{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:PSZY22AUSU24LPSPLIFBTY2OJ2","short_pith_number":"pith:PSZY22AU","schema_version":"1.0","canonical_sha256":"7cb38d68149535c5be4f5a0a19e34e4ea03ce9283ef640a7b31405c8431d260d","source":{"kind":"arxiv","id":"2509.05955","version":1},"attestation_state":"computed","paper":{"title":"Active noise cancellation in ultra-low field MRI: distinct strategies for different channels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Jiali He, Jiamin Wu, Liang Tan, Sheng Shen, Xiaohan Kong, Yamei Dai, Zheng Xu","submitted_at":"2025-09-07T07:33:42Z","abstract_excerpt":"Ultra-low field magnetic resonance imaging(ULF-MRI) systems operating in open environments are highly susceptible to composite electromagnetic interference(EMI). Different imaging channels respond non-uniformly to EMI owing to their distinct coupling characteristics. Here, we investigate channel-specific interference pathways in a permanent-magnet-based low-field MRI system and show that saddle coils are intrinsically more vulnerable to transverse EMI components than solenoidal coils. To mitigate these heterogeneous coupling effects, we propose a dual-stage suppression strategy that combines f"},"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":"2509.05955","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-09-07T07:33:42Z","cross_cats_sorted":[],"title_canon_sha256":"c3b3e8e048c1d73ab14e7d86600e5269599efa5bb9b04cb548ab5dd830609a0f","abstract_canon_sha256":"cb95edd095ec506e26fa25eaec3619687f1ba36c57255a18db4d3857ac87ce13"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:06:27.210461Z","signature_b64":"seOuOfBtu8e0nGKlqbyMYY3mdp2cGHTQrvRhiCaKFXK3XTudzPsutI5AAi2mkLhZer3V0MuZAO4bFXiZ3CpkDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7cb38d68149535c5be4f5a0a19e34e4ea03ce9283ef640a7b31405c8431d260d","last_reissued_at":"2026-07-05T12:06:27.210038Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:06:27.210038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Active noise cancellation in ultra-low field MRI: distinct strategies for different channels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Jiali He, Jiamin Wu, Liang Tan, Sheng Shen, Xiaohan Kong, Yamei Dai, Zheng Xu","submitted_at":"2025-09-07T07:33:42Z","abstract_excerpt":"Ultra-low field magnetic resonance imaging(ULF-MRI) systems operating in open environments are highly susceptible to composite electromagnetic interference(EMI). Different imaging channels respond non-uniformly to EMI owing to their distinct coupling characteristics. Here, we investigate channel-specific interference pathways in a permanent-magnet-based low-field MRI system and show that saddle coils are intrinsically more vulnerable to transverse EMI components than solenoidal coils. To mitigate these heterogeneous coupling effects, we propose a dual-stage suppression strategy that combines f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.05955","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/2509.05955/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":"2509.05955","created_at":"2026-07-05T12:06:27.210095+00:00"},{"alias_kind":"arxiv_version","alias_value":"2509.05955v1","created_at":"2026-07-05T12:06:27.210095+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.05955","created_at":"2026-07-05T12:06:27.210095+00:00"},{"alias_kind":"pith_short_12","alias_value":"PSZY22AUSU24","created_at":"2026-07-05T12:06:27.210095+00:00"},{"alias_kind":"pith_short_16","alias_value":"PSZY22AUSU24LPSP","created_at":"2026-07-05T12:06:27.210095+00:00"},{"alias_kind":"pith_short_8","alias_value":"PSZY22AU","created_at":"2026-07-05T12:06:27.210095+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.16444","citing_title":"Comment on electromagnetic noise cancellation in low-field MRI systems (arXiv:2509.05955v1, 2406.17804v3, 2210.06730v2, and related works)","ref_index":1,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2","json":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2.json","graph_json":"https://pith.science/api/pith-number/PSZY22AUSU24LPSPLIFBTY2OJ2/graph.json","events_json":"https://pith.science/api/pith-number/PSZY22AUSU24LPSPLIFBTY2OJ2/events.json","paper":"https://pith.science/paper/PSZY22AU"},"agent_actions":{"view_html":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2","download_json":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2.json","view_paper":"https://pith.science/paper/PSZY22AU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2509.05955&json=true","fetch_graph":"https://pith.science/api/pith-number/PSZY22AUSU24LPSPLIFBTY2OJ2/graph.json","fetch_events":"https://pith.science/api/pith-number/PSZY22AUSU24LPSPLIFBTY2OJ2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2/action/storage_attestation","attest_author":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2/action/author_attestation","sign_citation":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2/action/citation_signature","submit_replication":"https://pith.science/pith/PSZY22AUSU24LPSPLIFBTY2OJ2/action/replication_record"}},"created_at":"2026-07-05T12:06:27.210095+00:00","updated_at":"2026-07-05T12:06:27.210095+00:00"}