{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7RKAFGOMITE7RIO35B5BJ3TGFK","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"dbf904d5cb9d01a4d8e759474a3e8238c4d3ab04aca0d1d6ed585a46c855e6d8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-07T21:13:14Z","title_canon_sha256":"163cd4b3101f5f35832b78dd7195c3beb72794f2535cc6cfa1d8e5ed635f332e"},"schema_version":"1.0","source":{"id":"1702.02200","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.02200","created_at":"2026-05-18T00:48:05Z"},{"alias_kind":"arxiv_version","alias_value":"1702.02200v1","created_at":"2026-05-18T00:48:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.02200","created_at":"2026-05-18T00:48:05Z"},{"alias_kind":"pith_short_12","alias_value":"7RKAFGOMITE7","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7RKAFGOMITE7RIO3","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7RKAFGOM","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:3699920c19af7ed7cba58304288d45e422e5020bf113694969e8af92f3a52dbf","target":"graph","created_at":"2026-05-18T00:48:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The Fan Region is one of the dominant features in the polarized radio sky, long thought to be a local (distance < 500 pc) synchrotron feature. We present 1.3-1.8 GHz polarized radio continuum observations of the region from the Global Magneto-Ionic Medium Survey (GMIMS) and compare them to maps of Halpha and polarized radio continuum intensity from 0.408-353 GHz. The high-frequency (> 1 GHz) and low-frequency (< 600 MHz) emission have different morphologies, suggesting a different physical origin. Portions of the 1.5 GHz Fan Region emission are depolarized by about 30% by ionized gas structure","authors_text":"A. D. Gray, A. S. Hill, B. M. Gaensler, D. H. F. M. Schnitzeler, E. Carretti, J. M. Dickey, J. P. Leahy, K. Douglas, M. Haverkorn, M. Wolleben, N. M. McClure-Griffiths, S. A. Mao, T. L. Landecker, W. Reich, X. H. Sun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-07T21:13:14Z","title":"The Fan Region at 1.5 GHz. I: Polarized synchrotron emission extending beyond the Perseus Arm"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.02200","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:f757676fe91de7a0bb914a530642fce7ec527e0ba324afd4140275e6b935ba26","target":"record","created_at":"2026-05-18T00:48:05Z","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":"dbf904d5cb9d01a4d8e759474a3e8238c4d3ab04aca0d1d6ed585a46c855e6d8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-07T21:13:14Z","title_canon_sha256":"163cd4b3101f5f35832b78dd7195c3beb72794f2535cc6cfa1d8e5ed635f332e"},"schema_version":"1.0","source":{"id":"1702.02200","kind":"arxiv","version":1}},"canonical_sha256":"fc540299cc44c9f8a1dbe87a14ee662a830c4eacdd30fd38584ef14488b76899","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fc540299cc44c9f8a1dbe87a14ee662a830c4eacdd30fd38584ef14488b76899","first_computed_at":"2026-05-18T00:48:05.010662Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:05.010662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rD8rjEGZsQBx0fsI744Yhi+XSQXFAvoMw7ej/17KibgxY2jRxGsKxzKTg71dKlfdHD1jjt+5zEKP9lZvHdXjDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:05.011389Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.02200","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f757676fe91de7a0bb914a530642fce7ec527e0ba324afd4140275e6b935ba26","sha256:3699920c19af7ed7cba58304288d45e422e5020bf113694969e8af92f3a52dbf"],"state_sha256":"0ff5daf36d09b8867dd02203198542b87aedb6e4113b1018674bf9318723e7bf"}