{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:CTLCM6WS4VATD2QI3LZCK5ZZQY","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":"ebff4c51e510c6802bd6fe72f0e46b85795e9e72785964c4c05f61aba667ea1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-03-07T13:22:13Z","title_canon_sha256":"7c838310491a13b7e7fe7fc6ed8cd8b26246eeca00ee359d36cdfcfa7dca3730"},"schema_version":"1.0","source":{"id":"1203.1461","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1461","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1461v1","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1461","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"pith_short_12","alias_value":"CTLCM6WS4VAT","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CTLCM6WS4VATD2QI","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CTLCM6WS","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:798f70bef41686ce3b5b932d976a8b1a166d6e72168cf8d712cd701eb1cea8ae","target":"graph","created_at":"2026-05-18T04:00:38Z","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"},"paper":{"abstract_excerpt":"In this study, we aim to reveal the nature of the Sloan Digital Sky Survey (SDSS) star: SDSS J100921.40+375233.9, suspected to have an extremely low metallicity. We observed this star at high spectral resolution and performed an abundance analysis. We derived the spectroscopic parameters Teff =5820+-125 K, log g = 3.9+-0.2, and xi = 1.1+-0.5 km/s. The star is consistent with belonging to the thick disk.","authors_text":"Carlos Allende Prieto, David L. Lambert, Timur Sahin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-03-07T13:22:13Z","title":"Spectroscopic investigation of SDSS J100921.40+375233.9 selected from SDSS and GALEX photometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1461","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:f19806ba2e1ea2718191ccc3f2e3db312dbd3ddcd98287854760b84941beb460","target":"record","created_at":"2026-05-18T04:00:38Z","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":"ebff4c51e510c6802bd6fe72f0e46b85795e9e72785964c4c05f61aba667ea1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-03-07T13:22:13Z","title_canon_sha256":"7c838310491a13b7e7fe7fc6ed8cd8b26246eeca00ee359d36cdfcfa7dca3730"},"schema_version":"1.0","source":{"id":"1203.1461","kind":"arxiv","version":1}},"canonical_sha256":"14d6267ad2e54131ea08daf2257739862a50b73021deb4fc0b4f7ac924d425fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14d6267ad2e54131ea08daf2257739862a50b73021deb4fc0b4f7ac924d425fe","first_computed_at":"2026-05-18T04:00:38.666963Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:38.666963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SU8WZJg/+QheOU2i5dxzv3JbFHDXpHbvI2fEO2NnjBVZiRu2oUuP40D6tcPyg5qZkLP6I9+Bg9HaWwirWlzuDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:38.667699Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.1461","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f19806ba2e1ea2718191ccc3f2e3db312dbd3ddcd98287854760b84941beb460","sha256:798f70bef41686ce3b5b932d976a8b1a166d6e72168cf8d712cd701eb1cea8ae"],"state_sha256":"d7c05cd68d32536ce360b8c83424c7208f3c1c70c8ddea089ae6cfc1eb13cf79"}