{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KSGAX7636TRD6FS5GIBKX24BQY","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":"a7f92f8b5a640ea043c8192fa8c205321cdf80e7405bbafb0551e268c5fb4135","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-10-10T04:07:52Z","title_canon_sha256":"f75047666028a1424ede5177a1705895de4885aad9b29a49f1d246162c08e84e"},"schema_version":"1.0","source":{"id":"1710.03396","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.03396","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"arxiv_version","alias_value":"1710.03396v1","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.03396","created_at":"2026-05-18T00:33:12Z"},{"alias_kind":"pith_short_12","alias_value":"KSGAX7636TRD","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"KSGAX7636TRD6FS5","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"KSGAX763","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:1f700e514038de4abe4f1235bbdc64db3838f4fce10770908bd83aefa869f978","target":"graph","created_at":"2026-05-18T00:33:12Z","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":"Dynamic Contrast-Enhanced Magnetic Resonance Imaging (DCE-MRI) is a valuable tool to localize, characterize, and evaluate anomalous prostate tissue. Ultrafast gradient-echo acquisitions of MRI volumes are generated at regular time intervals while the patient receives a paramagnetic contrast agent. The result is a time series where each voxel exhibits a particular behavior of contrast uptake (wash-in) and posterior wash-out. In this work, a segmentation method is proposed that groups together neighboring voxels with similar contrast wash-out responses, using a variant of the region growing Grow","authors_text":"Antonio Rueda-Toicen, Leonardo Cordero, Miguel Mart\\'in-Landrove, Wuilian Torres","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-10-10T04:07:52Z","title":"Segmentation of Dynamic Contrast-Enhanced Magnetic Resonance Images of the Prostate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.03396","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":"sha256:274ab130701a53272c9b73dc92730dc70de1b7155f3a375901164e23bdc10e10","target":"record","created_at":"2026-05-18T00:33:12Z","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":"a7f92f8b5a640ea043c8192fa8c205321cdf80e7405bbafb0551e268c5fb4135","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-10-10T04:07:52Z","title_canon_sha256":"f75047666028a1424ede5177a1705895de4885aad9b29a49f1d246162c08e84e"},"schema_version":"1.0","source":{"id":"1710.03396","kind":"arxiv","version":1}},"canonical_sha256":"548c0bffdbf4e23f165d3202abeb81862157f68bc3783303e2d4118cf93568d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"548c0bffdbf4e23f165d3202abeb81862157f68bc3783303e2d4118cf93568d2","first_computed_at":"2026-05-18T00:33:12.060038Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:12.060038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"73sQIcpX8mNRb4IQaVR166c69viczYDoqJY+D5yhFHEeK7r2RHLS/ad64VxQZFcDePV+rCM+iWO4vx8VI32PAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:12.060732Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.03396","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:274ab130701a53272c9b73dc92730dc70de1b7155f3a375901164e23bdc10e10","sha256:1f700e514038de4abe4f1235bbdc64db3838f4fce10770908bd83aefa869f978"],"state_sha256":"f36c650f7040883e732b6c15145ebe2ee8c2739ad6744eb2daf4f836b2696cc5"}