{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:NHUBOTFIRCYOKJNCKAIT2GIT5D","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":"2253640dd1769badb5b5982ebffb577fdb9c03114b538173fb32a08090341aa0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2013-02-26T21:36:01Z","title_canon_sha256":"2106674a561516b2ae124d02c4f92575a1121ce2c3cc7415a3b839a7011412e6"},"schema_version":"1.0","source":{"id":"1302.6605","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.6605","created_at":"2026-05-18T03:12:11Z"},{"alias_kind":"arxiv_version","alias_value":"1302.6605v2","created_at":"2026-05-18T03:12:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.6605","created_at":"2026-05-18T03:12:11Z"},{"alias_kind":"pith_short_12","alias_value":"NHUBOTFIRCYO","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NHUBOTFIRCYOKJNC","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NHUBOTFI","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:0be514c45bc060afab87d9e3cd27b5bf70833979ae602150456c1bb30ebef787","target":"graph","created_at":"2026-05-18T03:12:11Z","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":"Endogenous chemical exchange saturation transfer (CEST) effects are always diluted by competing effects such as direct water proton saturation (spillover) and macromolecular magnetization transfer (MT). This leads to T2-and MT-shine-through effects in the actual biochemical contrast of CEST. Therefore, a simple evaluation algorithm which corrects the CEST signal was searched for. By employing a recent eigenspace theory valid for spinlock and continuous wave (cw) CEST we predict that the inverse Z-spectrum is beneficial to Z-spectrum itself. Based on this we propose a new spillover- and MT-corr","authors_text":"Daniel F. Gochberg, Imad S. Khan, John C. Gore, Junzhong Xu, Moritz Zaiss, Peter Bachert, Robert J. Singer, Steffen Goerke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2013-02-26T21:36:01Z","title":"Inverse Z-spectrum analysis for MT- and spillover-corrected and T1-compensated steady-state pulsed CEST-MRI - application to pH-weighted MRI of acute stroke"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.6605","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":"sha256:7a4bbd3921f896a60f325f8b08310ced128a427dd49132e03e6481ceaea84a78","target":"record","created_at":"2026-05-18T03:12:11Z","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":"2253640dd1769badb5b5982ebffb577fdb9c03114b538173fb32a08090341aa0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2013-02-26T21:36:01Z","title_canon_sha256":"2106674a561516b2ae124d02c4f92575a1121ce2c3cc7415a3b839a7011412e6"},"schema_version":"1.0","source":{"id":"1302.6605","kind":"arxiv","version":2}},"canonical_sha256":"69e8174ca888b0e525a250113d1913e8e2e96d5d6c98c361daa66044e6427f0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"69e8174ca888b0e525a250113d1913e8e2e96d5d6c98c361daa66044e6427f0e","first_computed_at":"2026-05-18T03:12:11.782162Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:12:11.782162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3C+C8HnNydUPm8KSbvecUwjdsKIhut8WmMt1s5SzsixVBjStDdFA8MewIBKlbihkWhHfUx3MFzrtnQCmVeenAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:12:11.782877Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.6605","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a4bbd3921f896a60f325f8b08310ced128a427dd49132e03e6481ceaea84a78","sha256:0be514c45bc060afab87d9e3cd27b5bf70833979ae602150456c1bb30ebef787"],"state_sha256":"0164cf58262f053cecb4dbf3dc59ed6bfc22d1067214a0ca311d74f87d260b3d"}