{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:YWWJ6RQPCG6GFPSRO4LGL24WFN","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":"49d6de296349ea294ab6f72d4d3354f68b4c335ef4e3f9913439669e5fea6089","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2024-06-20T17:47:30Z","title_canon_sha256":"e1f55b28bc3e6d4ba14c481876e85ece1cad206e8d257ad3f6a43095b108cd75"},"schema_version":"1.0","source":{"id":"2406.14534","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.14534","created_at":"2026-07-05T10:02:04Z"},{"alias_kind":"arxiv_version","alias_value":"2406.14534v3","created_at":"2026-07-05T10:02:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.14534","created_at":"2026-07-05T10:02:04Z"},{"alias_kind":"pith_short_12","alias_value":"YWWJ6RQPCG6G","created_at":"2026-07-05T10:02:04Z"},{"alias_kind":"pith_short_16","alias_value":"YWWJ6RQPCG6GFPSR","created_at":"2026-07-05T10:02:04Z"},{"alias_kind":"pith_short_8","alias_value":"YWWJ6RQP","created_at":"2026-07-05T10:02:04Z"}],"graph_snapshots":[{"event_id":"sha256:2c32ead53013898db5fc5fd6b4589f3130b9e2cb1580f72f26c6d952efa987bd","target":"graph","created_at":"2026-07-05T10:02:04Z","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/2406.14534/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A comprehensive guidance view for cardiac interventional surgery can be provided by the real-time fusion of the intraoperative 2D images and preoperative 3D volume based on the ultrasound frame-to-volume registration. However, cardiac ultrasound images are characterized by a low signal-to-noise ratio and small differences between adjacent frames, coupled with significant dimension variations between 2D frames and 3D volumes to be registered, resulting in real-time and accurate cardiac ultrasound frame-to-volume registration being a very challenging task. This paper introduces a lightweight end","authors_text":"Baoliang Zhao, Jialun Pei, Jing Qin, Jun Zhou, Long Lei, Pheng-Ann Heng, Yueming Jin, Yuen-Chun Jeremy Teoh","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2024-06-20T17:47:30Z","title":"Epicardium Prompt-guided Real-time Cardiac Ultrasound Frame-to-volume Registration"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.14534","kind":"arxiv","version":3},"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":"sha256:4b3236c06371b9b282dafaa8b710fc1d5cbe7eb3bd3ec6cd69c0e9805e3b5c4e","target":"record","created_at":"2026-07-05T10:02:04Z","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":"49d6de296349ea294ab6f72d4d3354f68b4c335ef4e3f9913439669e5fea6089","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2024-06-20T17:47:30Z","title_canon_sha256":"e1f55b28bc3e6d4ba14c481876e85ece1cad206e8d257ad3f6a43095b108cd75"},"schema_version":"1.0","source":{"id":"2406.14534","kind":"arxiv","version":3}},"canonical_sha256":"c5ac9f460f11bc62be51771665eb962b48f9334870b64d947014c612a0e27d83","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5ac9f460f11bc62be51771665eb962b48f9334870b64d947014c612a0e27d83","first_computed_at":"2026-07-05T10:02:04.458173Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:02:04.458173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ahrGXtYbaw3DIuIBXKlRMItYazQkgEqodciHUzbOGomL5o/lk3Yj6i4Cb2OkGjLkaSz454e10X60pWhB9iDUBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:02:04.458672Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.14534","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b3236c06371b9b282dafaa8b710fc1d5cbe7eb3bd3ec6cd69c0e9805e3b5c4e","sha256:2c32ead53013898db5fc5fd6b4589f3130b9e2cb1580f72f26c6d952efa987bd"],"state_sha256":"2fffaa4c89544aaf3707f1ac64f5afca9f78ecee85bcf77c1c8b6fbd93a7d4ba"}