{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:AGIO7JGBQAMO5BCJB3AB5OBG6C","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":"dbc964233697e9fb50d397831d00ad91351541f82e4c3f3084335c7ebe35d044","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2023-01-18T21:06:48Z","title_canon_sha256":"099332894ccf288611393238be0c24cd23710b9adae603282aae4feb3d07f2e6"},"schema_version":"1.0","source":{"id":"2301.07787","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.07787","created_at":"2026-07-05T07:02:26Z"},{"alias_kind":"arxiv_version","alias_value":"2301.07787v2","created_at":"2026-07-05T07:02:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.07787","created_at":"2026-07-05T07:02:26Z"},{"alias_kind":"pith_short_12","alias_value":"AGIO7JGBQAMO","created_at":"2026-07-05T07:02:26Z"},{"alias_kind":"pith_short_16","alias_value":"AGIO7JGBQAMO5BCJ","created_at":"2026-07-05T07:02:26Z"},{"alias_kind":"pith_short_8","alias_value":"AGIO7JGB","created_at":"2026-07-05T07:02:26Z"}],"graph_snapshots":[{"event_id":"sha256:6161b8f67a70a83e17d61b66cfbf4b7c916706a21bba1ceda4b5f46e79243812","target":"graph","created_at":"2026-07-05T07:02:26Z","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/2301.07787/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ultrasound computed tomography (USCT) is an emerging medical imaging modality that holds great promise for improving human health. Full-waveform inversion (FWI)-based image reconstruction methods account for the relevant wave physics to produce high spatial resolution images of the acoustic properties of the breast tissues. A practical USCT design employs a circular ring-array comprised of elevation-focused ultrasonic transducers, and volumentric imaging is achieved by translating the ring-array orthogonally to the imaging plane. In commonly deployed slice-by-slice (SBS) reconstruction approac","authors_text":"Fu Li, Mark A. Anastasio, Nebojsa Duric, Umberto Villa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2023-01-18T21:06:48Z","title":"A forward model incorporating elevation-focused transducer properties for 3D full-waveform inversion in ultrasound computed tomography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.07787","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":"sha256:377d43edfdb3647db91b74ef0d878e59ad7a801472662ef8759d2e45e9d70e9e","target":"record","created_at":"2026-07-05T07:02:26Z","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":"dbc964233697e9fb50d397831d00ad91351541f82e4c3f3084335c7ebe35d044","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2023-01-18T21:06:48Z","title_canon_sha256":"099332894ccf288611393238be0c24cd23710b9adae603282aae4feb3d07f2e6"},"schema_version":"1.0","source":{"id":"2301.07787","kind":"arxiv","version":2}},"canonical_sha256":"0190efa4c18018ee84490ec01eb826f087b41e7efc9264e5b319c9357660e76f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0190efa4c18018ee84490ec01eb826f087b41e7efc9264e5b319c9357660e76f","first_computed_at":"2026-07-05T07:02:26.943660Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:02:26.943660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QPonJcJKy9307ZCoz3sJAL5PRXdDuswjopJKCajw4gmellYs2mtfgP5sgfc1fPXzXCoxQHzo85rQcvF6xiPECw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:02:26.944135Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.07787","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:377d43edfdb3647db91b74ef0d878e59ad7a801472662ef8759d2e45e9d70e9e","sha256:6161b8f67a70a83e17d61b66cfbf4b7c916706a21bba1ceda4b5f46e79243812"],"state_sha256":"fe7aa05e1f9f2169d46cc1f26122642e950c1262af8f34383a10903af5a81e39"}