{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:4P374QBXUJAVHXFYIB4DYQW6CL","short_pith_number":"pith:4P374QBX","schema_version":"1.0","canonical_sha256":"e3f7fe4037a24153dcb840783c42de12c87daee41115e58360aee5e8fb335756","source":{"kind":"arxiv","id":"1302.3172","version":2},"attestation_state":"computed","paper":{"title":"Abundance study of the two solar-analogue CoRoT targets HD 42618 and HD 43587 from HARPS spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Barban, E. Poretti, M. Rainer, P. Boumier, T. Morel","submitted_at":"2013-02-13T17:37:47Z","abstract_excerpt":"We present a detailed abundance study based on spectroscopic data obtained with HARPS of two solar-analogue main targets for the asteroseismology programme of the CoRoT satellite: HD 42618 and HD 43587. The atmospheric parameters and chemical composition are accurately determined through a fully differential analysis with respect to the Sun observed with the same instrumental set-up. Several sources of systematic errors largely cancel out with this approach, which allows us to narrow down the 1-sigma error bars to typically 20 K in effective temperature, 0.04 dex in surface gravity, and less t"},"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":"1302.3172","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-13T17:37:47Z","cross_cats_sorted":[],"title_canon_sha256":"4018f9740e7aefff5a9eec7ff8598e27a77846a97f99b75664bfc0daa7c1e30d","abstract_canon_sha256":"1099b0d5f4fa1f325a7582e59bd5e5bf64c441e4588480b7f9e84da9e45e98d7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:41.684287Z","signature_b64":"euMMXO8wShWt/twE8FygqAESqvCIPm2k45Etf4MUscVKqfhj4YM5RBRwJVoStKDm5R93hjbbaJF/2grWX3C9Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3f7fe4037a24153dcb840783c42de12c87daee41115e58360aee5e8fb335756","last_reissued_at":"2026-05-18T01:51:41.683806Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:41.683806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Abundance study of the two solar-analogue CoRoT targets HD 42618 and HD 43587 from HARPS spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Barban, E. Poretti, M. Rainer, P. Boumier, T. Morel","submitted_at":"2013-02-13T17:37:47Z","abstract_excerpt":"We present a detailed abundance study based on spectroscopic data obtained with HARPS of two solar-analogue main targets for the asteroseismology programme of the CoRoT satellite: HD 42618 and HD 43587. The atmospheric parameters and chemical composition are accurately determined through a fully differential analysis with respect to the Sun observed with the same instrumental set-up. Several sources of systematic errors largely cancel out with this approach, which allows us to narrow down the 1-sigma error bars to typically 20 K in effective temperature, 0.04 dex in surface gravity, and less t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.3172","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":"1302.3172","created_at":"2026-05-18T01:51:41.683879+00:00"},{"alias_kind":"arxiv_version","alias_value":"1302.3172v2","created_at":"2026-05-18T01:51:41.683879+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.3172","created_at":"2026-05-18T01:51:41.683879+00:00"},{"alias_kind":"pith_short_12","alias_value":"4P374QBXUJAV","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_16","alias_value":"4P374QBXUJAVHXFY","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_8","alias_value":"4P374QBX","created_at":"2026-05-18T12:27:34.582898+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/4P374QBXUJAVHXFYIB4DYQW6CL","json":"https://pith.science/pith/4P374QBXUJAVHXFYIB4DYQW6CL.json","graph_json":"https://pith.science/api/pith-number/4P374QBXUJAVHXFYIB4DYQW6CL/graph.json","events_json":"https://pith.science/api/pith-number/4P374QBXUJAVHXFYIB4DYQW6CL/events.json","paper":"https://pith.science/paper/4P374QBX"},"agent_actions":{"view_html":"https://pith.science/pith/4P374QBXUJAVHXFYIB4DYQW6CL","download_json":"https://pith.science/pith/4P374QBXUJAVHXFYIB4DYQW6CL.json","view_paper":"https://pith.science/paper/4P374QBX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1302.3172&json=true","fetch_graph":"https://pith.science/api/pith-number/4P374QBXUJAVHXFYIB4DYQW6CL/graph.json","fetch_events":"https://pith.science/api/pith-number/4P374QBXUJAVHXFYIB4DYQW6CL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4P374QBXUJAVHXFYIB4DYQW6CL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4P374QBXUJAVHXFYIB4DYQW6CL/action/storage_attestation","attest_author":"https://pith.science/pith/4P374QBXUJAVHXFYIB4DYQW6CL/action/author_attestation","sign_citation":"https://pith.science/pith/4P374QBXUJAVHXFYIB4DYQW6CL/action/citation_signature","submit_replication":"https://pith.science/pith/4P374QBXUJAVHXFYIB4DYQW6CL/action/replication_record"}},"created_at":"2026-05-18T01:51:41.683879+00:00","updated_at":"2026-05-18T01:51:41.683879+00:00"}