{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:IIS6WNHMXVLYCEE7LNFBIEJOMY","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":"4f8afd973472c606a956c30b7b855744059e1fef8335f98130523a1e2230d2ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-12T09:31:58Z","title_canon_sha256":"4ff19a4deff33950ccd66af881e86eafb1035be314da1d0888d73c0540e92e1e"},"schema_version":"1.0","source":{"id":"1203.2435","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.2435","created_at":"2026-05-18T04:00:25Z"},{"alias_kind":"arxiv_version","alias_value":"1203.2435v1","created_at":"2026-05-18T04:00:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.2435","created_at":"2026-05-18T04:00:25Z"},{"alias_kind":"pith_short_12","alias_value":"IIS6WNHMXVLY","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"IIS6WNHMXVLYCEE7","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"IIS6WNHM","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:a11957091d562fc556bfb740523a871a7a59042837bb05a78f225f719a0c41f0","target":"graph","created_at":"2026-05-18T04:00:25Z","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":"The Quintuplet, one of three massive stellar clusters in the Galactic center, is located about 30pc in projection from Sagittarius A*. Based on near-infrared K-band spectra we determine temperatures and luminosities for all stars in our sample and construct the Herztsprung-Russell diagram. We find two distinct groups: early-type OB stars and late-type KM stars, well separated from each other. By comparison with Geneva stellar evolution models we derive initial masses exceeding 8 solar masses for the OB stars, that are located along an isochrone corresponding to a cluster age of about 4 million","authors_text":"A. Liermann, L. M. Oskinova, W.-R. Hamann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-12T09:31:58Z","title":"The Quintuplet Cluster III. Hertzsprung-Russell diagram and cluster age"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.2435","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":"sha256:0defbb624eb7fc489fc7b1b4f68b120228f1afa749488908c3d53f01c4d64acc","target":"record","created_at":"2026-05-18T04:00:25Z","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":"4f8afd973472c606a956c30b7b855744059e1fef8335f98130523a1e2230d2ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-12T09:31:58Z","title_canon_sha256":"4ff19a4deff33950ccd66af881e86eafb1035be314da1d0888d73c0540e92e1e"},"schema_version":"1.0","source":{"id":"1203.2435","kind":"arxiv","version":1}},"canonical_sha256":"4225eb34ecbd5781109f5b4a14112e661f6b1c53911b132be90476b58aa252e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4225eb34ecbd5781109f5b4a14112e661f6b1c53911b132be90476b58aa252e4","first_computed_at":"2026-05-18T04:00:25.470126Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:25.470126Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JuxGvFZ/lgAZkM89vwT/0YboJYgDmxsdN8E44Uims/VmN3BbOo8ZXMHi9DCQlrC2GQwpI3cCyAp4VpA3BaWgDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:25.470776Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.2435","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0defbb624eb7fc489fc7b1b4f68b120228f1afa749488908c3d53f01c4d64acc","sha256:a11957091d562fc556bfb740523a871a7a59042837bb05a78f225f719a0c41f0"],"state_sha256":"35095dcc0b43413c0f5910b8b22fa2c478fc39499de42efee905d3fa49ff9ef3"}