{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:A5EMCCTEDQDPDI7JTK56TKUQPI","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":"fedd0d23a1eee560174cab9c1f450674b394f0f77fd12a40ee9e98ac39ec7bdd","cross_cats_sorted":[],"license":"","primary_cat":"physics.med-ph","submitted_at":"2004-12-17T14:49:10Z","title_canon_sha256":"be5aaf24c1602ada882efa87dcc986ae70b7b7ad52dffe4005464f4ff78d8a7c"},"schema_version":"1.0","source":{"id":"physics/0412112","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0412112","created_at":"2026-05-18T00:58:55Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0412112v1","created_at":"2026-05-18T00:58:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0412112","created_at":"2026-05-18T00:58:55Z"},{"alias_kind":"pith_short_12","alias_value":"A5EMCCTEDQDP","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"A5EMCCTEDQDPDI7J","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"A5EMCCTE","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:92cc97fd2eaf4cda7ba793bdaf5853c9a862cbeea716a346752680ccb7034457","target":"graph","created_at":"2026-05-18T00:58:55Z","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"},"paper":{"abstract_excerpt":"We recently demonstrated the value of reconstructing SPECT data with fully 3D Monte Carlo reconstruction (F3DMC), in terms of spatial resolution and quantification. This was shown on a small cubic phantom (64 projections 10 x 10) in some idealistic configurations. The goals of the present study were to assess the effect of noise and modeling errors on the reliability of F3DMC, to propose and evaluate strategies for reducing the noise in the projector, and to demonstrate the feasibility of F3DMC for a dataset with realistic dimensions. A small cubic phantom and a realistic Jaszczak phantom data","authors_text":"D. Lazaro, I. Buvat, V. Breton (LPC-Clermont), Z. El Bitar (LPC-Clermont)","cross_cats":[],"headline":"","license":"","primary_cat":"physics.med-ph","submitted_at":"2004-12-17T14:49:10Z","title":"Effect of noise and modeling errors on the reliability of fully 3D Monte Carlo reconstruction in SPECT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0412112","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":"sha256:999e387c8ffff94a8924b79fa27ad06b38c77f81c5216e22203317b3b2b61daf","target":"record","created_at":"2026-05-18T00:58:55Z","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":"fedd0d23a1eee560174cab9c1f450674b394f0f77fd12a40ee9e98ac39ec7bdd","cross_cats_sorted":[],"license":"","primary_cat":"physics.med-ph","submitted_at":"2004-12-17T14:49:10Z","title_canon_sha256":"be5aaf24c1602ada882efa87dcc986ae70b7b7ad52dffe4005464f4ff78d8a7c"},"schema_version":"1.0","source":{"id":"physics/0412112","kind":"arxiv","version":1}},"canonical_sha256":"0748c10a641c06f1a3e99abbe9aa907a225340319ed38bdd41373e671baebf60","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0748c10a641c06f1a3e99abbe9aa907a225340319ed38bdd41373e671baebf60","first_computed_at":"2026-05-18T00:58:55.921902Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:55.921902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y+NAl8DIUflRpF4EdeKscdWwrSB1ugq0QQKQZOLZt5hudcY78wzI6DObQW1D9AHWM43AC7ZqYlhb9H3Jj5lHDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:55.922433Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0412112","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:999e387c8ffff94a8924b79fa27ad06b38c77f81c5216e22203317b3b2b61daf","sha256:92cc97fd2eaf4cda7ba793bdaf5853c9a862cbeea716a346752680ccb7034457"],"state_sha256":"15d295284d03b003a65564f4de65570831a6a200487e14e348f96a320f23a732"}