{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:3A33AIPIFQRDUZOFM62V6Z5HDK","short_pith_number":"pith:3A33AIPI","schema_version":"1.0","canonical_sha256":"d837b021e82c223a65c567b55f67a71a9bd074767c59d3fad5de022150670d9c","source":{"kind":"arxiv","id":"2508.10128","version":2},"attestation_state":"computed","paper":{"title":"Pinched Magnetic Fields in the High-mass Protocluster W3 IRS5","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"H. Beuther, Huei-Ru Vivien Chen, Kuo-Song Wang, Qizhou Zhang, Tao-Chung Ching","submitted_at":"2025-08-13T18:46:52Z","abstract_excerpt":"We present polarization maps of dust emission at 340 GHz in the luminous high-mass protocluster, W3 IRS5, observed with the Submillimeter Array. The projected magnetic fields appear fairly organized with a pinched morphology in the northern part and a concave shape in the southern part. We fit the polarization maps with a two-component magnetic field model: an hourglass model centered at the continuum peak, SMM2, and an empirical sphere centered at the O-type star, IRS7. Using the Davis-Chandrasekhar-Fermi method, we calculate a projected field strength of $B_\\mathrm{pos} = 1.4 \\; \\mathrm{mG}$"},"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":"2508.10128","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-13T18:46:52Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"d80317154af6fb0a43ab77e74939d2baa55283a52f5e0d70483b0f6ab55ce67b","abstract_canon_sha256":"095f6f6494a0a5ef9f77f9b4d2b6dfdf45fd5d243a0c8349301ebd1fd3ce7a64"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:05:19.814547Z","signature_b64":"WgSOZral4OxD2wbAVhEF3+5l1l/IGkhn50Pi2VyXQIRab8EOKvypMf1Ouvo9h3+0BAt3ZXHBdMgIKSbpV5jSCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d837b021e82c223a65c567b55f67a71a9bd074767c59d3fad5de022150670d9c","last_reissued_at":"2026-07-05T12:05:19.813769Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:05:19.813769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Pinched Magnetic Fields in the High-mass Protocluster W3 IRS5","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"H. Beuther, Huei-Ru Vivien Chen, Kuo-Song Wang, Qizhou Zhang, Tao-Chung Ching","submitted_at":"2025-08-13T18:46:52Z","abstract_excerpt":"We present polarization maps of dust emission at 340 GHz in the luminous high-mass protocluster, W3 IRS5, observed with the Submillimeter Array. The projected magnetic fields appear fairly organized with a pinched morphology in the northern part and a concave shape in the southern part. We fit the polarization maps with a two-component magnetic field model: an hourglass model centered at the continuum peak, SMM2, and an empirical sphere centered at the O-type star, IRS7. Using the Davis-Chandrasekhar-Fermi method, we calculate a projected field strength of $B_\\mathrm{pos} = 1.4 \\; \\mathrm{mG}$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.10128","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/2508.10128/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":"2508.10128","created_at":"2026-07-05T12:05:19.813857+00:00"},{"alias_kind":"arxiv_version","alias_value":"2508.10128v2","created_at":"2026-07-05T12:05:19.813857+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.10128","created_at":"2026-07-05T12:05:19.813857+00:00"},{"alias_kind":"pith_short_12","alias_value":"3A33AIPIFQRD","created_at":"2026-07-05T12:05:19.813857+00:00"},{"alias_kind":"pith_short_16","alias_value":"3A33AIPIFQRDUZOF","created_at":"2026-07-05T12:05:19.813857+00:00"},{"alias_kind":"pith_short_8","alias_value":"3A33AIPI","created_at":"2026-07-05T12:05:19.813857+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/3A33AIPIFQRDUZOFM62V6Z5HDK","json":"https://pith.science/pith/3A33AIPIFQRDUZOFM62V6Z5HDK.json","graph_json":"https://pith.science/api/pith-number/3A33AIPIFQRDUZOFM62V6Z5HDK/graph.json","events_json":"https://pith.science/api/pith-number/3A33AIPIFQRDUZOFM62V6Z5HDK/events.json","paper":"https://pith.science/paper/3A33AIPI"},"agent_actions":{"view_html":"https://pith.science/pith/3A33AIPIFQRDUZOFM62V6Z5HDK","download_json":"https://pith.science/pith/3A33AIPIFQRDUZOFM62V6Z5HDK.json","view_paper":"https://pith.science/paper/3A33AIPI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2508.10128&json=true","fetch_graph":"https://pith.science/api/pith-number/3A33AIPIFQRDUZOFM62V6Z5HDK/graph.json","fetch_events":"https://pith.science/api/pith-number/3A33AIPIFQRDUZOFM62V6Z5HDK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3A33AIPIFQRDUZOFM62V6Z5HDK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3A33AIPIFQRDUZOFM62V6Z5HDK/action/storage_attestation","attest_author":"https://pith.science/pith/3A33AIPIFQRDUZOFM62V6Z5HDK/action/author_attestation","sign_citation":"https://pith.science/pith/3A33AIPIFQRDUZOFM62V6Z5HDK/action/citation_signature","submit_replication":"https://pith.science/pith/3A33AIPIFQRDUZOFM62V6Z5HDK/action/replication_record"}},"created_at":"2026-07-05T12:05:19.813857+00:00","updated_at":"2026-07-05T12:05:19.813857+00:00"}