{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:Q26U2ZC4TNPTCESCZO5ISIDR23","short_pith_number":"pith:Q26U2ZC4","schema_version":"1.0","canonical_sha256":"86bd4d645c9b5f311242cbba892071d6cc711583107cb9e8b3af2c2002b2b9a0","source":{"kind":"arxiv","id":"1804.04994","version":1},"attestation_state":"computed","paper":{"title":"Bihelical spectrum of solar magnetic helicity and its evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andreas Lagg, Axel Brandenburg, Ilpo Virtanen, Maarit J. K\\\"apyl\\\"a, Nishant K. Singh, Petri J. K\\\"apyl\\\"a","submitted_at":"2018-04-13T15:36:30Z","abstract_excerpt":"Using a recently developed two-scale formalism to determine the magnetic helicity spectrum (Brandenburg et al. 2017), we analyze synoptic vector magnetograms built with data from the Vector Spectromagnetograph (VSM) instrument on the \\emph{Synoptic Optical Long-term Investigations of the Sun} (SOLIS) telescope during January 2010-July 2016. In contrast to an earlier study using only three Carrington rotations, our analysis includes 74 synoptic Carrington rotation maps. We recover here bihelical spectra at different phases of solar cycle~24, where the net magnetic helicity in the majority of th"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1804.04994","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-04-13T15:36:30Z","cross_cats_sorted":[],"title_canon_sha256":"418a0f5e00e801756da13dc40d2ca306fd204114c28503d73d22c38b653d319a","abstract_canon_sha256":"79ca36a7dcac70706930603e8c70c6690e235f757225d7cd5eb436f253de0043"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:34.043496Z","signature_b64":"lqT/eDVchX1oe1iy7NZChE5wvMkzkvJTE0QwyabPBCpXgJWGKgCvrCfA37G0E7T+gQKjMGNt6+YbubKYfHSfBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86bd4d645c9b5f311242cbba892071d6cc711583107cb9e8b3af2c2002b2b9a0","last_reissued_at":"2026-05-17T23:56:34.042812Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:34.042812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Bihelical spectrum of solar magnetic helicity and its evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andreas Lagg, Axel Brandenburg, Ilpo Virtanen, Maarit J. K\\\"apyl\\\"a, Nishant K. Singh, Petri J. K\\\"apyl\\\"a","submitted_at":"2018-04-13T15:36:30Z","abstract_excerpt":"Using a recently developed two-scale formalism to determine the magnetic helicity spectrum (Brandenburg et al. 2017), we analyze synoptic vector magnetograms built with data from the Vector Spectromagnetograph (VSM) instrument on the \\emph{Synoptic Optical Long-term Investigations of the Sun} (SOLIS) telescope during January 2010-July 2016. In contrast to an earlier study using only three Carrington rotations, our analysis includes 74 synoptic Carrington rotation maps. We recover here bihelical spectra at different phases of solar cycle~24, where the net magnetic helicity in the majority of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.04994","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1804.04994","created_at":"2026-05-17T23:56:34.042923+00:00"},{"alias_kind":"arxiv_version","alias_value":"1804.04994v1","created_at":"2026-05-17T23:56:34.042923+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.04994","created_at":"2026-05-17T23:56:34.042923+00:00"},{"alias_kind":"pith_short_12","alias_value":"Q26U2ZC4TNPT","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_16","alias_value":"Q26U2ZC4TNPTCESC","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_8","alias_value":"Q26U2ZC4","created_at":"2026-05-18T12:32:46.962924+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23","json":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23.json","graph_json":"https://pith.science/api/pith-number/Q26U2ZC4TNPTCESCZO5ISIDR23/graph.json","events_json":"https://pith.science/api/pith-number/Q26U2ZC4TNPTCESCZO5ISIDR23/events.json","paper":"https://pith.science/paper/Q26U2ZC4"},"agent_actions":{"view_html":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23","download_json":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23.json","view_paper":"https://pith.science/paper/Q26U2ZC4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1804.04994&json=true","fetch_graph":"https://pith.science/api/pith-number/Q26U2ZC4TNPTCESCZO5ISIDR23/graph.json","fetch_events":"https://pith.science/api/pith-number/Q26U2ZC4TNPTCESCZO5ISIDR23/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23/action/storage_attestation","attest_author":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23/action/author_attestation","sign_citation":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23/action/citation_signature","submit_replication":"https://pith.science/pith/Q26U2ZC4TNPTCESCZO5ISIDR23/action/replication_record"}},"created_at":"2026-05-17T23:56:34.042923+00:00","updated_at":"2026-05-17T23:56:34.042923+00:00"}