{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:GAZPKI6DEQ2KRFM5EE2D67J34J","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":"c4c07e6f6d5ffa9b3e4664c5f893078ba7d4aaf6857e9fe41a2272210ca5650d","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2015-05-26T16:02:12Z","title_canon_sha256":"4a0a0e8e4a4c8cbc38a54c399bb397a0b1db16aec5ef4e56dc9efa5bbcd50169"},"schema_version":"1.0","source":{"id":"1505.07028","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07028","created_at":"2026-05-18T01:37:48Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07028v1","created_at":"2026-05-18T01:37:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07028","created_at":"2026-05-18T01:37:48Z"},{"alias_kind":"pith_short_12","alias_value":"GAZPKI6DEQ2K","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GAZPKI6DEQ2KRFM5","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GAZPKI6D","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:86fee26c2faca13dd95bfc0492bd7a3645d31db650291adf60b1437c004f4383","target":"graph","created_at":"2026-05-18T01:37:48Z","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":"In September 1859 the Colaba observatory measured the most extreme geomagnetic disturbance ever recorded at low latitudes related to solar activity: the Carrington storm. This paper describes a geomagnetic disturbance case with a profile extraordinarily similar to the disturbance of the Carrington event at Colaba: the event on 29 October 2003 at Tihany magnetic observatory in Hungary. The analysis of the H-field at different locations during the \"Carrington-like\" event leads to a re-interpretation of the 1859 event. The major conclusions of the paper are the following: (a) the global Dst or SY","authors_text":"A. Guerrero, C. Cid, E. Saiz, J. Palacios, Y. Cerrato","cross_cats":["physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2015-05-26T16:02:12Z","title":"A Carrington-like geomagnetic storm observed in the 21st century"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07028","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:dc08ac3870b287f6576f0670f7411ba29c5a6fe9c5d43852444c8e9ecc9cd4e8","target":"record","created_at":"2026-05-18T01:37:48Z","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":"c4c07e6f6d5ffa9b3e4664c5f893078ba7d4aaf6857e9fe41a2272210ca5650d","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2015-05-26T16:02:12Z","title_canon_sha256":"4a0a0e8e4a4c8cbc38a54c399bb397a0b1db16aec5ef4e56dc9efa5bbcd50169"},"schema_version":"1.0","source":{"id":"1505.07028","kind":"arxiv","version":1}},"canonical_sha256":"3032f523c32434a8959d21343f7d3be24528b7d89d61496e7b593d20bd9b874b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3032f523c32434a8959d21343f7d3be24528b7d89d61496e7b593d20bd9b874b","first_computed_at":"2026-05-18T01:37:48.774365Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:48.774365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pyegRY1uBzV3jdMk+Ybo9WYhLQi9X4f88ktMA3Lb9IVhNszDhsanSUXuAWY2JBUvmFQlhAxtvmjftL/5kKlYDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:48.774948Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.07028","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc08ac3870b287f6576f0670f7411ba29c5a6fe9c5d43852444c8e9ecc9cd4e8","sha256:86fee26c2faca13dd95bfc0492bd7a3645d31db650291adf60b1437c004f4383"],"state_sha256":"f9d78ee8ab212fd9bc87a63ab9ad47637582bc3c77c7e9ace07e146bb6cdcdc5"}