{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:7NRZGR4KSQGN2E44XYNMQW6E2V","short_pith_number":"pith:7NRZGR4K","schema_version":"1.0","canonical_sha256":"fb6393478a940cdd139cbe1ac85bc4d561a724bb32ec24245daa23753041ed28","source":{"kind":"arxiv","id":"2001.08227","version":2},"attestation_state":"computed","paper":{"title":"Abundances in the Milky Way across five nucleosynthetic channels from 4 million LAMOST stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Adam Wheeler, D. B. Zucker, Gayandhi De Silva, Geraint F. Lewis, Janez Kos, Jeffrey D. Simpson, Joss Bland-Hawthorn, Melissa Ness, Michael Hayden, Sanjib Sharma, Sarah Martell, Sven Buder, Thoma\\v{z} Zwitter","submitted_at":"2020-01-22T19:00:09Z","abstract_excerpt":"Large stellar surveys are revealing the chemodynamical structure of the Galaxy across a vast spatial extent. However, the many millions of low-resolution spectra observed to date are yet to be fully exploited. We employ The Cannon, a data-driven approach to estimating abundances, to obtain detailed abundances from low-resolution (R = 1800) LAMOST spectra, using the GALAH survey as our reference. We deliver five (for dwarfs) or six (for giants) estimated abundances representing five different nucleosynthetic channels, for 3.9 million stars, to a precision of 0.05 - 0.23 dex. Using wide binary p"},"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":"2001.08227","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-22T19:00:09Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"817c2391504374b18a07b7843f3f03b4b5b2b99eed0d0c81e4e6f6b4ab6e2cbe","abstract_canon_sha256":"01944ff37a1d6e6cc93ed9ec88d92064c1d896d3b8c5b84b0f7381156283f7f9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:22:40.077156Z","signature_b64":"lzQNHgGzhKJmaU7r70jo10PjjqB2f5I9Qb+aV7mK/KT30d/w4nGVxqWB77Ypyymg1+8wjTKqW5u4JE7OfTUMBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb6393478a940cdd139cbe1ac85bc4d561a724bb32ec24245daa23753041ed28","last_reissued_at":"2026-07-05T01:22:40.076666Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:22:40.076666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Abundances in the Milky Way across five nucleosynthetic channels from 4 million LAMOST stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Adam Wheeler, D. B. Zucker, Gayandhi De Silva, Geraint F. Lewis, Janez Kos, Jeffrey D. Simpson, Joss Bland-Hawthorn, Melissa Ness, Michael Hayden, Sanjib Sharma, Sarah Martell, Sven Buder, Thoma\\v{z} Zwitter","submitted_at":"2020-01-22T19:00:09Z","abstract_excerpt":"Large stellar surveys are revealing the chemodynamical structure of the Galaxy across a vast spatial extent. However, the many millions of low-resolution spectra observed to date are yet to be fully exploited. We employ The Cannon, a data-driven approach to estimating abundances, to obtain detailed abundances from low-resolution (R = 1800) LAMOST spectra, using the GALAH survey as our reference. We deliver five (for dwarfs) or six (for giants) estimated abundances representing five different nucleosynthetic channels, for 3.9 million stars, to a precision of 0.05 - 0.23 dex. Using wide binary p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.08227","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2001.08227/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2001.08227","created_at":"2026-07-05T01:22:40.076726+00:00"},{"alias_kind":"arxiv_version","alias_value":"2001.08227v2","created_at":"2026-07-05T01:22:40.076726+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.08227","created_at":"2026-07-05T01:22:40.076726+00:00"},{"alias_kind":"pith_short_12","alias_value":"7NRZGR4KSQGN","created_at":"2026-07-05T01:22:40.076726+00:00"},{"alias_kind":"pith_short_16","alias_value":"7NRZGR4KSQGN2E44","created_at":"2026-07-05T01:22:40.076726+00:00"},{"alias_kind":"pith_short_8","alias_value":"7NRZGR4K","created_at":"2026-07-05T01:22:40.076726+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/7NRZGR4KSQGN2E44XYNMQW6E2V","json":"https://pith.science/pith/7NRZGR4KSQGN2E44XYNMQW6E2V.json","graph_json":"https://pith.science/api/pith-number/7NRZGR4KSQGN2E44XYNMQW6E2V/graph.json","events_json":"https://pith.science/api/pith-number/7NRZGR4KSQGN2E44XYNMQW6E2V/events.json","paper":"https://pith.science/paper/7NRZGR4K"},"agent_actions":{"view_html":"https://pith.science/pith/7NRZGR4KSQGN2E44XYNMQW6E2V","download_json":"https://pith.science/pith/7NRZGR4KSQGN2E44XYNMQW6E2V.json","view_paper":"https://pith.science/paper/7NRZGR4K","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2001.08227&json=true","fetch_graph":"https://pith.science/api/pith-number/7NRZGR4KSQGN2E44XYNMQW6E2V/graph.json","fetch_events":"https://pith.science/api/pith-number/7NRZGR4KSQGN2E44XYNMQW6E2V/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7NRZGR4KSQGN2E44XYNMQW6E2V/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7NRZGR4KSQGN2E44XYNMQW6E2V/action/storage_attestation","attest_author":"https://pith.science/pith/7NRZGR4KSQGN2E44XYNMQW6E2V/action/author_attestation","sign_citation":"https://pith.science/pith/7NRZGR4KSQGN2E44XYNMQW6E2V/action/citation_signature","submit_replication":"https://pith.science/pith/7NRZGR4KSQGN2E44XYNMQW6E2V/action/replication_record"}},"created_at":"2026-07-05T01:22:40.076726+00:00","updated_at":"2026-07-05T01:22:40.076726+00:00"}