{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:ZP43MHL435TGN2A5YLTAMW7QD3","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":"e19146d6cd45b92249b18feb7cf8347b385bf7b6a824dd065cd67e3a488c1a7c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-05-23T12:53:58Z","title_canon_sha256":"d2fa2e175fd05e032740045329f697fbcbd26d5f6ccc435ad9e19e9e8875535b"},"schema_version":"1.0","source":{"id":"2305.14018","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.14018","created_at":"2026-07-05T06:13:21Z"},{"alias_kind":"arxiv_version","alias_value":"2305.14018v2","created_at":"2026-07-05T06:13:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.14018","created_at":"2026-07-05T06:13:21Z"},{"alias_kind":"pith_short_12","alias_value":"ZP43MHL435TG","created_at":"2026-07-05T06:13:21Z"},{"alias_kind":"pith_short_16","alias_value":"ZP43MHL435TGN2A5","created_at":"2026-07-05T06:13:21Z"},{"alias_kind":"pith_short_8","alias_value":"ZP43MHL4","created_at":"2026-07-05T06:13:21Z"}],"graph_snapshots":[{"event_id":"sha256:657be9a34dcafcf8e3d1daca7d72bdd1915f2e2f311ef0baed1385c5131eb5c1","target":"graph","created_at":"2026-07-05T06:13:21Z","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/2305.14018/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Sparse algorithms offer great flexibility for multi-view temporal perception tasks. In this paper, we present an enhanced version of Sparse4D, in which we improve the temporal fusion module by implementing a recursive form of multi-frame feature sampling. By effectively decoupling image features and structured anchor features, Sparse4D enables a highly efficient transformation of temporal features, thereby facilitating temporal fusion solely through the frame-by-frame transmission of sparse features. The recurrent temporal fusion approach provides two main benefits. Firstly, it reduces the com","authors_text":"Lichao Huang, Tianwei Lin, Xuewu Lin, Zhizhong Su, Zixiang Pei","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-05-23T12:53:58Z","title":"Sparse4D v2: Recurrent Temporal Fusion with Sparse Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.14018","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":"sha256:46ff5c36a00fa2502843394811aa29656fc1beecc8dda0dc2ce2fc8be6724488","target":"record","created_at":"2026-07-05T06:13:21Z","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":"e19146d6cd45b92249b18feb7cf8347b385bf7b6a824dd065cd67e3a488c1a7c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-05-23T12:53:58Z","title_canon_sha256":"d2fa2e175fd05e032740045329f697fbcbd26d5f6ccc435ad9e19e9e8875535b"},"schema_version":"1.0","source":{"id":"2305.14018","kind":"arxiv","version":2}},"canonical_sha256":"cbf9b61d7cdf6666e81dc2e6065bf01ee73f3e663e84c87ce44fcdc3a4772dfc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cbf9b61d7cdf6666e81dc2e6065bf01ee73f3e663e84c87ce44fcdc3a4772dfc","first_computed_at":"2026-07-05T06:13:21.773332Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:13:21.773332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TW7STdyXDiEUNJvX0wBkADHA2OvsaZEwITHu4NZFfVRyKSpup/teQRrI/Ih7tKLbVInmwzrzi9p9eMByr/dhDw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:13:21.773766Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.14018","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46ff5c36a00fa2502843394811aa29656fc1beecc8dda0dc2ce2fc8be6724488","sha256:657be9a34dcafcf8e3d1daca7d72bdd1915f2e2f311ef0baed1385c5131eb5c1"],"state_sha256":"1e0a6d184f2e06d615f3180f0a4086b89ff236e91b31e4bd5f95ecb7ba5d95cf"}