUvxZNdohPUg5i9wqjQ4HgNUrV0LAEf2Fv722cbF0snN+uRSGD1opNfooj7ELfaMEX7FsBg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:49:26.322857Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.03372","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d10151be1f93380fb852b0a574d88687e9627b2054a98f19f14611a6c26cd392","sha256:4a2d65532ac6d61c97337c7f1bfb52b64a8fb42f71262354a3ed8044ef17017d"],"state_sha256":"05af57b19ce1b2ed0493b7f2bfc3b9b5162f36cbd54f7ec6e09fc196c5ab49f8"}