{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:GS6M2O2PWQ6SP2ELBPMAZDXSLF","short_pith_number":"pith:GS6M2O2P","schema_version":"1.0","canonical_sha256":"34bccd3b4fb43d27e88b0bd80c8ef2596ba07d28dc66dbeb7683ba38df553a1a","source":{"kind":"arxiv","id":"1303.0311","version":1},"attestation_state":"computed","paper":{"title":"A magnetic cycle of tau Bootis? The coronal and chromospheric view","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"H.M. Guenther, J.H.M.M. Schmitt, K. Poppenhaeger","submitted_at":"2013-03-01T21:53:39Z","abstract_excerpt":"Tau Bootis is a late F-type main sequence star orbited by a Hot Jupiter. During the last years spectropolarimetric observations led to the hypothesis that this star may host a global magnetic field that switches its polarity once per year, indicating a very short activity cycle of only one year duration. In our ongoing observational campaign, we have collected several X-ray observations with XMM-Newton and optical spectra with TRES/FLWO in Arizona to characterize tau Boo's corona and chromosphere over the course of the supposed one-year cycle. Contrary to the spectropolarimetric reconstruction"},"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":"1303.0311","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-01T21:53:39Z","cross_cats_sorted":[],"title_canon_sha256":"f07add7f868671fc5829fa2663684900f906911533dadfbe4fa8c4341e6b427a","abstract_canon_sha256":"de3ef1de7e04996b3408889c6ff2115c43ea84847d115ce6357ab53f17281987"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:56.501950Z","signature_b64":"PYyBwq0HMz+tZ6Hme3PAyiFCmcQPgYfrwbyuOHaN2e2WDhmNUO5pniy6IMdzSZsQwmwBCrIOPf0cuh1fB2tJBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34bccd3b4fb43d27e88b0bd80c8ef2596ba07d28dc66dbeb7683ba38df553a1a","last_reissued_at":"2026-05-18T03:31:56.501326Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:56.501326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A magnetic cycle of tau Bootis? The coronal and chromospheric view","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"H.M. Guenther, J.H.M.M. Schmitt, K. Poppenhaeger","submitted_at":"2013-03-01T21:53:39Z","abstract_excerpt":"Tau Bootis is a late F-type main sequence star orbited by a Hot Jupiter. During the last years spectropolarimetric observations led to the hypothesis that this star may host a global magnetic field that switches its polarity once per year, indicating a very short activity cycle of only one year duration. In our ongoing observational campaign, we have collected several X-ray observations with XMM-Newton and optical spectra with TRES/FLWO in Arizona to characterize tau Boo's corona and chromosphere over the course of the supposed one-year cycle. Contrary to the spectropolarimetric reconstruction"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.0311","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":"1303.0311","created_at":"2026-05-18T03:31:56.501420+00:00"},{"alias_kind":"arxiv_version","alias_value":"1303.0311v1","created_at":"2026-05-18T03:31:56.501420+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.0311","created_at":"2026-05-18T03:31:56.501420+00:00"},{"alias_kind":"pith_short_12","alias_value":"GS6M2O2PWQ6S","created_at":"2026-05-18T12:27:45.050594+00:00"},{"alias_kind":"pith_short_16","alias_value":"GS6M2O2PWQ6SP2EL","created_at":"2026-05-18T12:27:45.050594+00:00"},{"alias_kind":"pith_short_8","alias_value":"GS6M2O2P","created_at":"2026-05-18T12:27:45.050594+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/GS6M2O2PWQ6SP2ELBPMAZDXSLF","json":"https://pith.science/pith/GS6M2O2PWQ6SP2ELBPMAZDXSLF.json","graph_json":"https://pith.science/api/pith-number/GS6M2O2PWQ6SP2ELBPMAZDXSLF/graph.json","events_json":"https://pith.science/api/pith-number/GS6M2O2PWQ6SP2ELBPMAZDXSLF/events.json","paper":"https://pith.science/paper/GS6M2O2P"},"agent_actions":{"view_html":"https://pith.science/pith/GS6M2O2PWQ6SP2ELBPMAZDXSLF","download_json":"https://pith.science/pith/GS6M2O2PWQ6SP2ELBPMAZDXSLF.json","view_paper":"https://pith.science/paper/GS6M2O2P","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1303.0311&json=true","fetch_graph":"https://pith.science/api/pith-number/GS6M2O2PWQ6SP2ELBPMAZDXSLF/graph.json","fetch_events":"https://pith.science/api/pith-number/GS6M2O2PWQ6SP2ELBPMAZDXSLF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GS6M2O2PWQ6SP2ELBPMAZDXSLF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GS6M2O2PWQ6SP2ELBPMAZDXSLF/action/storage_attestation","attest_author":"https://pith.science/pith/GS6M2O2PWQ6SP2ELBPMAZDXSLF/action/author_attestation","sign_citation":"https://pith.science/pith/GS6M2O2PWQ6SP2ELBPMAZDXSLF/action/citation_signature","submit_replication":"https://pith.science/pith/GS6M2O2PWQ6SP2ELBPMAZDXSLF/action/replication_record"}},"created_at":"2026-05-18T03:31:56.501420+00:00","updated_at":"2026-05-18T03:31:56.501420+00:00"}