{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:GTSESLF6V67RQBDXX7TYWEIBQH","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":"72ce86f1f15eb2de0fa2139e5a40bcbcf5473b88bbb7f5956220b303b4552f64","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-02-10T14:28:42Z","title_canon_sha256":"f2428499c935bad7e9d0e50930121c940576f968476200a2eb5538cfb7301884"},"schema_version":"1.0","source":{"id":"2502.06512","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.06512","created_at":"2026-07-05T10:12:07Z"},{"alias_kind":"arxiv_version","alias_value":"2502.06512v1","created_at":"2026-07-05T10:12:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.06512","created_at":"2026-07-05T10:12:07Z"},{"alias_kind":"pith_short_12","alias_value":"GTSESLF6V67R","created_at":"2026-07-05T10:12:07Z"},{"alias_kind":"pith_short_16","alias_value":"GTSESLF6V67RQBDX","created_at":"2026-07-05T10:12:07Z"},{"alias_kind":"pith_short_8","alias_value":"GTSESLF6","created_at":"2026-07-05T10:12:07Z"}],"graph_snapshots":[{"event_id":"sha256:4999824018e94c505ab54e61975fc281d76d8390f42d30017024feadfa8b49fd","target":"graph","created_at":"2026-07-05T10:12:07Z","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/2502.06512/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate determinations of metallicity for large, complete stellar samples are essential for advancing various studies of the Milky Way. In this paper, we present a data-driven algorithm that leverages photometric data from the KiDS and the VIKING surveys to estimate stellar absolute magnitude, effective temperature and metallicities. The algorithm is trained and validated using spectroscopic data from LAMOST, SEGUE, APOGEE, and GALAH, as well as a catalog of very metal-poor stars from the literature, and Gaia EDR3 data. This approach enables us to estimate metallicities, effective temperature","authors_text":"Bao-Kun Sun, Bing-Qiu Chen, Xiao-Wei Liu","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-02-10T14:28:42Z","title":"Photometric metallicities of 0.8 million KiDS stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.06512","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":"sha256:5f1e4efd377879ac3f475de69a4a306aace15234efda0d81941267b575f07305","target":"record","created_at":"2026-07-05T10:12:07Z","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":"72ce86f1f15eb2de0fa2139e5a40bcbcf5473b88bbb7f5956220b303b4552f64","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-02-10T14:28:42Z","title_canon_sha256":"f2428499c935bad7e9d0e50930121c940576f968476200a2eb5538cfb7301884"},"schema_version":"1.0","source":{"id":"2502.06512","kind":"arxiv","version":1}},"canonical_sha256":"34e4492cbeafbf180477bfe78b110181cb6cc77df4eb59c12a634c1b8904db58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34e4492cbeafbf180477bfe78b110181cb6cc77df4eb59c12a634c1b8904db58","first_computed_at":"2026-07-05T10:12:07.836571Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:12:07.836571Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rFkZVCuffzShBMIXjLmOHdRN+PU0qn9FUlwxCoyUPh2Swgj81n8igOjys+ZbtfYUZcejJ0SVXJ2KnVJFUTnoAg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:12:07.837062Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.06512","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f1e4efd377879ac3f475de69a4a306aace15234efda0d81941267b575f07305","sha256:4999824018e94c505ab54e61975fc281d76d8390f42d30017024feadfa8b49fd"],"state_sha256":"b321a88a24306e4111639dfe27e5029e405a6b94780f425fb97de8819281f6ca"}