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This implies model-dependent CGM magnetic field strengths of ∼0.4 - 0.8 μG over projected radii of 20 - 150 kpc.","weakest_assumption":"The observed excess in residual RM dispersion after Galactic subtraction and cuts on Milky Way HI column density and Hα intensity is produced by magnetized gas in the circumgalactic medium of the foreground galaxies traced by Mg II absorbers, rather than by residual contamination, selection effects, or unaccounted astrophysical contributions."}},"verdict_id":"db526d9c-96fc-4953-8dcc-916156033815"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e177dfc382c1f2746dc00f451d4e2b547cba33fed8f602c52deed34b1829e5a1","target":"record","created_at":"2026-05-20T00:03:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"bbe6ebfb14d3b73eadebb905cc0fc39a0c70a2c5adea9b5dc172b422024cce0d","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-16T10:30:39Z","title_canon_sha256":"5fb5b253e05604c73baa0f5db4aa3b23b217ca479ff6c5a9a8f35175a6e97887"},"schema_version":"1.0","source":{"id":"2605.16924","kind":"arxiv","version":1}},"canonical_sha256":"f889e9071ddb93b57a61e6ac83d1ac16b076149652ba99972c4fbb58b132abb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f889e9071ddb93b57a61e6ac83d1ac16b076149652ba99972c4fbb58b132abb2","first_computed_at":"2026-05-20T00:03:30.937233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:03:30.937233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fdx/whYieazP6O3AUG1tkj3D2bjQWmwYbxzf47+cUndTtUZqc3nZvX3SR5Wl+BUXzB3Ug7dSSdgmIndnrGFmDw==","signature_status":"signed_v1","signed_at":"2026-05-20T00:03:30.938059Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.16924","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e177dfc382c1f2746dc00f451d4e2b547cba33fed8f602c52deed34b1829e5a1","sha256:c38a2255ad6557e46f3c376fc681bbce40b788b3f5a8b1106b56adc2aae64be5"],"state_sha256":"8f751b6b37f763f2b73525f62eee38545f49831de43adb8684e8c525f4508968"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GVVd+M4d+1ygF4VJuZWLuUUDHpqnb+1/ryFpORCh1IaMS6sInBJ4KQ4qsfpZbPpIGryF7QMCiWAg7F93wkxADQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T21:13:35.692863Z","bundle_sha256":"37e36a5b6ef5031cb0a98c6a5cf344126ba1f936fb984e54326f6f37b68f1ae0"}}