{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TDZWIUQM37LC5GX74UHAYNEZTS","short_pith_number":"pith:TDZWIUQM","canonical_record":{"source":{"id":"1810.11952","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-29T04:44:49Z","cross_cats_sorted":[],"title_canon_sha256":"26638272bc2b1814aa469cfd385935fafa2d692b9eb7afe84656a936cad6216b","abstract_canon_sha256":"6984be1b3acdf12d1fa62c383410e72f65072ff34391e272702d9a4a880798e3"},"schema_version":"1.0"},"canonical_sha256":"98f364520cdfd62e9affe50e0c34999c81eb366fd09d62d2ad86f406fe1350f1","source":{"kind":"arxiv","id":"1810.11952","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.11952","created_at":"2026-05-18T00:02:06Z"},{"alias_kind":"arxiv_version","alias_value":"1810.11952v1","created_at":"2026-05-18T00:02:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.11952","created_at":"2026-05-18T00:02:06Z"},{"alias_kind":"pith_short_12","alias_value":"TDZWIUQM37LC","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TDZWIUQM37LC5GX7","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TDZWIUQM","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TDZWIUQM37LC5GX74UHAYNEZTS","target":"record","payload":{"canonical_record":{"source":{"id":"1810.11952","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-29T04:44:49Z","cross_cats_sorted":[],"title_canon_sha256":"26638272bc2b1814aa469cfd385935fafa2d692b9eb7afe84656a936cad6216b","abstract_canon_sha256":"6984be1b3acdf12d1fa62c383410e72f65072ff34391e272702d9a4a880798e3"},"schema_version":"1.0"},"canonical_sha256":"98f364520cdfd62e9affe50e0c34999c81eb366fd09d62d2ad86f406fe1350f1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:06.912327Z","signature_b64":"cEJ8Dw3GqEIIg1iRgBGuNaYoEQ180XriEnfZ2IOGeCNN+uZPHQuaMC8/WVLwJSZePnXW5tlnaLrma0IltIdZBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98f364520cdfd62e9affe50e0c34999c81eb366fd09d62d2ad86f406fe1350f1","last_reissued_at":"2026-05-18T00:02:06.911639Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:06.911639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.11952","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:02:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XHK/1fujjglwdisT+WGhefrK5ZPIuMNUe0FEonsKAw7q9zdllz5UYiyyFacZ9t1AESPBdKLQydJtaCKrUYalBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T11:52:01.163435Z"},"content_sha256":"a53536087410917d8a9f960f30aa90b0d7c821451117cb76fb9dc8cd0397993d","schema_version":"1.0","event_id":"sha256:a53536087410917d8a9f960f30aa90b0d7c821451117cb76fb9dc8cd0397993d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TDZWIUQM37LC5GX74UHAYNEZTS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Up to Nine Millennia of Multimessenger Solar Activity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Leif Svalgaard","submitted_at":"2018-10-29T04:44:49Z","abstract_excerpt":"A nine-millennia reconstruction of decadal sunspot numbers derived from 10Be and 14C terrestrial archives for 6755 BC to 1885 AD has been extended to the present using several other messengers (Observed Sunspot Number, Group Number, range of the diurnal variation of the geomagnetic field, and the InterDiurnal Variation of the geomagnetic Ring Current) and scaled to the modern SILSO Version 2 sunspot number. We find that there has been no secular up tick of activity the last three hundred years and that recent activity has not been out of the ordinary. There is a sharp 87.6-year peak in the pow"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.11952","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:02:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oBxA9G/nhaBVv/fvTy46BX3rDKnpRIpS2799fFVt5ktnk8jx21Dz9X+gbWPkN9j0bSWQ9C7QMlXvFnexFkzvBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T11:52:01.163781Z"},"content_sha256":"777a42155ad71d6953f15386a65f723ef401a48d70db2f9d37d1106bcbd93541","schema_version":"1.0","event_id":"sha256:777a42155ad71d6953f15386a65f723ef401a48d70db2f9d37d1106bcbd93541"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TDZWIUQM37LC5GX74UHAYNEZTS/bundle.json","state_url":"https://pith.science/pith/TDZWIUQM37LC5GX74UHAYNEZTS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TDZWIUQM37LC5GX74UHAYNEZTS/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-25T11:52:01Z","links":{"resolver":"https://pith.science/pith/TDZWIUQM37LC5GX74UHAYNEZTS","bundle":"https://pith.science/pith/TDZWIUQM37LC5GX74UHAYNEZTS/bundle.json","state":"https://pith.science/pith/TDZWIUQM37LC5GX74UHAYNEZTS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TDZWIUQM37LC5GX74UHAYNEZTS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TDZWIUQM37LC5GX74UHAYNEZTS","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":"6984be1b3acdf12d1fa62c383410e72f65072ff34391e272702d9a4a880798e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-29T04:44:49Z","title_canon_sha256":"26638272bc2b1814aa469cfd385935fafa2d692b9eb7afe84656a936cad6216b"},"schema_version":"1.0","source":{"id":"1810.11952","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.11952","created_at":"2026-05-18T00:02:06Z"},{"alias_kind":"arxiv_version","alias_value":"1810.11952v1","created_at":"2026-05-18T00:02:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.11952","created_at":"2026-05-18T00:02:06Z"},{"alias_kind":"pith_short_12","alias_value":"TDZWIUQM37LC","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TDZWIUQM37LC5GX7","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TDZWIUQM","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:777a42155ad71d6953f15386a65f723ef401a48d70db2f9d37d1106bcbd93541","target":"graph","created_at":"2026-05-18T00:02:06Z","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":"A nine-millennia reconstruction of decadal sunspot numbers derived from 10Be and 14C terrestrial archives for 6755 BC to 1885 AD has been extended to the present using several other messengers (Observed Sunspot Number, Group Number, range of the diurnal variation of the geomagnetic field, and the InterDiurnal Variation of the geomagnetic Ring Current) and scaled to the modern SILSO Version 2 sunspot number. We find that there has been no secular up tick of activity the last three hundred years and that recent activity has not been out of the ordinary. There is a sharp 87.6-year peak in the pow","authors_text":"Leif Svalgaard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-29T04:44:49Z","title":"Up to Nine Millennia of Multimessenger Solar Activity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.11952","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:a53536087410917d8a9f960f30aa90b0d7c821451117cb76fb9dc8cd0397993d","target":"record","created_at":"2026-05-18T00:02:06Z","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":"6984be1b3acdf12d1fa62c383410e72f65072ff34391e272702d9a4a880798e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-29T04:44:49Z","title_canon_sha256":"26638272bc2b1814aa469cfd385935fafa2d692b9eb7afe84656a936cad6216b"},"schema_version":"1.0","source":{"id":"1810.11952","kind":"arxiv","version":1}},"canonical_sha256":"98f364520cdfd62e9affe50e0c34999c81eb366fd09d62d2ad86f406fe1350f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98f364520cdfd62e9affe50e0c34999c81eb366fd09d62d2ad86f406fe1350f1","first_computed_at":"2026-05-18T00:02:06.911639Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:06.911639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cEJ8Dw3GqEIIg1iRgBGuNaYoEQ180XriEnfZ2IOGeCNN+uZPHQuaMC8/WVLwJSZePnXW5tlnaLrma0IltIdZBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:06.912327Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.11952","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a53536087410917d8a9f960f30aa90b0d7c821451117cb76fb9dc8cd0397993d","sha256:777a42155ad71d6953f15386a65f723ef401a48d70db2f9d37d1106bcbd93541"],"state_sha256":"a069af487edc7b42fc9867fd6d29e6472c869a52e3e9a9c0a8a547a94a3a9245"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dscIQ86jOtc+o15QS4ZgiP4sdedEco9euPCcDOXvClll73205Yhcd52ItGM1c9Qp2SXNmVP9Un2a9xHAXFMSCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T11:52:01.165870Z","bundle_sha256":"22a68e71b0584872c41f292621afb52e801d78146ad4afcf09564de225069280"}}