{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:AMPNLKZ5PGL52DS3AH46CYWMMC","short_pith_number":"pith:AMPNLKZ5","schema_version":"1.0","canonical_sha256":"031ed5ab3d7997dd0e5b01f9e162cc60a5c0685470031a860bd3e975551c88a8","source":{"kind":"arxiv","id":"1012.1720","version":1},"attestation_state":"computed","paper":{"title":"A search for star-planet interactions in chromospheric lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Reiners, L.F. Lenz, M. K\\\"urster","submitted_at":"2010-12-08T09:56:53Z","abstract_excerpt":"Massive planets in very close orbits around their central stars can induce so-called star-planet interactions (SPI), which may be of magnetic or gravitational nature. In both cases, SPI can potentially cause recurring chromospheric emission on the host star visible in Ca II H & K and/or H$\\alpha$. The emission would be bound to the planetary orbit, not to the rotation period of the star. We searched for SPI in a sample of 7 stars with massive close-in planets using high-resolution spectroscopic data taken at HRS (HET) and FEROS (La Silla). We find no periodically recurring emission in the plan"},"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":"1012.1720","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-08T09:56:53Z","cross_cats_sorted":[],"title_canon_sha256":"728e61c65373cb95cd549beafe843b32822ad83e28655ca16747cd20d334ec74","abstract_canon_sha256":"65442371fbaffecbd19df93f4aebc4a1bbacc9e5bca63cc8c5deed74833ea5d7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:23:07.762785Z","signature_b64":"HCcCWfCJUWIYN0l5zvtaROBPlhqzA3Tt/bgDCN+dSSPKNBZ9XsZbc2B25QikSQahMdnhdnBOgZptTjOkR/PFBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"031ed5ab3d7997dd0e5b01f9e162cc60a5c0685470031a860bd3e975551c88a8","last_reissued_at":"2026-05-18T02:23:07.762247Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:23:07.762247Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A search for star-planet interactions in chromospheric lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Reiners, L.F. Lenz, M. K\\\"urster","submitted_at":"2010-12-08T09:56:53Z","abstract_excerpt":"Massive planets in very close orbits around their central stars can induce so-called star-planet interactions (SPI), which may be of magnetic or gravitational nature. In both cases, SPI can potentially cause recurring chromospheric emission on the host star visible in Ca II H & K and/or H$\\alpha$. The emission would be bound to the planetary orbit, not to the rotation period of the star. We searched for SPI in a sample of 7 stars with massive close-in planets using high-resolution spectroscopic data taken at HRS (HET) and FEROS (La Silla). We find no periodically recurring emission in the plan"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1720","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":"1012.1720","created_at":"2026-05-18T02:23:07.762332+00:00"},{"alias_kind":"arxiv_version","alias_value":"1012.1720v1","created_at":"2026-05-18T02:23:07.762332+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1720","created_at":"2026-05-18T02:23:07.762332+00:00"},{"alias_kind":"pith_short_12","alias_value":"AMPNLKZ5PGL5","created_at":"2026-05-18T12:26:05.355336+00:00"},{"alias_kind":"pith_short_16","alias_value":"AMPNLKZ5PGL52DS3","created_at":"2026-05-18T12:26:05.355336+00:00"},{"alias_kind":"pith_short_8","alias_value":"AMPNLKZ5","created_at":"2026-05-18T12:26:05.355336+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/AMPNLKZ5PGL52DS3AH46CYWMMC","json":"https://pith.science/pith/AMPNLKZ5PGL52DS3AH46CYWMMC.json","graph_json":"https://pith.science/api/pith-number/AMPNLKZ5PGL52DS3AH46CYWMMC/graph.json","events_json":"https://pith.science/api/pith-number/AMPNLKZ5PGL52DS3AH46CYWMMC/events.json","paper":"https://pith.science/paper/AMPNLKZ5"},"agent_actions":{"view_html":"https://pith.science/pith/AMPNLKZ5PGL52DS3AH46CYWMMC","download_json":"https://pith.science/pith/AMPNLKZ5PGL52DS3AH46CYWMMC.json","view_paper":"https://pith.science/paper/AMPNLKZ5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1012.1720&json=true","fetch_graph":"https://pith.science/api/pith-number/AMPNLKZ5PGL52DS3AH46CYWMMC/graph.json","fetch_events":"https://pith.science/api/pith-number/AMPNLKZ5PGL52DS3AH46CYWMMC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AMPNLKZ5PGL52DS3AH46CYWMMC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AMPNLKZ5PGL52DS3AH46CYWMMC/action/storage_attestation","attest_author":"https://pith.science/pith/AMPNLKZ5PGL52DS3AH46CYWMMC/action/author_attestation","sign_citation":"https://pith.science/pith/AMPNLKZ5PGL52DS3AH46CYWMMC/action/citation_signature","submit_replication":"https://pith.science/pith/AMPNLKZ5PGL52DS3AH46CYWMMC/action/replication_record"}},"created_at":"2026-05-18T02:23:07.762332+00:00","updated_at":"2026-05-18T02:23:07.762332+00:00"}