{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ZSNBO6VLIQMAU3VOL2SLRC3STT","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":"0fda9ff284164762fb6dd77d0b0fb27da4f94a4253f7fe46533c7801ef8f08ba","cross_cats_sorted":["eess.SP","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2018-11-19T09:11:31Z","title_canon_sha256":"112db7e8758cce2b4a9ea7afe79b93369119ef3ca0992272a107568fde97f941"},"schema_version":"1.0","source":{"id":"1811.07564","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.07564","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"arxiv_version","alias_value":"1811.07564v2","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.07564","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"pith_short_12","alias_value":"ZSNBO6VLIQMA","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"ZSNBO6VLIQMAU3VO","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"ZSNBO6VL","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:d5cdceeddf3f8cf8d1ac2912a70a27e26d6d16338dfe5089e0cfed697d029e64","target":"graph","created_at":"2026-05-17T23:52:51Z","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":"Magnetic resonance fingerprinting (MRF) is able to estimate multiple quantitative tissue parameters from a relatively short acquisition. The main characteristic of an MRF sequence is the simultaneous application of (a) transient states excitation and (b) highly undersampled $k$-space. Despite the promising empirical results obtained with MRF, no work has appeared that formally describes the combined impact of these two aspects on the reconstruction accuracy. In this paper, a mathematical model is derived that directly relates the time varying RF excitation and the $k$-space sampling to the spa","authors_text":"Alessandro Sbrizzi, Christiaan C. Stolk","cross_cats":["eess.SP","math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2018-11-19T09:11:31Z","title":"Understanding the combined effect of $k$-space undersampling and transient states excitation in MR Fingerprinting reconstructions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.07564","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":"sha256:382a3d0fb81c914e663fb2930d7b75821d07b7e83e6be55c2e8a58f7d87f7f68","target":"record","created_at":"2026-05-17T23:52:51Z","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":"0fda9ff284164762fb6dd77d0b0fb27da4f94a4253f7fe46533c7801ef8f08ba","cross_cats_sorted":["eess.SP","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2018-11-19T09:11:31Z","title_canon_sha256":"112db7e8758cce2b4a9ea7afe79b93369119ef3ca0992272a107568fde97f941"},"schema_version":"1.0","source":{"id":"1811.07564","kind":"arxiv","version":2}},"canonical_sha256":"cc9a177aab44180a6eae5ea4b88b729cd506769088d6db620fb3496dd5303694","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc9a177aab44180a6eae5ea4b88b729cd506769088d6db620fb3496dd5303694","first_computed_at":"2026-05-17T23:52:51.529665Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:51.529665Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YBihkNTiMDEIvJ5xymgZblwnspLaG0oeX/yM+fbIvu3idpMQM4I+gOErxGWjFp144YsBv4gxPKul6yojhw05Cw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:51.530430Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.07564","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:382a3d0fb81c914e663fb2930d7b75821d07b7e83e6be55c2e8a58f7d87f7f68","sha256:d5cdceeddf3f8cf8d1ac2912a70a27e26d6d16338dfe5089e0cfed697d029e64"],"state_sha256":"619443ab00ee6d08af559f2122c0f3cfc007761327f80472fc9fd298c4b80cdd"}