{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:LNF53U7PRLNWUCQWYGV42G2RHZ","short_pith_number":"pith:LNF53U7P","schema_version":"1.0","canonical_sha256":"5b4bddd3ef8adb6a0a16c1abcd1b513e7700bb06d154a20cf44efe699a158609","source":{"kind":"arxiv","id":"2607.20985","version":1},"attestation_state":"computed","paper":{"title":"Accurate Extragalactic Magnetic Fields from Faraday Rotation with Optimal Dispersion Measure Estimators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Hilay Shah, Mark Krumholz, Naomi McClure-Griffiths, Zipeng Hu","submitted_at":"2026-07-23T07:07:54Z","abstract_excerpt":"Faraday rotation measures (RMs) are one of our few observational tools for measuring magnetic field strengths in extragalactic systems, but converting an RM to a magnetic field estimate requires knowledge of the electron column density -- the dispersion measure (DM) -- to the RM source. Because DMs are difficult to measure for most extragalactic radio galaxies, observers have adopted a range of strategies to estimate them from more easily measured quantities, but the accuracy of these approaches is poorly known. To address this, we carry out simulated observations of high-resolution magnetohyd"},"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":"2607.20985","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-23T07:07:54Z","cross_cats_sorted":[],"title_canon_sha256":"9e5745b72f3358ebb79d4aa4bd42d1b1f2dca5e7bb07131654ce79d5bed13991","abstract_canon_sha256":"8f1d4fcd5de13476ba61387ca74d62d281da76b418fe87d8e397fe800dd257c8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-24T01:23:45.551753Z","signature_b64":"aARcLaTCSjEHKY9youktFems36h22mgkkSHSepCN7p9sHii/brbQi8msvFcseuAOQ0YfOwrO866ZjxSwCZL8Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b4bddd3ef8adb6a0a16c1abcd1b513e7700bb06d154a20cf44efe699a158609","last_reissued_at":"2026-07-24T01:23:45.550866Z","signature_status":"signed_v1","first_computed_at":"2026-07-24T01:23:45.550866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Accurate Extragalactic Magnetic Fields from Faraday Rotation with Optimal Dispersion Measure Estimators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Hilay Shah, Mark Krumholz, Naomi McClure-Griffiths, Zipeng Hu","submitted_at":"2026-07-23T07:07:54Z","abstract_excerpt":"Faraday rotation measures (RMs) are one of our few observational tools for measuring magnetic field strengths in extragalactic systems, but converting an RM to a magnetic field estimate requires knowledge of the electron column density -- the dispersion measure (DM) -- to the RM source. Because DMs are difficult to measure for most extragalactic radio galaxies, observers have adopted a range of strategies to estimate them from more easily measured quantities, but the accuracy of these approaches is poorly known. To address this, we carry out simulated observations of high-resolution magnetohyd"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.20985","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/2607.20985/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":"2607.20985","created_at":"2026-07-24T01:23:45.551293+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.20985v1","created_at":"2026-07-24T01:23:45.551293+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.20985","created_at":"2026-07-24T01:23:45.551293+00:00"},{"alias_kind":"pith_short_12","alias_value":"LNF53U7PRLNW","created_at":"2026-07-24T01:23:45.551293+00:00"},{"alias_kind":"pith_short_16","alias_value":"LNF53U7PRLNWUCQW","created_at":"2026-07-24T01:23:45.551293+00:00"},{"alias_kind":"pith_short_8","alias_value":"LNF53U7P","created_at":"2026-07-24T01:23:45.551293+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/LNF53U7PRLNWUCQWYGV42G2RHZ","json":"https://pith.science/pith/LNF53U7PRLNWUCQWYGV42G2RHZ.json","graph_json":"https://pith.science/api/pith-number/LNF53U7PRLNWUCQWYGV42G2RHZ/graph.json","events_json":"https://pith.science/api/pith-number/LNF53U7PRLNWUCQWYGV42G2RHZ/events.json","paper":"https://pith.science/paper/LNF53U7P"},"agent_actions":{"view_html":"https://pith.science/pith/LNF53U7PRLNWUCQWYGV42G2RHZ","download_json":"https://pith.science/pith/LNF53U7PRLNWUCQWYGV42G2RHZ.json","view_paper":"https://pith.science/paper/LNF53U7P","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.20985&json=true","fetch_graph":"https://pith.science/api/pith-number/LNF53U7PRLNWUCQWYGV42G2RHZ/graph.json","fetch_events":"https://pith.science/api/pith-number/LNF53U7PRLNWUCQWYGV42G2RHZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LNF53U7PRLNWUCQWYGV42G2RHZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LNF53U7PRLNWUCQWYGV42G2RHZ/action/storage_attestation","attest_author":"https://pith.science/pith/LNF53U7PRLNWUCQWYGV42G2RHZ/action/author_attestation","sign_citation":"https://pith.science/pith/LNF53U7PRLNWUCQWYGV42G2RHZ/action/citation_signature","submit_replication":"https://pith.science/pith/LNF53U7PRLNWUCQWYGV42G2RHZ/action/replication_record"}},"created_at":"2026-07-24T01:23:45.551293+00:00","updated_at":"2026-07-24T01:23:45.551293+00:00"}