{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:XPTMFBA64BK6VWQBASARWJFCPO","short_pith_number":"pith:XPTMFBA6","schema_version":"1.0","canonical_sha256":"bbe6c2841ee055eada0104811b24a27bb934b9882287ff1660ce1748fb0dc6f1","source":{"kind":"arxiv","id":"2412.06802","version":1},"attestation_state":"computed","paper":{"title":"Efficient Representations of Cardiac Spatial Heterogeneity in Computational Models","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.TO","authors_text":"Alejandro Nieto Ramos, Elizabeth M. Cherry","submitted_at":"2024-11-24T03:25:46Z","abstract_excerpt":"It is generally assumed that all cells in models of the electrical behavior of cardiac tissue have the same properties. However, there are differences in cardiac cells that are not well characterized but cause spatial heterogeneity of the electrical properties in tissue. Optical mapping can be used to obtain experimental data from cardiac surfaces at high spatial resolution. Variations in model parameters can be defined on a coarser grid than considering each single pixel, which would allow a representation of heterogeneous tissue to be obtained more efficiently. Here, we address how coarse th"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2412.06802","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.TO","submitted_at":"2024-11-24T03:25:46Z","cross_cats_sorted":[],"title_canon_sha256":"717b79d6ddadd1199f853a2304459ac59342d40de5338df71506135cb792efe0","abstract_canon_sha256":"3363f4c05f05de2e11fefe6cd0270f3fd3f2181e0d9f44e28a9559fbace4b963"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:46:57.179328Z","signature_b64":"SgO0sx5t8SykEXmDl/72dK7OOYlIQJzt9q8L3v1aq8sJuDwwBTjsJmV90zf0yHfAwbvi86yyIgmutluARQ7UCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbe6c2841ee055eada0104811b24a27bb934b9882287ff1660ce1748fb0dc6f1","last_reissued_at":"2026-07-05T09:46:57.178806Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:46:57.178806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Efficient Representations of Cardiac Spatial Heterogeneity in Computational Models","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.TO","authors_text":"Alejandro Nieto Ramos, Elizabeth M. Cherry","submitted_at":"2024-11-24T03:25:46Z","abstract_excerpt":"It is generally assumed that all cells in models of the electrical behavior of cardiac tissue have the same properties. However, there are differences in cardiac cells that are not well characterized but cause spatial heterogeneity of the electrical properties in tissue. Optical mapping can be used to obtain experimental data from cardiac surfaces at high spatial resolution. Variations in model parameters can be defined on a coarser grid than considering each single pixel, which would allow a representation of heterogeneous tissue to be obtained more efficiently. Here, we address how coarse th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.06802","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.06802/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2412.06802","created_at":"2026-07-05T09:46:57.178872+00:00"},{"alias_kind":"arxiv_version","alias_value":"2412.06802v1","created_at":"2026-07-05T09:46:57.178872+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.06802","created_at":"2026-07-05T09:46:57.178872+00:00"},{"alias_kind":"pith_short_12","alias_value":"XPTMFBA64BK6","created_at":"2026-07-05T09:46:57.178872+00:00"},{"alias_kind":"pith_short_16","alias_value":"XPTMFBA64BK6VWQB","created_at":"2026-07-05T09:46:57.178872+00:00"},{"alias_kind":"pith_short_8","alias_value":"XPTMFBA6","created_at":"2026-07-05T09:46:57.178872+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO","json":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO.json","graph_json":"https://pith.science/api/pith-number/XPTMFBA64BK6VWQBASARWJFCPO/graph.json","events_json":"https://pith.science/api/pith-number/XPTMFBA64BK6VWQBASARWJFCPO/events.json","paper":"https://pith.science/paper/XPTMFBA6"},"agent_actions":{"view_html":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO","download_json":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO.json","view_paper":"https://pith.science/paper/XPTMFBA6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2412.06802&json=true","fetch_graph":"https://pith.science/api/pith-number/XPTMFBA64BK6VWQBASARWJFCPO/graph.json","fetch_events":"https://pith.science/api/pith-number/XPTMFBA64BK6VWQBASARWJFCPO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO/action/storage_attestation","attest_author":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO/action/author_attestation","sign_citation":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO/action/citation_signature","submit_replication":"https://pith.science/pith/XPTMFBA64BK6VWQBASARWJFCPO/action/replication_record"}},"created_at":"2026-07-05T09:46:57.178872+00:00","updated_at":"2026-07-05T09:46:57.178872+00:00"}