{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:MK2IYII5YAJUSERBWZ2YHOGLOQ","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":"ba1b106cc28d911b92b31e66511f432d68b5d9246b1cfe604d8ba0af6e54d28b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-06-01T19:04:20Z","title_canon_sha256":"fe4fbd7f3e4520cef2199baf76c4932d0949140c9d55a296fa3cfa52fc8325b3"},"schema_version":"1.0","source":{"id":"astro-ph/9806017","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9806017","created_at":"2026-05-18T03:47:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9806017v1","created_at":"2026-05-18T03:47:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9806017","created_at":"2026-05-18T03:47:42Z"},{"alias_kind":"pith_short_12","alias_value":"MK2IYII5YAJU","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"MK2IYII5YAJUSERB","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"MK2IYII5","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:17b9a823cfec07cb524d833ad0490947ad78d49eccee50a2e751c48d277a41c0","target":"graph","created_at":"2026-05-18T03:47:42Z","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 report the detection of Cepheid variable stars in the barred spiral galaxy NGC 1365, located in the Fornax cluster, using the Hubble Space Telescope Wide Field and Planetary Camera 2. Twelve V (F555W) and four I (F814W) epochs of observation were obtained. The two photometry packages, ALLFRAME and DoPHOT, were separately used to obtain profile-fitting photometry of all the stars in the HST field. The search for Cepheid variable stars resulted in a sample of 52 variables, with periods between 14 and 60 days, in common with both datasets. ALLFRAME photometry and light curves of the Cepheids a","authors_text":"A. Turner, B. F. Madore, B. K. Gibson, D. Kelson, D. Rawson, F. Bresolin, G. D. Illingworth, H. Ford, J. A. Graham, J. G. Hoessel, J. Huchra, Jr., J. R. Mould, L. Ferrarese, L. Macri, M. Han, N. A. Silbermann, P. B. Stetson, P. Harding, R. C. Kennicutt, R. J. Hill, R. Phelps, S. M. G. Hughes, S. Sakai, W. L. Freedman","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-06-01T19:04:20Z","title":"The HST Key Project on the Extragalactic Distance Scale XIV. The Cepheids in NGC 1365"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9806017","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:fb97c0f854099527c416c6a73879a49f53772da2474518e22e93b10d605fe021","target":"record","created_at":"2026-05-18T03:47:42Z","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":"ba1b106cc28d911b92b31e66511f432d68b5d9246b1cfe604d8ba0af6e54d28b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-06-01T19:04:20Z","title_canon_sha256":"fe4fbd7f3e4520cef2199baf76c4932d0949140c9d55a296fa3cfa52fc8325b3"},"schema_version":"1.0","source":{"id":"astro-ph/9806017","kind":"arxiv","version":1}},"canonical_sha256":"62b48c211dc013491221b67583b8cb74140d9e2ad4f5c1f239824ea0dbd55e67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62b48c211dc013491221b67583b8cb74140d9e2ad4f5c1f239824ea0dbd55e67","first_computed_at":"2026-05-18T03:47:42.587212Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:47:42.587212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vLy5RU5UI0tttQKm5t6Tr8uH/+Xj1nqAKinvO7Txs1fSI4zKchLCpcMO2+DEsHZc009LjyosCJR3fTGGfC5oCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:47:42.587814Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9806017","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fb97c0f854099527c416c6a73879a49f53772da2474518e22e93b10d605fe021","sha256:17b9a823cfec07cb524d833ad0490947ad78d49eccee50a2e751c48d277a41c0"],"state_sha256":"ca2ec1546287c473551afa48948dde6a01114fee7d2bc39cf56d9b74f622eb2c"}