{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:AMKPLPGP5ON65L75TWGL5SK3YU","short_pith_number":"pith:AMKPLPGP","schema_version":"1.0","canonical_sha256":"0314f5bccfeb9beeaffd9d8cbec95bc508c1325ff1726d40ef6016925a3b41bf","source":{"kind":"arxiv","id":"1209.2412","version":1},"attestation_state":"computed","paper":{"title":"C/O ratio as a Dimension for Characterizing Exoplanetary Atmospheres","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Nikku Madhusudhan (Yale University)","submitted_at":"2012-09-11T20:00:00Z","abstract_excerpt":"Until recently, infrared observations of exoplanetary atmospheres have typically been interpreted using models that assumed solar elemental abundances. With the chemical composition fixed, attempts have been made to classify hot Jupiter atmospheres on the basis of stellar irradiation. However, recent observations have revealed deviations from predictions based on such classification schemes, and chemical compositions retrieved from some datasets have also indicated non-solar abundances. In hot hydrogen-dominated atmospheres, the C/O ratio critically influences the relative concentrations of se"},"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":"1209.2412","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-09-11T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"696b2b7cb6f4d29485df30f3bfb09515fe7730a0e18d47b185367b095f48bcf8","abstract_canon_sha256":"fb63a25faa4e010aa4a054857e8f77bfb97477a44847124f3ddd57ad373f7ba4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:30.335281Z","signature_b64":"+VXYF4g7jbKcfbt08CduKjT9pwS+ShyffHrKA4pLXBR5m+rEX9UCO1bFT6ynCAeQajEyV0o4L+rekdOpBfc7Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0314f5bccfeb9beeaffd9d8cbec95bc508c1325ff1726d40ef6016925a3b41bf","last_reissued_at":"2026-05-18T01:54:30.334779Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:30.334779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"C/O ratio as a Dimension for Characterizing Exoplanetary Atmospheres","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Nikku Madhusudhan (Yale University)","submitted_at":"2012-09-11T20:00:00Z","abstract_excerpt":"Until recently, infrared observations of exoplanetary atmospheres have typically been interpreted using models that assumed solar elemental abundances. With the chemical composition fixed, attempts have been made to classify hot Jupiter atmospheres on the basis of stellar irradiation. However, recent observations have revealed deviations from predictions based on such classification schemes, and chemical compositions retrieved from some datasets have also indicated non-solar abundances. In hot hydrogen-dominated atmospheres, the C/O ratio critically influences the relative concentrations of se"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2412","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":"1209.2412","created_at":"2026-05-18T01:54:30.334862+00:00"},{"alias_kind":"arxiv_version","alias_value":"1209.2412v1","created_at":"2026-05-18T01:54:30.334862+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2412","created_at":"2026-05-18T01:54:30.334862+00:00"},{"alias_kind":"pith_short_12","alias_value":"AMKPLPGP5ON6","created_at":"2026-05-18T12:26:58.693483+00:00"},{"alias_kind":"pith_short_16","alias_value":"AMKPLPGP5ON65L75","created_at":"2026-05-18T12:26:58.693483+00:00"},{"alias_kind":"pith_short_8","alias_value":"AMKPLPGP","created_at":"2026-05-18T12:26:58.693483+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":2,"sample":[{"citing_arxiv_id":"2605.18131","citing_title":"Inferring stellar metallicity and elemental abundances from kinematic and spectroscopic data using machine learning -- Implications for exoplanet host stars","ref_index":75,"is_internal_anchor":true},{"citing_arxiv_id":"2603.07481","citing_title":"New Way to Date Globular Clusters: Brown Dwarf Cooling Sequences","ref_index":100,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU","json":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU.json","graph_json":"https://pith.science/api/pith-number/AMKPLPGP5ON65L75TWGL5SK3YU/graph.json","events_json":"https://pith.science/api/pith-number/AMKPLPGP5ON65L75TWGL5SK3YU/events.json","paper":"https://pith.science/paper/AMKPLPGP"},"agent_actions":{"view_html":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU","download_json":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU.json","view_paper":"https://pith.science/paper/AMKPLPGP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1209.2412&json=true","fetch_graph":"https://pith.science/api/pith-number/AMKPLPGP5ON65L75TWGL5SK3YU/graph.json","fetch_events":"https://pith.science/api/pith-number/AMKPLPGP5ON65L75TWGL5SK3YU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU/action/storage_attestation","attest_author":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU/action/author_attestation","sign_citation":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU/action/citation_signature","submit_replication":"https://pith.science/pith/AMKPLPGP5ON65L75TWGL5SK3YU/action/replication_record"}},"created_at":"2026-05-18T01:54:30.334862+00:00","updated_at":"2026-05-18T01:54:30.334862+00:00"}