{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VGRLWH5RJEQZKFNKC23CMQCTD3","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"d99fcad165ac14d3f7969b29166d25483370eea7f42bce8a3454386c293d6f30","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-26T15:17:16Z","title_canon_sha256":"1cd2e678e4e279e3315ecbb2bdd3387ea1bbe2eec05f8a7c20645b6b64f38955"},"schema_version":"1.0","source":{"id":"1908.09727","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.09727","created_at":"2026-07-05T00:31:16Z"},{"alias_kind":"arxiv_version","alias_value":"1908.09727v1","created_at":"2026-07-05T00:31:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.09727","created_at":"2026-07-05T00:31:16Z"},{"alias_kind":"pith_short_12","alias_value":"VGRLWH5RJEQZ","created_at":"2026-07-05T00:31:16Z"},{"alias_kind":"pith_short_16","alias_value":"VGRLWH5RJEQZKFNK","created_at":"2026-07-05T00:31:16Z"},{"alias_kind":"pith_short_8","alias_value":"VGRLWH5R","created_at":"2026-07-05T00:31:16Z"}],"graph_snapshots":[{"event_id":"sha256:95013450af8c97c2dec50e3c57fc2836e82481ed4c8aa64cc70dd05ef95851e6","target":"graph","created_at":"2026-07-05T00:31:16Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.09727/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the determination of stellar parameters and individual elemental abundances for 6 million stars from $\\sim$8 million low-resolution ($R\\sim1800$) spectra from LAMOST DR5. This is based on a modeling approach that we dub $The$ $Data$--$Driven$ $Payne$ ($DD$--$Payne$), which inherits essential ingredients from both {\\it The Payne} \\citep{Ting2019} and $The$ $Cannon$ \\citep{Ness2015}. It is a data-driven model that incorporates constraints from theoretical spectral models to ensure the derived abundance estimates are physically sensible. Stars in LAMOST DR5 that are in common with eith","authors_text":"Hans-Walter Rix, Hua-Wei Zhang, Jian-rong Shi, Karin Lind, Maosheng Xiang, Nathan Sandford, Sven Buder, Xiao-Wei Liu, Yuan-Sen Ting","cross_cats":["astro-ph.GA","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-26T15:17:16Z","title":"Abundance Estimates for 16 Elements in 6 Million Stars from LAMOST DR5 Low-Resolution Spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.09727","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d3e8c0bb7e00c4604d94f57d0b44eeb61fc8ad1dd39a4f0f1d2551371340456c","target":"record","created_at":"2026-07-05T00:31:16Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"d99fcad165ac14d3f7969b29166d25483370eea7f42bce8a3454386c293d6f30","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-26T15:17:16Z","title_canon_sha256":"1cd2e678e4e279e3315ecbb2bdd3387ea1bbe2eec05f8a7c20645b6b64f38955"},"schema_version":"1.0","source":{"id":"1908.09727","kind":"arxiv","version":1}},"canonical_sha256":"a9a2bb1fb149219515aa16b62640531ee90828729e3b1eae20a62a4fa7427cc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9a2bb1fb149219515aa16b62640531ee90828729e3b1eae20a62a4fa7427cc1","first_computed_at":"2026-07-05T00:31:16.855180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:31:16.855180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Agwl7Mcs6JchYyKSeJoAuf1VvD7MdLTMgrQcDxqC3CBLPV6rGrQUVNkKihq+0exa2zTp5JKFzHNZMETLlzIvBA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:31:16.855763Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.09727","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3e8c0bb7e00c4604d94f57d0b44eeb61fc8ad1dd39a4f0f1d2551371340456c","sha256:95013450af8c97c2dec50e3c57fc2836e82481ed4c8aa64cc70dd05ef95851e6"],"state_sha256":"88586741bdd33c6cba4d1645addf3474515c2f7f4f9fed56539446250f1618f9"}