{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6U6PVJSTFJVTABLW3TCLOEMZLR","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":"320ab19a5b6bc513926e513e1b5e6e5d7521b4d4067a5194dcd69705ffa37a62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-05-01T10:43:17Z","title_canon_sha256":"50d590b76b4f786a9b2208559df0df69b5b386f5018413209b5c1016afb28c4d"},"schema_version":"1.0","source":{"id":"1705.00463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.00463","created_at":"2026-05-17T23:59:10Z"},{"alias_kind":"arxiv_version","alias_value":"1705.00463v1","created_at":"2026-05-17T23:59:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.00463","created_at":"2026-05-17T23:59:10Z"},{"alias_kind":"pith_short_12","alias_value":"6U6PVJSTFJVT","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6U6PVJSTFJVTABLW","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6U6PVJST","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:792c3111cb7de24fb6ebd6e90a30c634439ea96811fde3b15f19017a9a42fe67","target":"graph","created_at":"2026-05-17T23:59:10Z","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":"High-resolution three-dimensional (3D) cardiovascular magnetic resonance (CMR) is a valuable medical imaging technique, but its widespread application in clinical practice is hampered by long acquisition times. Here we present a novel compressed sensing (CS) reconstruction approach using shearlets as a sparsifying transform allowing for fast 3D CMR (3DShearCS). Shearlets are mathematically optimal for a simplified model of natural images and have been proven to be more efficient than classical systems such as wavelets. Data is acquired with a 3D Radial Phase Encoding (RPE) trajectory and an it","authors_text":"Christoph Kolbitsch, Gitta Kutyniok, Jackie Ma, Jeanette Schulz-Menger, Maximilian M\\\"arz, Stephanie Funk, Tobias Schaeffter","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-05-01T10:43:17Z","title":"Shearlet-based compressed sensing for fast 3D cardiac MR imaging using iterative reweighting"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00463","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:d39eec49fab25833fbf1eb8402af41980a8dad15fd58cb4100ccb819d360f2cb","target":"record","created_at":"2026-05-17T23:59:10Z","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":"320ab19a5b6bc513926e513e1b5e6e5d7521b4d4067a5194dcd69705ffa37a62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2017-05-01T10:43:17Z","title_canon_sha256":"50d590b76b4f786a9b2208559df0df69b5b386f5018413209b5c1016afb28c4d"},"schema_version":"1.0","source":{"id":"1705.00463","kind":"arxiv","version":1}},"canonical_sha256":"f53cfaa6532a6b300576dcc4b711995c66f3aa4e09edbf8d37f92ae09da2c631","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f53cfaa6532a6b300576dcc4b711995c66f3aa4e09edbf8d37f92ae09da2c631","first_computed_at":"2026-05-17T23:59:10.302298Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:10.302298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KwGkYB/5swnf4lzGuGFr1gO6303nA77RArKPjF555CBGl+jZIC+NMQcIHBpd34ka7MfY+Axd2RYB473P2ky/AQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:10.302755Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.00463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d39eec49fab25833fbf1eb8402af41980a8dad15fd58cb4100ccb819d360f2cb","sha256:792c3111cb7de24fb6ebd6e90a30c634439ea96811fde3b15f19017a9a42fe67"],"state_sha256":"9ca81859594526fae61d2f81676e9d13fcdd29ab9622f1c3b5c4f5e07615fac9"}