{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:QYKJBT6DH57XNCMR36HMNCLTQF","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":"a0fe4b973dbe8afcee86dae875a4b2db458868560f7db17c6c974cd83bb7c5fb","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-06T09:08:39Z","title_canon_sha256":"e6be44fe1ac9bc2e39fef68b8879980457800493056e737a00829dd37ccfe9db"},"schema_version":"1.0","source":{"id":"1504.01240","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01240","created_at":"2026-05-18T02:03:33Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01240v2","created_at":"2026-05-18T02:03:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01240","created_at":"2026-05-18T02:03:33Z"},{"alias_kind":"pith_short_12","alias_value":"QYKJBT6DH57X","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"QYKJBT6DH57XNCMR","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"QYKJBT6D","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:cc9a5c8dfd49abb6d322c2c1b466ebe047806b6a4fca098a9764bfd65ea6742c","target":"graph","created_at":"2026-05-18T02:03:33Z","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":"Context: Open clusters are key to studying the formation and evolution of the Galactic disc. However, there is a deficiency of radial velocity and chemical abundance determinations for open clusters in the literature. Aims: We intend to increase the number of determinations of radial velocities and metallicities from spectroscopy for open clusters. Methods: We acquired medium-resolution spectra (R~8000) in the infrared region Ca II triplet lines (~8500 AA) for several stars in five open clusters with the long-slit IDS spectrograph on the 2.5~m Isaac Newton Telescope (Roque de los Muchachos Obs","authors_text":"2), 2) ((1) Instituto de Astrof\\'isica de Canarias, (2) Departamento de Astrof\\'isica, (3) Departament d'Astronomia i Meteorologia, (4) Institut de Ci\\'encies de l'Espai (CSIC-IEEC), Barcelona, Bellaterra, Campus UAB, C. Jordi (3), ICC/IEEC, La Laguna, L. Balaguer-Nu\\~nez (3), L. Casamiquela (3), L. Monteagudo (1, N. Ospina (4), R. Carrera (1, Spain, Spain), Tenerife, Universidad de La Laguna, Universitat de Barcelona","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-06T09:08:39Z","title":"Radial velocities and metallicities from infrared Ca II triplet spectroscopy of open clusters II. Berkeley 23, King 1, NGC 559, NGC 6603 and NGC 7245"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01240","kind":"arxiv","version":2},"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":"sha256:4a67231b9e2090e0815ac648a0944ea28ff2bbe677633ee54c64474d18fa17f1","target":"record","created_at":"2026-05-18T02:03:33Z","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":"a0fe4b973dbe8afcee86dae875a4b2db458868560f7db17c6c974cd83bb7c5fb","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-06T09:08:39Z","title_canon_sha256":"e6be44fe1ac9bc2e39fef68b8879980457800493056e737a00829dd37ccfe9db"},"schema_version":"1.0","source":{"id":"1504.01240","kind":"arxiv","version":2}},"canonical_sha256":"861490cfc33f7f768991df8ec689738144f61c046e1e38a1a5c085fe10f8ba9c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"861490cfc33f7f768991df8ec689738144f61c046e1e38a1a5c085fe10f8ba9c","first_computed_at":"2026-05-18T02:03:33.185620Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:33.185620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WzuWHmvMP4W4Qgs6S+6/I4lRZy5o0rkAmq5Dz9jjuKfNyjNC9zckuglmXM1JIVY3LDVs3jCmZnCVISaXtYP5DA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:33.186255Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.01240","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a67231b9e2090e0815ac648a0944ea28ff2bbe677633ee54c64474d18fa17f1","sha256:cc9a5c8dfd49abb6d322c2c1b466ebe047806b6a4fca098a9764bfd65ea6742c"],"state_sha256":"1b9f0f28aafd3aae8d971e1f58d5bd36953df0f58c5d5a5e56a962fe1b0850a9"}