{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:ZWV37TL5UPHA5CZOM64LFOSGWQ","short_pith_number":"pith:ZWV37TL5","canonical_record":{"source":{"id":"1309.2108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-09T10:44:58Z","cross_cats_sorted":[],"title_canon_sha256":"8c959aa7382548c055287384f9dce4967a2c632dbb1b59020822d91ea5c8406b","abstract_canon_sha256":"350955f3040912ba87e071de775f2e9ab998f0afc8c2eb321991cce88ae8a8f1"},"schema_version":"1.0"},"canonical_sha256":"cdabbfcd7da3ce0e8b2e67b8b2ba46b437e2a501abd6cabc1f2414087261d93a","source":{"kind":"arxiv","id":"1309.2108","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.2108","created_at":"2026-05-18T01:47:44Z"},{"alias_kind":"arxiv_version","alias_value":"1309.2108v1","created_at":"2026-05-18T01:47:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.2108","created_at":"2026-05-18T01:47:44Z"},{"alias_kind":"pith_short_12","alias_value":"ZWV37TL5UPHA","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZWV37TL5UPHA5CZO","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZWV37TL5","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:ZWV37TL5UPHA5CZOM64LFOSGWQ","target":"record","payload":{"canonical_record":{"source":{"id":"1309.2108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-09T10:44:58Z","cross_cats_sorted":[],"title_canon_sha256":"8c959aa7382548c055287384f9dce4967a2c632dbb1b59020822d91ea5c8406b","abstract_canon_sha256":"350955f3040912ba87e071de775f2e9ab998f0afc8c2eb321991cce88ae8a8f1"},"schema_version":"1.0"},"canonical_sha256":"cdabbfcd7da3ce0e8b2e67b8b2ba46b437e2a501abd6cabc1f2414087261d93a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:44.373714Z","signature_b64":"b066begJW7yN2htE7HRuI3cNnJ8iTW8oE0RUrkdNIXTFpP28gcxckrc9BGwLUeRXWxfilxn4zYFNusNZ59taBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cdabbfcd7da3ce0e8b2e67b8b2ba46b437e2a501abd6cabc1f2414087261d93a","last_reissued_at":"2026-05-18T01:47:44.373247Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:44.373247Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.2108","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":"2026-05-18T01:47:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4dzmSdRsoLMvgrqoG2H09uLAqDoqhedaEIX1WTM6fD9sr1TclLGabx/QftIcHNlb2KpiFjt/Dd4J0cXplA0vAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:43:36.346393Z"},"content_sha256":"7f87f6449af62b5fda5466dad79b8cf9a717adb23eaf667446319d6c1dbb0522","schema_version":"1.0","event_id":"sha256:7f87f6449af62b5fda5466dad79b8cf9a717adb23eaf667446319d6c1dbb0522"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:ZWV37TL5UPHA5CZOM64LFOSGWQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analysis of the possible Blazhko-effect Cepheid V473 Lyrae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"\\'A. Gy\\H{o}rffy, Jr., L. Moln\\'ar, L. Szabados, R. J. Dukes, R. Szab\\'o","submitted_at":"2013-09-09T10:44:58Z","abstract_excerpt":"V473 Lyrae is a peculiar Galactic Cepheid, showing strong amplitude modulation that resembles the Blazhko-effect observed in RR Lyrae stars. We collected data spanning several modulation cycles and started a detailed analysis. The first results indicate that the star shows both amplitude and phase modulations with an average period of 1204 days, but both the cycle length and the strength of the modulation are subjected to considerable variations. A possible quintuplet component in the Fourier spectrum and additional period changes were also detected."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.2108","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":"2026-05-18T01:47:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7ym3Epm7LmTzOa4jLPcDrzIX+nkPLrH3DeoreLNkPtqkGIg72c37WW3oeSRHZtOMdh5D32HY9IiKMJ0A9mciCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:43:36.346742Z"},"content_sha256":"c321393fc88e1294caaeedf9a82425c7280271cd6d61afa94eac01ca15be0ede","schema_version":"1.0","event_id":"sha256:c321393fc88e1294caaeedf9a82425c7280271cd6d61afa94eac01ca15be0ede"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZWV37TL5UPHA5CZOM64LFOSGWQ/bundle.json","state_url":"https://pith.science