{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:SGFZVG72S6VXJULN4DODI5KMJW","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":"e2ef2d83d465d7e098d9d2e5700a0609ad58f5223447f7cf8bec4aae8ebaa944","cross_cats_sorted":["cs.AI","cs.LG","eess.SP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-11-11T22:35:56Z","title_canon_sha256":"4c23cef453bab73cd5eec5cf94e40435e3e5d993dab0880502c126bd9d24f49e"},"schema_version":"1.0","source":{"id":"2211.06502","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.06502","created_at":"2026-07-05T05:15:25Z"},{"alias_kind":"arxiv_version","alias_value":"2211.06502v1","created_at":"2026-07-05T05:15:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.06502","created_at":"2026-07-05T05:15:25Z"},{"alias_kind":"pith_short_12","alias_value":"SGFZVG72S6VX","created_at":"2026-07-05T05:15:25Z"},{"alias_kind":"pith_short_16","alias_value":"SGFZVG72S6VXJULN","created_at":"2026-07-05T05:15:25Z"},{"alias_kind":"pith_short_8","alias_value":"SGFZVG72","created_at":"2026-07-05T05:15:25Z"}],"graph_snapshots":[{"event_id":"sha256:7a2890cff6ba9c04cc4f7a85b925d0f0e40f77bf5206d086e75f6b44cb9c3f0a","target":"graph","created_at":"2026-07-05T05:15:25Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2211.06502/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Superresolution T2-weighted fetal-brain magnetic-resonance imaging (FBMRI) traditionally relies on the availability of several orthogonal low-resolution series of 2-dimensional thick slices (volumes). In practice, only a few low-resolution volumes are acquired. Thus, optimization-based image-reconstruction methods require strong regularization using hand-crafted regularizers (e.g., TV). Yet, due to in utero fetal motion and the rapidly changing fetal brain anatomy, the acquisition of the high-resolution images that are required to train supervised learning methods is difficult. In this paper, ","authors_text":"H\\'el\\`ene Lajous, Kay L\\\"achler, Meritxell Bach Cuadra, Michael Unser, Pol del Aguila Pla","cross_cats":["cs.AI","cs.LG","eess.SP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-11-11T22:35:56Z","title":"Self-Supervised Isotropic Superresolution Fetal Brain MRI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.06502","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":"sha256:290ac19e870d8cc07d8d26b9816399f33e98f9f15487686c8f5456f291721a71","target":"record","created_at":"2026-07-05T05:15:25Z","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":"e2ef2d83d465d7e098d9d2e5700a0609ad58f5223447f7cf8bec4aae8ebaa944","cross_cats_sorted":["cs.AI","cs.LG","eess.SP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-11-11T22:35:56Z","title_canon_sha256":"4c23cef453bab73cd5eec5cf94e40435e3e5d993dab0880502c126bd9d24f49e"},"schema_version":"1.0","source":{"id":"2211.06502","kind":"arxiv","version":1}},"canonical_sha256":"918b9a9bfa97ab74d16de0dc34754c4daf894fc37ead973a6d18e53dd1e6a14c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"918b9a9bfa97ab74d16de0dc34754c4daf894fc37ead973a6d18e53dd1e6a14c","first_computed_at":"2026-07-05T05:15:25.750634Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:15:25.750634Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7+AKxIzKfCXgkyvhbiH/ho411accYogvSRoDvwEPbiEdq9HVLCTVq6VWzf0mV8PtkHaf171IoQd0K+XiwbQADQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:15:25.750994Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.06502","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:290ac19e870d8cc07d8d26b9816399f33e98f9f15487686c8f5456f291721a71","sha256:7a2890cff6ba9c04cc4f7a85b925d0f0e40f77bf5206d086e75f6b44cb9c3f0a"],"state_sha256":"dc479378e64c335b3620c880bd85bf6387c9eb8de6c35ab0d09f98348c293aa2"}