{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:24UPK2RDU6YU6TP7NBDWWOAVIE","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":"4c303b422adb4401a6302864685d0c1a6c26d79936c753512217e47e2e083289","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-28T15:17:38Z","title_canon_sha256":"0b9102a714d7597e5745c10779cd92792aa1ec63524d738158c7adfbce2e7c20"},"schema_version":"1.0","source":{"id":"1507.07803","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07803","created_at":"2026-07-05T05:30:53Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07803v1","created_at":"2026-07-05T05:30:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07803","created_at":"2026-07-05T05:30:53Z"},{"alias_kind":"pith_short_12","alias_value":"24UPK2RDU6YU","created_at":"2026-07-05T05:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"24UPK2RDU6YU6TP7","created_at":"2026-07-05T05:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"24UPK2RD","created_at":"2026-07-05T05:30:53Z"}],"graph_snapshots":[{"event_id":"sha256:d3756a7db757c2ae851a2956194b6f90b6ae8c50b8c4dafa984da8a798ef1cab","target":"graph","created_at":"2026-07-05T05:30:53Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1507.07803/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In 1981, the production of the international Sunspot Number moved from the Z\\\"{u}rich Observatory to the Royal Observatory of Belgium, marking a very important transition in the history of the Sunspot Number. Those recent decades are particularly important for linking recent modern solar indices and fluxes and the past Sunspot Number series. However, large variations have been recently identified in the scale of the Sunspot Number between 1981 and the present.\n  Here, we reconstruct a new average Sunspot Number series $S_N$ using long-duration stations between 1981 and 2015. We also extend thi","authors_text":"Andreas Bulling, Fr\\'ed\\'eric Clette, Laure Lef\\`evre, Marco Cagnotti, Sergio Cortesi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-28T15:17:38Z","title":"The revised Brussels-Locarno Sunspot Number (1981-2015)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07803","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:daa482366fb381dd00bfd3de35d7188fd8f9e1f7c73dcd05efe60e5698817fd4","target":"record","created_at":"2026-07-05T05:30:53Z","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":"4c303b422adb4401a6302864685d0c1a6c26d79936c753512217e47e2e083289","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-28T15:17:38Z","title_canon_sha256":"0b9102a714d7597e5745c10779cd92792aa1ec63524d738158c7adfbce2e7c20"},"schema_version":"1.0","source":{"id":"1507.07803","kind":"arxiv","version":1}},"canonical_sha256":"d728f56a23a7b14f4dff68476b3815410eeb7a801377a613b6cab2b245a015d3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d728f56a23a7b14f4dff68476b3815410eeb7a801377a613b6cab2b245a015d3","first_computed_at":"2026-07-05T05:30:53.878170Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:30:53.878170Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Iu827vWueTkrk7q0gAciunhEteOhVfpUbpCir+wbA5AJZ52zJh1zJnjIuCNlw/2LmcBKZFyVzHCsncreXbh+CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:30:53.878599Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.07803","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:daa482366fb381dd00bfd3de35d7188fd8f9e1f7c73dcd05efe60e5698817fd4","sha256:d3756a7db757c2ae851a2956194b6f90b6ae8c50b8c4dafa984da8a798ef1cab"],"state_sha256":"95d4cc1332342efd16d4e505b07aa015cd3c8decad371718bd9002a51ced0b65"}