{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:6ZUEDKKJMHGVGETGQ3U5YUFG3V","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":"639029e09f14da76e70b2d530575beda04be0691aadb7c1fe576cef47f1b4a46","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-08-01T13:37:54Z","title_canon_sha256":"840b2f3f817e3d37fdcd253018f9920d07512a5399f74ee8cfc8a4537b258728"},"schema_version":"1.0","source":{"id":"astro-ph/0308016","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0308016","created_at":"2026-05-18T01:59:33Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0308016v1","created_at":"2026-05-18T01:59:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0308016","created_at":"2026-05-18T01:59:33Z"},{"alias_kind":"pith_short_12","alias_value":"6ZUEDKKJMHGV","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"6ZUEDKKJMHGVGETG","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"6ZUEDKKJ","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:14966be4391de6b40d8987d84fba6d3550c481dd274ab38eb8cd90fb8b1580f3","target":"graph","created_at":"2026-05-18T01:59:33Z","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":"I review the status of the search for extremely metal-poor halo stars with the Hamburg/ESO objective-prism survey (HES). 2194 candidate metal-poor turn-off stars and 6133 giants in the magnitude range 14 < B < 17.5 have been selected from 329 (out of 380) HES fields, covering an effective area of 6400 square degrees in the southern extragalactic sky. Moderate-resolution follow-up observations for 3200 candidates have been obtained so far, and ~200 new stars with [Fe/H] <- 3.0 have been found, which trebles the total number of such extremely low-metallicity stars identified by all previous surv","authors_text":"Germany), Norbert Christlieb (Hamburger Sternwarte","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-08-01T13:37:54Z","title":"Finding the Most Metal-poor Stars of the Galactic Halo with the Hamburg/ESO Objective-Prism Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0308016","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":"sha256:12001ced5716a1f3e7d6d1e5923ce63f9defecd32ad2e709ed49b2e670ce6cf8","target":"record","created_at":"2026-05-18T01:59:33Z","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":"639029e09f14da76e70b2d530575beda04be0691aadb7c1fe576cef47f1b4a46","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-08-01T13:37:54Z","title_canon_sha256":"840b2f3f817e3d37fdcd253018f9920d07512a5399f74ee8cfc8a4537b258728"},"schema_version":"1.0","source":{"id":"astro-ph/0308016","kind":"arxiv","version":1}},"canonical_sha256":"f66841a94961cd53126686e9dc50a6dd6ad44c4a1235f3970128165f696348fa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f66841a94961cd53126686e9dc50a6dd6ad44c4a1235f3970128165f696348fa","first_computed_at":"2026-05-18T01:59:33.892988Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:33.892988Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5bJs9TUJ97sba20uF2nxbtKVn59g/gntzlzhMKxygCC3MfqPl/OI9zpX/oplc7Kt06j/RzaCZKwez+6V5pjpDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:33.893586Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0308016","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12001ced5716a1f3e7d6d1e5923ce63f9defecd32ad2e709ed49b2e670ce6cf8","sha256:14966be4391de6b40d8987d84fba6d3550c481dd274ab38eb8cd90fb8b1580f3"],"state_sha256":"fe9dfb3cfdf08dd5e887148a090f49d2f750a1deeca67d4373d4ceae593ad1cb"}