{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:BIU746AIZ5VAEDIP7OP4UU3EEA","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":"5e8c5f8e057f0a74885088fac8de89766331a3352bd85efefb28e8b6a7cc5184","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-20T18:11:43Z","title_canon_sha256":"af3fbe467cdb125d9318634f4fdfee6b3747fc93242c9d0e470ebccb9d4353a7"},"schema_version":"1.0","source":{"id":"astro-ph/0206367","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0206367","created_at":"2026-07-04T16:30:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0206367v1","created_at":"2026-07-04T16:30:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0206367","created_at":"2026-07-04T16:30:15Z"},{"alias_kind":"pith_short_12","alias_value":"BIU746AIZ5VA","created_at":"2026-07-04T16:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"BIU746AIZ5VAEDIP","created_at":"2026-07-04T16:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"BIU746AI","created_at":"2026-07-04T16:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:979056983a23d841bd3738ceb7e10afa9cc9e1dea40bfedc7dbc5e6ea7eeaa9d","target":"graph","created_at":"2026-07-04T16:30:15Z","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/astro-ph/0206367/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present spectroscopic observations of candidate F, G and K type stars in NGC 6633, an open cluster with a similar age to the Hyades. We identify 10 new cluster members including one short period binary system. Combining this survey with that of Jeffries (1997), we identify a total of 30 solar-type members. We have used the F and early G stars to spectroscopically estimate [Fe/H]=-0.096+/-0.081 for NGC 6633 and with more precision that NGC 6633 has (0.074+/-0.041) dex less iron than the Pleiades and (0.206+/-0.040) dex less iron than the Hyades. Lithium abundances have been estimated for the","authors_text":"C.P. Deliyannis, E.J. Totten, R.D. Jeffries, S. Harmer","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-06-20T18:11:43Z","title":"Membership, metallicity and lithium abundances for solar-type stars in NGC 6633"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0206367","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":"sha256:0646a443473f0bd0e8ca224f8152aa5e98ebb3d4d1b9bf4c8cb9a25a5704febf","target":"record","created_at":"2026-07-04T16:30:15Z","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":"5e8c5f8e057f0a74885088fac8de89766331a3352bd85efefb28e8b6a7cc5184","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-20T18:11:43Z","title_canon_sha256":"af3fbe467cdb125d9318634f4fdfee6b3747fc93242c9d0e470ebccb9d4353a7"},"schema_version":"1.0","source":{"id":"astro-ph/0206367","kind":"arxiv","version":1}},"canonical_sha256":"0a29fe7808cf6a020d0ffb9fca5364200ac0724e6771a6147baedce4c48e58bf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a29fe7808cf6a020d0ffb9fca5364200ac0724e6771a6147baedce4c48e58bf","first_computed_at":"2026-07-04T16:30:15.179282Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:30:15.179282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SFOnuFuQ/9a8/J3o1SqkWRpyrU/VOoWRvqffjITm4BGkIsPmffsRObftuG6zZcS9RlvS4AhpPPnfEagU2RGOBA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:30:15.179666Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0206367","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0646a443473f0bd0e8ca224f8152aa5e98ebb3d4d1b9bf4c8cb9a25a5704febf","sha256:979056983a23d841bd3738ceb7e10afa9cc9e1dea40bfedc7dbc5e6ea7eeaa9d"],"state_sha256":"f4bbd9d1953d6be2ab9917dc2f419c00b3858260e352fe3dcb1557e9e2ad640a"}