{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:AH46Z7IH3HAOL2OIJNGIIL6EDT","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":"6c0c61eaa428a7c3913f52fcbaf7af5593f7d6f2815458834f5f3e0d0d6ffb37","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-11T02:34:18Z","title_canon_sha256":"f6953df215983402c53ec28c0cbbf310d3dccb846835afa5abfe456636bcec2f"},"schema_version":"1.0","source":{"id":"1706.03299","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03299","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03299v2","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03299","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"pith_short_12","alias_value":"AH46Z7IH3HAO","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AH46Z7IH3HAOL2OI","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AH46Z7IH","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:b14e186cd61f010d68217b0d9dab94e70037611c52dc172cfc6e8a90f3c1ad14","target":"graph","created_at":"2026-05-18T00:36:31Z","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":"Because of strong and spatially highly variable interstellar extinction and extreme source crowding, the faint (K>15) stellar population in the Milky Way's nuclear cluster is still poorly studied. RR Lyrae stars provide us with a tool to estimate the mass of the oldest, relative dim stellar population. Recently, we analyzed HST/WFC3/IR observations of the central 2.3'x2.3' of the Milky Way and found 21 variable stars with periods between 0.2 and 1d. Here, we present a further comprehensive analysis of these stars. The period-luminosity relationship of RR Lyrae is used to derive their extinctio","authors_text":"Andrea Ghez, Benjamin F. Williams, Eulalia Gallego-Cano, Francisco Nogueras-Lara, Hui Dong, Mark R. Morris, Q. Daniel Wang, Rainer Schodel, R. Michael Rich, Teresa Gallego-Calvente, Tuan Do","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-11T02:34:18Z","title":"Near-Infrared Variability Study of the Central 2.3 arcmin x 2.3 arcmin of the Galactic Centre II. Identification of RR Lyrae Stars in the Milky Way Nuclear Star Cluster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03299","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":"sha256:64d6b31d138d428bb8dd15c0ee8f4b36ec1446b90a9fa17eb3e5d0c53c9461fa","target":"record","created_at":"2026-05-18T00:36:31Z","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":"6c0c61eaa428a7c3913f52fcbaf7af5593f7d6f2815458834f5f3e0d0d6ffb37","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-11T02:34:18Z","title_canon_sha256":"f6953df215983402c53ec28c0cbbf310d3dccb846835afa5abfe456636bcec2f"},"schema_version":"1.0","source":{"id":"1706.03299","kind":"arxiv","version":2}},"canonical_sha256":"01f9ecfd07d9c0e5e9c84b4c842fc41ccc3c2a490e7839cd1548fc0d2ba4c0c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01f9ecfd07d9c0e5e9c84b4c842fc41ccc3c2a490e7839cd1548fc0d2ba4c0c2","first_computed_at":"2026-05-18T00:36:31.278327Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:31.278327Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NsG050ej2gM70fW1tjjV9AmODaU0gSTSLFuB1ZLNDFBOVa0LkyWOD5sKsOqC/aeo4nU0mv6PCXAFUr4bx4AHCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:31.278974Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.03299","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:64d6b31d138d428bb8dd15c0ee8f4b36ec1446b90a9fa17eb3e5d0c53c9461fa","sha256:b14e186cd61f010d68217b0d9dab94e70037611c52dc172cfc6e8a90f3c1ad14"],"state_sha256":"140b8fde93a99af996e2d49f30c0f01dc0046ec5d4e6ac410d61e8325796fa0c"}