{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:6IY74NRVDRLXSLBHTZDGGA4OPY","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":"5a26f0b61ec1a5553b5db5091136b1478b754d02e8fcb010111c40c058154af2","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-07-06T18:00:00Z","title_canon_sha256":"7e03bb8083d74e33ce71d1ff0f3ef68078c4fca4cc9b018dcc3594e4279a4792"},"schema_version":"1.0","source":{"id":"2007.02942","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.02942","created_at":"2026-07-05T01:24:38Z"},{"alias_kind":"arxiv_version","alias_value":"2007.02942v1","created_at":"2026-07-05T01:24:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.02942","created_at":"2026-07-05T01:24:38Z"},{"alias_kind":"pith_short_12","alias_value":"6IY74NRVDRLX","created_at":"2026-07-05T01:24:38Z"},{"alias_kind":"pith_short_16","alias_value":"6IY74NRVDRLXSLBH","created_at":"2026-07-05T01:24:38Z"},{"alias_kind":"pith_short_8","alias_value":"6IY74NRV","created_at":"2026-07-05T01:24:38Z"}],"graph_snapshots":[{"event_id":"sha256:adb2fab405adba712610699f1bf136578b8766f47eb370a759b051f47ba11a62","target":"graph","created_at":"2026-07-05T01:24:38Z","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/2007.02942/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"To accurately interpret the observed properties of exoplanets, it is necessary to first obtain a detailed understanding of host star properties. However, physical models that analyze stellar properties on a per-star basis can become computationally intractable for sufficiently large samples. Furthermore, these models are limited by the wavelength coverage of available spectra. We combine previously derived spectral properties from the Spectroscopic Properties of Cool Stars (SPOCS) catalog (Brewer et al. 2016) with generative modeling using The Cannon to produce a model capable of deriving stel","authors_text":"John Brewer, Malena Rice","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-07-06T18:00:00Z","title":"Stellar Characterization of Keck HIRES Spectra with The Cannon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.02942","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:b5041be6861a7eb7ee81410228a4865b2a5de1d94da525cfc7e2762cd2f6745a","target":"record","created_at":"2026-07-05T01:24:38Z","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":"5a26f0b61ec1a5553b5db5091136b1478b754d02e8fcb010111c40c058154af2","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-07-06T18:00:00Z","title_canon_sha256":"7e03bb8083d74e33ce71d1ff0f3ef68078c4fca4cc9b018dcc3594e4279a4792"},"schema_version":"1.0","source":{"id":"2007.02942","kind":"arxiv","version":1}},"canonical_sha256":"f231fe36351c57792c279e4663038e7e0996dd6c23b5d94173c2341150a3dd7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f231fe36351c57792c279e4663038e7e0996dd6c23b5d94173c2341150a3dd7e","first_computed_at":"2026-07-05T01:24:38.774396Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:24:38.774396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x2kV2vJQiBIm2lc3B85Hbn6vHnEfkRS1wV7sZeZvs/669SYZTEOnhecuWSN6RrFTZVCn6dzKggjK3DdjJO6FAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:24:38.774803Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.02942","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5041be6861a7eb7ee81410228a4865b2a5de1d94da525cfc7e2762cd2f6745a","sha256:adb2fab405adba712610699f1bf136578b8766f47eb370a759b051f47ba11a62"],"state_sha256":"9d8f73c8773c062686ed858bab967a6ee16939b2a95bd3e42ffd206b55915243"}