{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:TCZL5MNLYWB5P3D3GLGL36VGVV","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":"92bd8d87c567fc6b62a890563ebce588b3bea4e2b990da339f4219da93fcfb1d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-30T04:58:36Z","title_canon_sha256":"6926ed76f9c994939b83c436cd6a1a1da1110d5352973fcc1a50a5bf7f56d5e8"},"schema_version":"1.0","source":{"id":"0912.5415","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.5415","created_at":"2026-05-18T02:10:13Z"},{"alias_kind":"arxiv_version","alias_value":"0912.5415v1","created_at":"2026-05-18T02:10:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.5415","created_at":"2026-05-18T02:10:13Z"},{"alias_kind":"pith_short_12","alias_value":"TCZL5MNLYWB5","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"TCZL5MNLYWB5P3D3","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"TCZL5MNL","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:ac9ccb940b6351d70fd6db23b88c33b9875f60e5d7a7a1daec9929b6adde5d4a","target":"graph","created_at":"2026-05-18T02:10:13Z","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 discovery of large number of Cepheid variables in far-off galaxies offers a unique opportunity to determine the accurate distance of the host galaxy through their period-luminosity relation. The main aim of the present study is to identify short-period and relatively faint Cepheids in the crowded field of M31 disk which was observed as part of the Nainital Microlensing Survey. The Cousins R and I-band photometric observations were obtained with a 1-m telescope on more than 150 nights over the period between November 1998 to January 2002. The data was analysed using the pixel technique and ","authors_text":"A. K. Pandey (ARIES, D. Narasimha (TIFR, India), R. Sagar (ARIES, Y. C. Joshi (ARIES","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-30T04:58:36Z","title":"Nainital Microlensing Survey -- detection of short period Cepheids in the disk of M31"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.5415","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":"sha256:6f7dd32cc22a106105062137105f25317ca4b0b468f8cf6413fd152b7f679453","target":"record","created_at":"2026-05-18T02:10:13Z","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":"92bd8d87c567fc6b62a890563ebce588b3bea4e2b990da339f4219da93fcfb1d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-30T04:58:36Z","title_canon_sha256":"6926ed76f9c994939b83c436cd6a1a1da1110d5352973fcc1a50a5bf7f56d5e8"},"schema_version":"1.0","source":{"id":"0912.5415","kind":"arxiv","version":1}},"canonical_sha256":"98b2beb1abc583d7ec7b32ccbdfaa6ad598a6c0ccd684d160da8336b04a4f022","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98b2beb1abc583d7ec7b32ccbdfaa6ad598a6c0ccd684d160da8336b04a4f022","first_computed_at":"2026-05-18T02:10:13.203077Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:13.203077Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LKvU1ey1aECHE0fyIEgD6zcuF3htIjMa3C9JALSU7WT6K9n5EvumG2ZIo/Yl2jv4idp6AJqYL3s28EsCjUsNBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:13.203756Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.5415","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f7dd32cc22a106105062137105f25317ca4b0b468f8cf6413fd152b7f679453","sha256:ac9ccb940b6351d70fd6db23b88c33b9875f60e5d7a7a1daec9929b6adde5d4a"],"state_sha256":"0bd0a44e8d78f626132a0214383390674dc482eb262c6367ce3f77f2374b489e"}