{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:X6LROVFHKLLCT3Z32DY4CWJPRZ","short_pith_number":"pith:X6LROVFH","schema_version":"1.0","canonical_sha256":"bf971754a752d629ef3bd0f1c1592f8e7e2fc920ef2e15096d48cec4e415844f","source":{"kind":"arxiv","id":"2509.13431","version":2},"attestation_state":"computed","paper":{"title":"Fast Electromagnetic and RF Circuit Co-Simulation for Passive Resonator Field Calculation and Optimization in MRI","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Hao Liang, Ming Lu, Xiao Wang, Xinqiang Yan, Yi Gu, Yuankai Huo, Zhonghao Zhang, Zhongliang Zu","submitted_at":"2025-09-16T18:10:07Z","abstract_excerpt":"Passive resonators have been widely used in MRI to manipulate RF field distributions. However, optimizing these structures using full-wave electromagnetic simulations is computationally prohibitive, particularly for large passive resonator arrays with many degrees of freedom. This work presents a co-simulation framework tailored specifically for the analysis and optimization of passive resonators. The framework performs a single full-wave electromagnetic simulation in which the resonator's lumped components are replaced by ports, followed by circuit-level computations to evaluate arbitrary cap"},"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":"2509.13431","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2025-09-16T18:10:07Z","cross_cats_sorted":[],"title_canon_sha256":"d0da99a2f2fc6abc538bb6777b10cd08576215c4f07284171984d3d76d4a3b0b","abstract_canon_sha256":"7d443c08b4116b3500b68663965fd6a32d1b4f8cf59b05aa56af5ba0ba2305d7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:08:29.709159Z","signature_b64":"T+hZvQEfs58LKfh1dhZ/XOXTTJNBe4Jw8ikB4oiMzLjCSIyOAMVYP47AYFSzSle3RPnS6UVdoz9hqS8+QkSwAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf971754a752d629ef3bd0f1c1592f8e7e2fc920ef2e15096d48cec4e415844f","last_reissued_at":"2026-06-10T01:08:29.708206Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:08:29.708206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fast Electromagnetic and RF Circuit Co-Simulation for Passive Resonator Field Calculation and Optimization in MRI","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Hao Liang, Ming Lu, Xiao Wang, Xinqiang Yan, Yi Gu, Yuankai Huo, Zhonghao Zhang, Zhongliang Zu","submitted_at":"2025-09-16T18:10:07Z","abstract_excerpt":"Passive resonators have been widely used in MRI to manipulate RF field distributions. However, optimizing these structures using full-wave electromagnetic simulations is computationally prohibitive, particularly for large passive resonator arrays with many degrees of freedom. This work presents a co-simulation framework tailored specifically for the analysis and optimization of passive resonators. The framework performs a single full-wave electromagnetic simulation in which the resonator's lumped components are replaced by ports, followed by circuit-level computations to evaluate arbitrary cap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.13431","kind":"arxiv","version":2},"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/2509.13431/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":"2509.13431","created_at":"2026-06-10T01:08:29.708343+00:00"},{"alias_kind":"arxiv_version","alias_value":"2509.13431v2","created_at":"2026-06-10T01:08:29.708343+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.13431","created_at":"2026-06-10T01:08:29.708343+00:00"},{"alias_kind":"pith_short_12","alias_value":"X6LROVFHKLLC","created_at":"2026-06-10T01:08:29.708343+00:00"},{"alias_kind":"pith_short_16","alias_value":"X6LROVFHKLLCT3Z3","created_at":"2026-06-10T01:08:29.708343+00:00"},{"alias_kind":"pith_short_8","alias_value":"X6LROVFH","created_at":"2026-06-10T01:08:29.708343+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/X6LROVFHKLLCT3Z32DY4CWJPRZ","json":"https://pith.science/pith/X6LROVFHKLLCT3Z32DY4CWJPRZ.json","graph_json":"https://pith.science/api/pith-number/X6LROVFHKLLCT3Z32DY4CWJPRZ/graph.json","events_json":"https://pith.science/api/pith-number/X6LROVFHKLLCT3Z32DY4CWJPRZ/events.json","paper":"https://pith.science/paper/X6LROVFH"},"agent_actions":{"view_html":"https://pith.science/pith/X6LROVFHKLLCT3Z32DY4CWJPRZ","download_json":"https://pith.science/pith/X6LROVFHKLLCT3Z32DY4CWJPRZ.json","view_paper":"https://pith.science/paper/X6LROVFH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2509.13431&json=true","fetch_graph":"https://pith.science/api/pith-number/X6LROVFHKLLCT3Z32DY4CWJPRZ/graph.json","fetch_events":"https://pith.science/api/pith-number/X6LROVFHKLLCT3Z32DY4CWJPRZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X6LROVFHKLLCT3Z32DY4CWJPRZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X6LROVFHKLLCT3Z32DY4CWJPRZ/action/storage_attestation","attest_author":"https://pith.science/pith/X6LROVFHKLLCT3Z32DY4CWJPRZ/action/author_attestation","sign_citation":"https://pith.science/pith/X6LROVFHKLLCT3Z32DY4CWJPRZ/action/citation_signature","submit_replication":"https://pith.science/pith/X6LROVFHKLLCT3Z32DY4CWJPRZ/action/replication_record"}},"created_at":"2026-06-10T01:08:29.708343+00:00","updated_at":"2026-06-10T01:08:29.708343+00:00"}