{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:L6F24GJ3KLDGP2M2DAJR5EJNUP","short_pith_number":"pith:L6F24GJ3","schema_version":"1.0","canonical_sha256":"5f8bae193b52c667e99a18131e912da3e0aabd694d526ddc43de7c27c44b098d","source":{"kind":"arxiv","id":"1712.06409","version":1},"attestation_state":"computed","paper":{"title":"Stellar Spin-Orbit Alignment for Kepler-9, a Multi-transiting Planetary system with Two Outer Planets Near 2:1 Resonance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew W. Howard, Brett Addison, Debra A. Fischer, Gregory Laughlin, Howard Isaacson, John M. Brewer, Songhu Wang","submitted_at":"2017-12-18T14:16:53Z","abstract_excerpt":"We present spectroscopic measurements of the Rossiter-McLaughlin effect for the planet b of Kepler-9 multi-transiting planet system. The resulting sky-projected spin-orbit angle is $\\lambda=-13^{\\circ} \\pm 16^{\\circ}$, which favors an aligned system and strongly disfavors highly misaligned, polar, and retrograde orbits. Including Kepler-9, there are now a total of 4 Rossiter-McLaughlin effect measurements for multiplanet systems, all of which are consistent with spin-orbit alignment."},"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":"1712.06409","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-12-18T14:16:53Z","cross_cats_sorted":[],"title_canon_sha256":"0be540cf659b3eab2222159be0db94c3ad4f9ca4fca68c915cde8d47adf53508","abstract_canon_sha256":"97785a0d0300a5e7ae0ed42a5c9d368653ba3cc5dae461af9aac0a1ea83f8fb0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:47.396308Z","signature_b64":"zzenT7aJ8fm6Was8lQvDAPy31gyE+Z9j6eTPzb1RngDdPOXpC07JSYJ+vmGqKX2TjP7aH1g2C2ffRrrCaCLoCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f8bae193b52c667e99a18131e912da3e0aabd694d526ddc43de7c27c44b098d","last_reissued_at":"2026-05-18T00:24:47.395740Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:47.395740Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Stellar Spin-Orbit Alignment for Kepler-9, a Multi-transiting Planetary system with Two Outer Planets Near 2:1 Resonance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew W. Howard, Brett Addison, Debra A. Fischer, Gregory Laughlin, Howard Isaacson, John M. Brewer, Songhu Wang","submitted_at":"2017-12-18T14:16:53Z","abstract_excerpt":"We present spectroscopic measurements of the Rossiter-McLaughlin effect for the planet b of Kepler-9 multi-transiting planet system. The resulting sky-projected spin-orbit angle is $\\lambda=-13^{\\circ} \\pm 16^{\\circ}$, which favors an aligned system and strongly disfavors highly misaligned, polar, and retrograde orbits. Including Kepler-9, there are now a total of 4 Rossiter-McLaughlin effect measurements for multiplanet systems, all of which are consistent with spin-orbit alignment."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.06409","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":"1712.06409","created_at":"2026-05-18T00:24:47.395844+00:00"},{"alias_kind":"arxiv_version","alias_value":"1712.06409v1","created_at":"2026-05-18T00:24:47.395844+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.06409","created_at":"2026-05-18T00:24:47.395844+00:00"},{"alias_kind":"pith_short_12","alias_value":"L6F24GJ3KLDG","created_at":"2026-05-18T12:31:28.150371+00:00"},{"alias_kind":"pith_short_16","alias_value":"L6F24GJ3KLDGP2M2","created_at":"2026-05-18T12:31:28.150371+00:00"},{"alias_kind":"pith_short_8","alias_value":"L6F24GJ3","created_at":"2026-05-18T12:31:28.150371+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/L6F24GJ3KLDGP2M2DAJR5EJNUP","json":"https://pith.science/pith/L6F24GJ3KLDGP2M2DAJR5EJNUP.json","graph_json":"https://pith.science/api/pith-number/L6F24GJ3KLDGP2M2DAJR5EJNUP/graph.json","events_json":"https://pith.science/api/pith-number/L6F24GJ3KLDGP2M2DAJR5EJNUP/events.json","paper":"https://pith.science/paper/L6F24GJ3"},"agent_actions":{"view_html":"https://pith.science/pith/L6F24GJ3KLDGP2M2DAJR5EJNUP","download_json":"https://pith.science/pith/L6F24GJ3KLDGP2M2DAJR5EJNUP.json","view_paper":"https://pith.science/paper/L6F24GJ3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1712.06409&json=true","fetch_graph":"https://pith.science/api/pith-number/L6F24GJ3KLDGP2M2DAJR5EJNUP/graph.json","fetch_events":"https://pith.science/api/pith-number/L6F24GJ3KLDGP2M2DAJR5EJNUP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/L6F24GJ3KLDGP2M2DAJR5EJNUP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/L6F24GJ3KLDGP2M2DAJR5EJNUP/action/storage_attestation","attest_author":"https://pith.science/pith/L6F24GJ3KLDGP2M2DAJR5EJNUP/action/author_attestation","sign_citation":"https://pith.science/pith/L6F24GJ3KLDGP2M2DAJR5EJNUP/action/citation_signature","submit_replication":"https://pith.science/pith/L6F24GJ3KLDGP2M2DAJR5EJNUP/action/replication_record"}},"created_at":"2026-05-18T00:24:47.395844+00:00","updated_at":"2026-05-18T00:24:47.395844+00:00"}