{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:R2O5EKT7RRXJIFZUBJK5BN52LE","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":"79bfe80c6f5635bcfacfd2a44e94825cb478e6790c6731eaba71eaa663652b97","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-10-10T17:36:21Z","title_canon_sha256":"b49cfcecd77b886cdabd9f953d1d5bf4c511866e44f066da31c36ba723fa27f3"},"schema_version":"1.0","source":{"id":"2410.08152","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.08152","created_at":"2026-07-05T09:18:49Z"},{"alias_kind":"arxiv_version","alias_value":"2410.08152v1","created_at":"2026-07-05T09:18:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.08152","created_at":"2026-07-05T09:18:49Z"},{"alias_kind":"pith_short_12","alias_value":"R2O5EKT7RRXJ","created_at":"2026-07-05T09:18:49Z"},{"alias_kind":"pith_short_16","alias_value":"R2O5EKT7RRXJIFZU","created_at":"2026-07-05T09:18:49Z"},{"alias_kind":"pith_short_8","alias_value":"R2O5EKT7","created_at":"2026-07-05T09:18:49Z"}],"graph_snapshots":[{"event_id":"sha256:b2e15897cf9530895169591cd369ec8824273203338e71d392485261fc942b9f","target":"graph","created_at":"2026-07-05T09:18:49Z","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/2410.08152/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Intra-operative 2D-3D registration of X-ray images with pre-operatively acquired CT scans is a crucial procedure in orthopedic surgeries. Anatomical landmarks pre-annotated in the CT volume can be detected in X-ray images to establish 2D-3D correspondences, which are then utilized for registration. However, registration often fails in certain view angles due to poor landmark visibility. We propose a novel method to address this issue by detecting arbitrary landmark points in X-ray images. Our approach represents 3D points as distinct subspaces, formed by feature vectors (referred to as ray emb","authors_text":"Chun Xie, Itaru Kitahara, Pragyan Shrestha, Yuichi Yoshii","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-10-10T17:36:21Z","title":"RayEmb: Arbitrary Landmark Detection in X-Ray Images Using Ray Embedding Subspace"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.08152","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:fe2ca2d666630335f85503b1af9225fe78058225c4e7c80a6c75d5e8ad52ceef","target":"record","created_at":"2026-07-05T09:18:49Z","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":"79bfe80c6f5635bcfacfd2a44e94825cb478e6790c6731eaba71eaa663652b97","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-10-10T17:36:21Z","title_canon_sha256":"b49cfcecd77b886cdabd9f953d1d5bf4c511866e44f066da31c36ba723fa27f3"},"schema_version":"1.0","source":{"id":"2410.08152","kind":"arxiv","version":1}},"canonical_sha256":"8e9dd22a7f8c6e9417340a55d0b7ba5906335ff784014fdd0ffb59575f28f1a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e9dd22a7f8c6e9417340a55d0b7ba5906335ff784014fdd0ffb59575f28f1a8","first_computed_at":"2026-07-05T09:18:49.495601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:18:49.495601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PI4LOYHeRQW506HwCyJy6moiPpPdSRdNBZyVTy/RuPkbzEQsnv77K752xua9pLIOaJ7s5bxJk5plb7ev77ocBA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:18:49.496120Z","signed_message":"canonical_sha256_bytes"},"source_id":"2410.08152","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe2ca2d666630335f85503b1af9225fe78058225c4e7c80a6c75d5e8ad52ceef","sha256:b2e15897cf9530895169591cd369ec8824273203338e71d392485261fc942b9f"],"state_sha256":"4ec2509db4cb978249c6a226bc70271965b66388de71b5bffd53d8c2923fd2be"}