/pith/ZWV37TL5UPHA5CZOM64LFOSGWQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZWV37TL5UPHA5CZOM64LFOSGWQ/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":"2026-05-28T09:43:36Z","links":{"resolver":"https://pith.science/pith/ZWV37TL5UPHA5CZOM64LFOSGWQ","bundle":"https://pith.science/pith/ZWV37TL5UPHA5CZOM64LFOSGWQ/bundle.json","state":"https://pith.science/pith/ZWV37TL5UPHA5CZOM64LFOSGWQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZWV37TL5UPHA5CZOM64LFOSGWQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ZWV37TL5UPHA5CZOM64LFOSGWQ","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":"350955f3040912ba87e071de775f2e9ab998f0afc8c2eb321991cce88ae8a8f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-09T10:44:58Z","title_canon_sha256":"8c959aa7382548c055287384f9dce4967a2c632dbb1b59020822d91ea5c8406b"},"schema_version":"1.0","source":{"id":"1309.2108","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.2108","created_at":"2026-05-18T01:47:44Z"},{"alias_kind":"arxiv_version","alias_value":"1309.2108v1","created_at":"2026-05-18T01:47:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.2108","created_at":"2026-05-18T01:47:44Z"},{"alias_kind":"pith_short_12","alias_value":"ZWV37TL5UPHA","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZWV37TL5UPHA5CZO","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZWV37TL5","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:c321393fc88e1294caaeedf9a82425c7280271cd6d61afa94eac01ca15be0ede","target":"graph","created_at":"2026-05-18T01:47:44Z","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":"V473 Lyrae is a peculiar Galactic Cepheid, showing strong amplitude modulation that resembles the Blazhko-effect observed in RR Lyrae stars. We collected data spanning several modulation cycles and started a detailed analysis. The first results indicate that the star shows both amplitude and phase modulations with an average period of 1204 days, but both the cycle length and the strength of the modulation are subjected to considerable variations. A possible quintuplet component in the Fourier spectrum and additional period changes were also detected.","authors_text":"\\'A. Gy\\H{o}rffy, Jr., L. Moln\\'ar, L. Szabados, R. J. Dukes, R. Szab\\'o","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-09T10:44:58Z","title":"Analysis of the possible Blazhko-effect Cepheid V473 Lyrae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.2108","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":"sha256:7f87f6449af62b5fda5466dad79b8cf9a717adb23eaf667446319d6c1dbb0522","target":"record","created_at":"2026-05-18T01:47:44Z","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":"350955f3040912ba87e071de775f2e9ab998f0afc8c2eb321991cce88ae8a8f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-09T10:44:58Z","title_canon_sha256":"8c959aa7382548c055287384f9dce4967a2c632dbb1b59020822d91ea5c8406b"},"schema_version":"1.0","source":{"id":"1309.2108","kind":"arxiv","version":1}},"canonical_sha256":"cdabbfcd7da3ce0e8b2e67b8b2ba46b437e2a501abd6cabc1f2414087261d93a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cdabbfcd7da3ce0e8b2e67b8b2ba46b437e2a501abd6cabc1f2414087261d93a","first_computed_at":"2026-05-18T01:47:44.373247Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:44.373247Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b066begJW7yN2htE7HRuI3cNnJ8iTW8oE0RUrkdNIXTFpP28gcxckrc9BGwLUeRXWxfilxn4zYFNusNZ59taBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:44.373714Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.2108","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f87f6449af62b5fda5466dad79b8cf9a717adb23eaf667446319d6c1dbb0522","sha256:c321393fc88e1294caaeedf9a82425c7280271cd6d61afa94eac01ca15be0ede"],"state_sha256":"6069aef828fcaa733430ed07a078c1f6c4a6755b5c35017b381274c955ae5abc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z7qPiWC90NJUsUHPM4NkLWmqF6/h/WLKcZ8Ulfhgrzqgq04Z5eR3wZnae0O2Rhko8jR0dvIMZ//LkOA3VYyqBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T09:43:36.348628Z","bundle_sha256":"4348b53ef1853a14a106830e25e0df3f16ab725f33e1088d96f561977d9943da"}}