{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:J2TOQBP5IFSVZVZLH5G4RMOGUO","short_pith_number":"pith:J2TOQBP5","canonical_record":{"source":{"id":"astro-ph/0004099","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-04-07T04:01:43Z","cross_cats_sorted":[],"title_canon_sha256":"77f15b5cd12411129286366c24b430eedaba05485e630b51e0ccc8356b55071e","abstract_canon_sha256":"53b4f387332e7c2028656ff78a103dd8c15935285b584ef3740fbd919f45dc7b"},"schema_version":"1.0"},"canonical_sha256":"4ea6e805fd41655cd72b3f4dc8b1c6a3b5036d1178e097e5b9cbf9412029c541","source":{"kind":"arxiv","id":"astro-ph/0004099","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0004099","created_at":"2026-05-18T01:40:48Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0004099v1","created_at":"2026-05-18T01:40:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0004099","created_at":"2026-05-18T01:40:48Z"},{"alias_kind":"pith_short_12","alias_value":"J2TOQBP5IFSV","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"J2TOQBP5IFSVZVZL","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"J2TOQBP5","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:J2TOQBP5IFSVZVZLH5G4RMOGUO","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0004099","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-04-07T04:01:43Z","cross_cats_sorted":[],"title_canon_sha256":"77f15b5cd12411129286366c24b430eedaba05485e630b51e0ccc8356b55071e","abstract_canon_sha256":"53b4f387332e7c2028656ff78a103dd8c15935285b584ef3740fbd919f45dc7b"},"schema_version":"1.0"},"canonical_sha256":"4ea6e805fd41655cd72b3f4dc8b1c6a3b5036d1178e097e5b9cbf9412029c541","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:48.080858Z","signature_b64":"KT+ubxNQD27tiEe7S90TKlrjCJy8vxdJzJYPJ0gttjGsHqS9/fdV2hsf2WS+rPobgkC8QsTO9RWB0yN3GwyMDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4ea6e805fd41655cd72b3f4dc8b1c6a3b5036d1178e097e5b9cbf9412029c541","last_reissued_at":"2026-05-18T01:40:48.080204Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:48.080204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0004099","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:40:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pEhPfNbFqDotkTEZOv0wwcQOXVRVK/8QOeR9Im93hG1DmuEkVMzp0abGH0KWRHTJ95tQYowId0IhhbIhfEwJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:10:10.284769Z"},"content_sha256":"cd7b57010c629364bf7919cb4fc9cfa64db9869dea2d17d5bb456d649c59cdbf","schema_version":"1.0","event_id":"sha256:cd7b57010c629364bf7919cb4fc9cfa64db9869dea2d17d5bb456d649c59cdbf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:J2TOQBP5IFSVZVZLH5G4RMOGUO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring the Leo II dSph I.: The Variable Star Content","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"M. H. Siegel, S. R. Majewski","submitted_at":"2000-04-07T04:01:43Z","abstract_excerpt":"We present the first comprehensive catalogue of variable stars in the Leo II dwarf spheroidal galaxy. We have identified 148 RR Lyrae type variables, of which 140 were amenable to derivation of variability parameters with our data. We have also confirmed the existence of four anomalous Cepheids as identified in previous studies.\n  The average period of the RR Lyrae ab variables (0.62 days), the fraction of c variables (0.24) and the minimum period of the RR Lyrae ab variables (0.51 days) all define Leo II as an \"Oosterhoff intermediate\" galaxy. We have used the properties of these variables to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0004099","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:40:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lxPlJ1zlT7jas1vSYCltLjS3e4y9XRcq2ss37IsVmJDa6vFtDZKPpq37QWVL+6Rm2Pl39cYzEeX3kqiSwwjdCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:10:10.285117Z"},"content_sha256":"b9bdea3d0c20eed8c2b25ea1d874b321f69f6ce29d78bf335fe82d4ed4b764d6","schema_version":"1.0","event_id":"sha256:b9bdea3d0c20eed8c2b25ea1d874b321f69f6ce29d78bf335fe82d4ed4b764d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J2TOQBP5IFSVZVZLH5G4RMOGUO/bundle.json","state_url":"https://pith.science/pith/J2TOQBP5IFSVZVZLH5G4RMOGUO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J2TOQBP5IFSVZVZLH5G4RMOGUO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-02T23:10:10Z","links":{"resolver":"https://pith.science/pith/J2TOQBP5IFSVZVZLH5G4RMOGUO","bundle":"https://pith.science/pith/J2TOQBP5IFSVZVZLH5G4RMOGUO/bundle.json","state":"https://pith.science/pith/J2TOQBP5IFSVZVZLH5G4RMOGUO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J2TOQBP5IFSVZVZLH5G4RMOGUO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:J2TOQBP5IFSVZVZLH5G4RMOGUO","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":"53b4f387332e7c2028656ff78a103dd8c15935285b584ef3740fbd919f45dc7b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-04-07T04:01:43Z","title_canon_sha256":"77f15b5cd12411129286366c24b430eedaba05485e630b51e0ccc8356b55071e"},"schema_version":"1.0","source":{"id":"astro-ph/0004099","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0004099","created_at":"2026-05-18T01:40:48Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0004099v1","created_at":"2026-05-18T01:40:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0004099","created_at":"2026-05-18T01:40:48Z"},{"alias_kind":"pith_short_12","alias_value":"J2TOQBP5IFSV","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"J2TOQBP5IFSVZVZL","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"J2TOQBP5","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:b9bdea3d0c20eed8c2b25ea1d874b321f69f6ce29d78bf335fe82d4ed4b764d6","target":"graph","created_at":"2026-05-18T01:40:48Z","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 present the first comprehensive catalogue of variable stars in the Leo II dwarf spheroidal galaxy. We have identified 148 RR Lyrae type variables, of which 140 were amenable to derivation of variability parameters with our data. We have also confirmed the existence of four anomalous Cepheids as identified in previous studies.\n  The average period of the RR Lyrae ab variables (0.62 days), the fraction of c variables (0.24) and the minimum period of the RR Lyrae ab variables (0.51 days) all define Leo II as an \"Oosterhoff intermediate\" galaxy. We have used the properties of these variables to","authors_text":"M. H. Siegel, S. R. Majewski","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-04-07T04:01:43Z","title":"Exploring the Leo II dSph I.: The Variable Star Content"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0004099","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:cd7b57010c629364bf7919cb4fc9cfa64db9869dea2d17d5bb456d649c59cdbf","target":"record","created_at":"2026-05-18T01:40:48Z","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":"53b4f387332e7c2028656ff78a103dd8c15935285b584ef3740fbd919f45dc7b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-04-07T04:01:43Z","title_canon_sha256":"77f15b5cd12411129286366c24b430eedaba05485e630b51e0ccc8356b55071e"},"schema_version":"1.0","source":{"id":"astro-ph/0004099","kind":"arxiv","version":1}},"canonical_sha256":"4ea6e805fd41655cd72b3f4dc8b1c6a3b5036d1178e097e5b9cbf9412029c541","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ea6e805fd41655cd72b3f4dc8b1c6a3b5036d1178e097e5b9cbf9412029c541","first_computed_at":"2026-05-18T01:40:48.080204Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:48.080204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KT+ubxNQD27tiEe7S90TKlrjCJy8vxdJzJYPJ0gttjGsHqS9/fdV2hsf2WS+rPobgkC8QsTO9RWB0yN3GwyMDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:48.080858Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0004099","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cd7b57010c629364bf7919cb4fc9cfa64db9869dea2d17d5bb456d649c59cdbf","sha256:b9bdea3d0c20eed8c2b25ea1d874b321f69f6ce29d78bf335fe82d4ed4b764d6"],"state_sha256":"12f3b323f3bf10dbfd03639a9a8054b5335a1abf79600f0edde89230780acb27"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YKW1KBexjgNDRMgdPIHKORYWJR8pY4pWoA3zIk0vPu9UTyp/28MQFyrpsTEUkoVpV52FFwlKSA20GdD+ygpwCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T23:10:10.287282Z","bundle_sha256":"4eca031ef83543da44e29bf7173e03f53f6d5c7bbe2300197441ec941ef74a97"}}