{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:B54ZO4OGIJWJN2L6MSA6AIGC7D","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":"c4d52dfb8e1ccdf81db3ea9f7de7e631a44d13f353177ebf72e7fb6d8c7b91e3","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-06-11T09:57:35Z","title_canon_sha256":"be781af0f174011b0aad4f616ff96579981ec9bade059ceb5e02de5cc37fb68e"},"schema_version":"1.0","source":{"id":"1906.04467","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.04467","created_at":"2026-05-17T23:43:39Z"},{"alias_kind":"arxiv_version","alias_value":"1906.04467v1","created_at":"2026-05-17T23:43:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.04467","created_at":"2026-05-17T23:43:39Z"},{"alias_kind":"pith_short_12","alias_value":"B54ZO4OGIJWJ","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"B54ZO4OGIJWJN2L6","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"B54ZO4OG","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:ca09259b87f48e05e1ac23582a545f1cb07bb3cfa9d45a947db164d8f036deea","target":"graph","created_at":"2026-05-17T23:43:39Z","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":"Computed tomography (CT) is a widely used imaging modality for medical diagnosis and treatment. In electroencephalography (EEG), CT imaging is necessary for co-registering with magnetic resonance imaging (MRI) and for creating more accurate head models for the brain electrical activity due to better representation of bone anatomy. Unfortunately, CT imaging exposes patients to potentially harmful sources of ionizing radiation. Image synthesis methods present a solution for avoiding extra radiation exposure. In this paper, we perform image synthesis to create a realistic, synthetic CT image from","authors_text":"Andreas D. Lauritzen, John A. Onofrey, Sergei Turovets, Xenophon Papademetris","cross_cats":["eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-06-11T09:57:35Z","title":"Evaluation of CT Image Synthesis Methods:From Atlas-based Registration to Deep Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.04467","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:a0cced783da4193bbbf6ecac10f6710ed1fdddff03c1a980463a2e4f388b7a48","target":"record","created_at":"2026-05-17T23:43:39Z","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":"c4d52dfb8e1ccdf81db3ea9f7de7e631a44d13f353177ebf72e7fb6d8c7b91e3","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-06-11T09:57:35Z","title_canon_sha256":"be781af0f174011b0aad4f616ff96579981ec9bade059ceb5e02de5cc37fb68e"},"schema_version":"1.0","source":{"id":"1906.04467","kind":"arxiv","version":1}},"canonical_sha256":"0f799771c6426c96e97e6481e020c2f8e3e2193b18e9da694afc0d461f80254a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f799771c6426c96e97e6481e020c2f8e3e2193b18e9da694afc0d461f80254a","first_computed_at":"2026-05-17T23:43:39.182925Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:39.182925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kXpINjVs9g9HwB3wab2O04AKDLJF5QdeLb9Zvt9OdBxt7n4FHv/C5QH3/z9TS2wjFGnjE9nC+FKdOd0gai0EAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:39.183547Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.04467","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0cced783da4193bbbf6ecac10f6710ed1fdddff03c1a980463a2e4f388b7a48","sha256:ca09259b87f48e05e1ac23582a545f1cb07bb3cfa9d45a947db164d8f036deea"],"state_sha256":"e475095d436b40cc996f050645b06b6ccde28eb3eb89ee57e534e82954c76766"}