{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:6K7RG4I4WNNMG5FFB4LLVVN6CE","short_pith_number":"pith:6K7RG4I4","schema_version":"1.0","canonical_sha256":"f2bf13711cb35ac374a50f16bad5be11329e59cbea54b85f2ec085445cd1eb0c","source":{"kind":"arxiv","id":"0904.3092","version":2},"attestation_state":"computed","paper":{"title":"On the Metal-Richness of M Dwarfs with Planets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"John A. Johnson, Kevin Apps","submitted_at":"2009-04-20T19:18:59Z","abstract_excerpt":"Knowledge of the metallicities of M dwarfs rests predominantly on the photometric calibration of Bonfils and collaborators, which predicts that M dwarfs in the solar neighborhood, including those with known planets, are systematically metal-poor compared to their higher-mass counterparts. We test this prediction using a volume-limited sample of low-mass stars, together with a subset of M dwarfs with high-metallicity, F, G amd K wide binary companions. We find that the Bonfils et al. photometric calibration systematically underestimates the metallicities of our high-metallicity M dwarfs by an a"},"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":"0904.3092","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-04-20T19:18:59Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"3d243c0bc0706b8dbde76d13a662de7a69c49fccbb31430fe9722ef990379bbf","abstract_canon_sha256":"7187f42347d191fd54b24ebfe0c0d77196bbc8fe39bf34b9859022a102131fa5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:43.403484Z","signature_b64":"6zaKNFDAUuFtWHxH3eRg5UhPeinbuoO/MdEXd+O1XI31Z3BpyDnQ62DZxsjch5ls+MGTOAKMbMWPQLuYszYAAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2bf13711cb35ac374a50f16bad5be11329e59cbea54b85f2ec085445cd1eb0c","last_reissued_at":"2026-05-18T04:29:43.402998Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:43.402998Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the Metal-Richness of M Dwarfs with Planets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"John A. Johnson, Kevin Apps","submitted_at":"2009-04-20T19:18:59Z","abstract_excerpt":"Knowledge of the metallicities of M dwarfs rests predominantly on the photometric calibration of Bonfils and collaborators, which predicts that M dwarfs in the solar neighborhood, including those with known planets, are systematically metal-poor compared to their higher-mass counterparts. We test this prediction using a volume-limited sample of low-mass stars, together with a subset of M dwarfs with high-metallicity, F, G amd K wide binary companions. We find that the Bonfils et al. photometric calibration systematically underestimates the metallicities of our high-metallicity M dwarfs by an a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.3092","kind":"arxiv","version":2},"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":"0904.3092","created_at":"2026-05-18T04:29:43.403073+00:00"},{"alias_kind":"arxiv_version","alias_value":"0904.3092v2","created_at":"2026-05-18T04:29:43.403073+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.3092","created_at":"2026-05-18T04:29:43.403073+00:00"},{"alias_kind":"pith_short_12","alias_value":"6K7RG4I4WNNM","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_16","alias_value":"6K7RG4I4WNNMG5FF","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_8","alias_value":"6K7RG4I4","created_at":"2026-05-18T12:25:58.837520+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/6K7RG4I4WNNMG5FFB4LLVVN6CE","json":"https://pith.science/pith/6K7RG4I4WNNMG5FFB4LLVVN6CE.json","graph_json":"https://pith.science/api/pith-number/6K7RG4I4WNNMG5FFB4LLVVN6CE/graph.json","events_json":"https://pith.science/api/pith-number/6K7RG4I4WNNMG5FFB4LLVVN6CE/events.json","paper":"https://pith.science/paper/6K7RG4I4"},"agent_actions":{"view_html":"https://pith.science/pith/6K7RG4I4WNNMG5FFB4LLVVN6CE","download_json":"https://pith.science/pith/6K7RG4I4WNNMG5FFB4LLVVN6CE.json","view_paper":"https://pith.science/paper/6K7RG4I4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0904.3092&json=true","fetch_graph":"https://pith.science/api/pith-number/6K7RG4I4WNNMG5FFB4LLVVN6CE/graph.json","fetch_events":"https://pith.science/api/pith-number/6K7RG4I4WNNMG5FFB4LLVVN6CE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6K7RG4I4WNNMG5FFB4LLVVN6CE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6K7RG4I4WNNMG5FFB4LLVVN6CE/action/storage_attestation","attest_author":"https://pith.science/pith/6K7RG4I4WNNMG5FFB4LLVVN6CE/action/author_attestation","sign_citation":"https://pith.science/pith/6K7RG4I4WNNMG5FFB4LLVVN6CE/action/citation_signature","submit_replication":"https://pith.science/pith/6K7RG4I4WNNMG5FFB4LLVVN6CE/action/replication_record"}},"created_at":"2026-05-18T04:29:43.403073+00:00","updated_at":"2026-05-18T04:29:43.403073+00:00"}