{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:WP7UW5GGPO5URZON7UDP6WEWVS","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":"ae237585b95d7888ff7593caf85c897860f037aec276523e9fe0f5c5a36a1690","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2021-11-18T12:02:59Z","title_canon_sha256":"24779c947be30f0415d83d0b5705cf6b39db33b0538b91cba8fcdef34e3c26f9"},"schema_version":"1.0","source":{"id":"2111.09650","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.09650","created_at":"2026-07-05T03:33:13Z"},{"alias_kind":"arxiv_version","alias_value":"2111.09650v1","created_at":"2026-07-05T03:33:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.09650","created_at":"2026-07-05T03:33:13Z"},{"alias_kind":"pith_short_12","alias_value":"WP7UW5GGPO5U","created_at":"2026-07-05T03:33:13Z"},{"alias_kind":"pith_short_16","alias_value":"WP7UW5GGPO5URZON","created_at":"2026-07-05T03:33:13Z"},{"alias_kind":"pith_short_8","alias_value":"WP7UW5GG","created_at":"2026-07-05T03:33:13Z"}],"graph_snapshots":[{"event_id":"sha256:61d1df07385fc450b8b23da8da103346aa570700eff404d140bcb2e8b9eaf2af","target":"graph","created_at":"2026-07-05T03:33:13Z","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/2111.09650/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Coronary computed tomography angiography (CCTA) provides detailed an-atomical information on all chambers of the heart. Existing segmentation tools can label the gross anatomy, but addition of application-specific labels can require detailed and often manual refinement. We developed a U-Net based framework to i) extrapolate a new label from existing labels, and ii) parcellate one label into multiple labels, both using label-to-label mapping, to create a desired segmentation that could then be learnt directly from the image (image- to-label mapping). This approach only required manual correctio","authors_text":"Alistair A. Young, David E. Newby, Hao Xu, Michelle C. Williams, Steven A. Niederer, Steven E. Williams","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2021-11-18T12:02:59Z","title":"Whole Heart Anatomical Refinement from CCTA using Extrapolation and Parcellation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.09650","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":"sha256:25f4fa9bc5cee0925b97342ba6e2949b32a686febd0acb633dae3605b3e9fad5","target":"record","created_at":"2026-07-05T03:33:13Z","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":"ae237585b95d7888ff7593caf85c897860f037aec276523e9fe0f5c5a36a1690","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2021-11-18T12:02:59Z","title_canon_sha256":"24779c947be30f0415d83d0b5705cf6b39db33b0538b91cba8fcdef34e3c26f9"},"schema_version":"1.0","source":{"id":"2111.09650","kind":"arxiv","version":1}},"canonical_sha256":"b3ff4b74c67bbb48e5cdfd06ff5896ac9083ee52093d238b3394d7c8e227d94d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3ff4b74c67bbb48e5cdfd06ff5896ac9083ee52093d238b3394d7c8e227d94d","first_computed_at":"2026-07-05T03:33:13.703506Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:33:13.703506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s0nMKTGnKNIOuZiAaFjJaY/RcRNDuWnJeiIeSarE06V//zXdYlMN6tKalXNZBiHFnNfWD1JSQhy6FGHnLZEyDg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:33:13.704199Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.09650","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25f4fa9bc5cee0925b97342ba6e2949b32a686febd0acb633dae3605b3e9fad5","sha256:61d1df07385fc450b8b23da8da103346aa570700eff404d140bcb2e8b9eaf2af"],"state_sha256":"50ee643b840e8a8edd4d246b370755973d90f8882aacd1e188da54316ca010fe"}