{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:OOVCFVCH2XX2WFFHHWCV2JTLYC","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":"d931593355f5f7bdfdde4cf81961e97487238db7372947e2124417aef5d334c2","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-07-26T18:00:25Z","title_canon_sha256":"b35175a631e698c6c81d866bf07341a10a340839ccc143e2d112425812699741"},"schema_version":"1.0","source":{"id":"2407.19016","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.19016","created_at":"2026-07-05T09:16:19Z"},{"alias_kind":"arxiv_version","alias_value":"2407.19016v2","created_at":"2026-07-05T09:16:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.19016","created_at":"2026-07-05T09:16:19Z"},{"alias_kind":"pith_short_12","alias_value":"OOVCFVCH2XX2","created_at":"2026-07-05T09:16:19Z"},{"alias_kind":"pith_short_16","alias_value":"OOVCFVCH2XX2WFFH","created_at":"2026-07-05T09:16:19Z"},{"alias_kind":"pith_short_8","alias_value":"OOVCFVCH","created_at":"2026-07-05T09:16:19Z"}],"graph_snapshots":[{"event_id":"sha256:2b30ae026bb1930eef0776c127dd80d029a9f3bd469a51af2593525dae026e0a","target":"graph","created_at":"2026-07-05T09:16:19Z","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/2407.19016/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Precise spectroscopic classification of planet hosts is an important tool of exoplanet research at both the population and individual system level. In the era of large-scale surveys, data-driven methods offer an efficient approach to spectroscopic classification that leverages the fact that a subset of stars in any given survey has stellar properties that are known with high fidelity. Here, we use The Cannon, a data-driven framework for modeling stellar spectra, to train a generative model of spectra from the Gaia Data Release 3 Radial Velocity Spectrometer. Our model derives stellar labels wi","authors_text":"Erik Petigura, Isabel Angelo, Megan Bedell, Melissa Ness","cross_cats":["astro-ph.EP","astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-07-26T18:00:25Z","title":"A Data-driven Spectral Model of Main Sequence Stars in Gaia DR3"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.19016","kind":"arxiv","version":2},"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:b6f795e1da569cdc8de439f41a19ec4efb6855254002ce4ef1558ece354a3712","target":"record","created_at":"2026-07-05T09:16:19Z","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":"d931593355f5f7bdfdde4cf81961e97487238db7372947e2124417aef5d334c2","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-07-26T18:00:25Z","title_canon_sha256":"b35175a631e698c6c81d866bf07341a10a340839ccc143e2d112425812699741"},"schema_version":"1.0","source":{"id":"2407.19016","kind":"arxiv","version":2}},"canonical_sha256":"73aa22d447d5efab14a73d855d266bc0948531e11387cc2b37ca0bd72b309724","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"73aa22d447d5efab14a73d855d266bc0948531e11387cc2b37ca0bd72b309724","first_computed_at":"2026-07-05T09:16:19.922205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:16:19.922205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"390mEb/naE1OvVSJMR/dzOBKWJw8sQgr1qXGPIxvEzcNuhOc1znGeTMgCcCBubXOOhfnNA6QSpaWQ83WOC/UDw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:16:19.922620Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.19016","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6f795e1da569cdc8de439f41a19ec4efb6855254002ce4ef1558ece354a3712","sha256:2b30ae026bb1930eef0776c127dd80d029a9f3bd469a51af2593525dae026e0a"],"state_sha256":"9f46e5bda7397f5f9ba1d074469335ee426629e130534e59e13fc2cc32526efb"}