{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:6A7NSGUD3OKMF5Y56X2SO5VMVX","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":"6021861dad7b90c07a4ca4c486a79b86d6c9bde6746f0b88674fdfc714b5528a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2025-03-20T20:58:07Z","title_canon_sha256":"36d1d0b7f5321259a4cc9248d3d7bd2fb1e1b08618b2010d86a0aedc3955ec26"},"schema_version":"1.0","source":{"id":"2503.16706","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.16706","created_at":"2026-07-05T10:36:47Z"},{"alias_kind":"arxiv_version","alias_value":"2503.16706v1","created_at":"2026-07-05T10:36:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.16706","created_at":"2026-07-05T10:36:47Z"},{"alias_kind":"pith_short_12","alias_value":"6A7NSGUD3OKM","created_at":"2026-07-05T10:36:47Z"},{"alias_kind":"pith_short_16","alias_value":"6A7NSGUD3OKMF5Y5","created_at":"2026-07-05T10:36:47Z"},{"alias_kind":"pith_short_8","alias_value":"6A7NSGUD","created_at":"2026-07-05T10:36:47Z"}],"graph_snapshots":[{"event_id":"sha256:2a818fd3fceac28607e089ed56ff27d3498e0f9221e07ed642283fdda387b872","target":"graph","created_at":"2026-07-05T10:36:47Z","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/2503.16706/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A recently proposed scatter-window and deep learning-based attenuation compensation (AC) method for myocardial perfusion imaging (MPI) by single-photon emission computed tomography (SPECT), namely CTLESS, demonstrated promising performance on the clinical task of myocardial perfusion defect detection with retrospective data acquired on SPECT scanners from a single vendor. For clinical translation of CTLESS, it is important to assess the generalizability of CTLESS across different SPECT scanners. For this purpose, we conducted a virtual imaging trial, titled in silico imaging trial to assess ge","authors_text":"Abhinav K. Jha, Barry A. Siegel, Nancy A. Obuchowski, Nu Ri Choi, Zezhang Yang, Zitong Yu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2025-03-20T20:58:07Z","title":"ISIT-GEN: An in silico imaging trial to assess the inter-scanner generalizability of CTLESS for myocardial perfusion SPECT on defect-detection task"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.16706","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:c433c37f19833d3b64ee45bbde954a2348b1ec47ea9603b6a1b89a18ea1cf88c","target":"record","created_at":"2026-07-05T10:36:47Z","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":"6021861dad7b90c07a4ca4c486a79b86d6c9bde6746f0b88674fdfc714b5528a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2025-03-20T20:58:07Z","title_canon_sha256":"36d1d0b7f5321259a4cc9248d3d7bd2fb1e1b08618b2010d86a0aedc3955ec26"},"schema_version":"1.0","source":{"id":"2503.16706","kind":"arxiv","version":1}},"canonical_sha256":"f03ed91a83db94c2f71df5f52776acaded1bf6b014bc684c044d3e2cfd1a5dae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f03ed91a83db94c2f71df5f52776acaded1bf6b014bc684c044d3e2cfd1a5dae","first_computed_at":"2026-07-05T10:36:47.885545Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:36:47.885545Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ORhBqn1LgHHHUtBWG7XsHi8V82AJHyCKMEiPphRlRPDPRPggj7AG2QGWkWP64XkYw8N4fyC3Kt1+w285Di0PAA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:36:47.886075Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.16706","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c433c37f19833d3b64ee45bbde954a2348b1ec47ea9603b6a1b89a18ea1cf88c","sha256:2a818fd3fceac28607e089ed56ff27d3498e0f9221e07ed642283fdda387b872"],"state_sha256":"512455d9b50e3b8b1fdf74ed5463a6ff0084a5205e8bf1ddb61e14501579349b"}