{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:W5WWPU6BOXPCYRQGVNRDEHMNVT","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":"b0cec31b6e3aa76dae77ff7f496db3479ee902b0a1ff61acf054b139289171f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-10T18:29:00Z","title_canon_sha256":"8d2241b740b1ec3bf963d3b67a818f21c5a4a97a41197f10f03a67f54e050402"},"schema_version":"1.0","source":{"id":"1701.02719","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02719","created_at":"2026-05-18T00:53:03Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02719v1","created_at":"2026-05-18T00:53:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02719","created_at":"2026-05-18T00:53:03Z"},{"alias_kind":"pith_short_12","alias_value":"W5WWPU6BOXPC","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"W5WWPU6BOXPCYRQG","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"W5WWPU6B","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:ebec679a8818e904796e42e7642b34dcd510d21a8bba688b42ab63eb5a4f6412","target":"graph","created_at":"2026-05-18T00:53:03Z","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":"We describe and summarize the findings from our CCD time-series photometry of globular clusters (GCs) program and the use of difference image analysis (DIA) in the extraction of very precise light curves even in the crowded central regions down to $V\\sim 19$ mag. We have discovered approximately 250 variable stars in a sample of 23 selected GCs and have, therefore, updated the census of variables in each system and in some cases we have actually completed it down to a certain magnitude. The absolute magnitude and [Fe/H] for each individual RR Lyrae is obtained via the Fourier decomposition of ","authors_text":"A. Arellano Ferro, D. M. Bramich, S. Giridhar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-10T18:29:00Z","title":"CCD time-series photometry of variable stars in globular clusters and the metallicity dependence of the horizontal branch luminosity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02719","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":"sha256:77846a8a293716f92b7bb85808ba732470ca135998d3ef663855a6fdd7fbb78a","target":"record","created_at":"2026-05-18T00:53:03Z","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":"b0cec31b6e3aa76dae77ff7f496db3479ee902b0a1ff61acf054b139289171f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-10T18:29:00Z","title_canon_sha256":"8d2241b740b1ec3bf963d3b67a818f21c5a4a97a41197f10f03a67f54e050402"},"schema_version":"1.0","source":{"id":"1701.02719","kind":"arxiv","version":1}},"canonical_sha256":"b76d67d3c175de2c4606ab62321d8daccaaa39ba423af02affc0567ca957e510","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b76d67d3c175de2c4606ab62321d8daccaaa39ba423af02affc0567ca957e510","first_computed_at":"2026-05-18T00:53:03.584682Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:03.584682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wKvhP6GCZG+leyyw9vLnmjQSW53DDDrGjB2/J3hk5HoxAqskZyr/6q48PRnrJQzjqJFA932ICti1wtDNr4/pAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:03.585210Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.02719","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77846a8a293716f92b7bb85808ba732470ca135998d3ef663855a6fdd7fbb78a","sha256:ebec679a8818e904796e42e7642b34dcd510d21a8bba688b42ab63eb5a4f6412"],"state_sha256":"e43436a7c28dc51b6bfbcae730dce945eb161347a1a31504eb779f0e74ae30d2"}