{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:WMYUCW2XS5UP565W66P5LENSBQ","short_pith_number":"pith:WMYUCW2X","canonical_record":{"source":{"id":"1102.4338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-21T21:00:23Z","cross_cats_sorted":[],"title_canon_sha256":"513e00512edded3fe4439775630e127c380cf4dcdee95963ab71f75b2fa9d715","abstract_canon_sha256":"40904e1b281580a5a399eec84b09f765ecf5e4bb64553db538bbb09596ca7e3e"},"schema_version":"1.0"},"canonical_sha256":"b331415b579768fefbb6f79fd591b20c1c6f96255f0c9f2ba38558eb364e7e51","source":{"kind":"arxiv","id":"1102.4338","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.4338","created_at":"2026-05-18T04:28:09Z"},{"alias_kind":"arxiv_version","alias_value":"1102.4338v1","created_at":"2026-05-18T04:28:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.4338","created_at":"2026-05-18T04:28:09Z"},{"alias_kind":"pith_short_12","alias_value":"WMYUCW2XS5UP","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WMYUCW2XS5UP565W","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WMYUCW2X","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:WMYUCW2XS5UP565W66P5LENSBQ","target":"record","payload":{"canonical_record":{"source":{"id":"1102.4338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-21T21:00:23Z","cross_cats_sorted":[],"title_canon_sha256":"513e00512edded3fe4439775630e127c380cf4dcdee95963ab71f75b2fa9d715","abstract_canon_sha256":"40904e1b281580a5a399eec84b09f765ecf5e4bb64553db538bbb09596ca7e3e"},"schema_version":"1.0"},"canonical_sha256":"b331415b579768fefbb6f79fd591b20c1c6f96255f0c9f2ba38558eb364e7e51","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:09.182592Z","signature_b64":"wSbj6ocXTO6FBk1ijyF+pQsn06dvHmquaeI+x3s0p9RwJHU3kclYv6CoRfOP1v2G/JgJ+zOPziuV5zZBfgfNAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b331415b579768fefbb6f79fd591b20c1c6f96255f0c9f2ba38558eb364e7e51","last_reissued_at":"2026-05-18T04:28:09.182090Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:09.182090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.4338","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":"2026-05-18T04:28:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mVQ0RfcljmjOmZIN4LZ3DPzbmZfZKSH30dPG3eNw3rnLK9WvY4YwUE7SFlLWuv9Gw5HYtE+wu6ofDHLLmf7JCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:32:17.092546Z"},"content_sha256":"89e3f43e44809b8566aa8581fe34c1df82ef7bddc82c891ba7464d27b2e89f21","schema_version":"1.0","event_id":"sha256:89e3f43e44809b8566aa8581fe34c1df82ef7bddc82c891ba7464d27b2e89f21"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:WMYUCW2XS5UP565W66P5LENSBQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Onset of Chaos in Pulsating Variable Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"David G. Turner, J. R. Percy, Leonid N. Berdnikov, Mohamed Abdel-Sabour Abdel-Latif","submitted_at":"2011-02-21T21:00:23Z","abstract_excerpt":"Random changes in pulsation period occur in cool pulsating Mira variables, Type A, B, and C semiregular variables, RV Tauri variables, and in most classical Cepheids. The physical processes responsible for such fluctuations are uncertain, but presumably originate in temporal modifications of the envelope convection in such stars. Such fluctuations are seemingly random over a few pulsation cycles of the stars, but are dominated by the regularity of the primary pulsation over the long term. The magnitude of stochasticity in pulsating stars appears to be linked directly to their dimensions, altho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.4338","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":"2026-05-18T04:28:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eNYQbvq5UYpzChGhI3RqlHRSPArSs/dpJ7w9ndVsK91tKsXL88Z8JbyRFuRLw5MKLltyOWj4POePHVpnZc7uAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:32:17.093211Z"},"content_sha256":"bb0e9f57ba5c2ca517f917bfa966ee2a24c2f88e2db187ec0a1463ae9c77b454","schema_version":"1.0","event_id":"sha256:bb0e9f57ba5c2ca517f917bfa966ee2a24c2f88e2db187ec0a1463ae9c77b454"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WMYUCW2XS5UP565W66P5LENSBQ/bundle.json","state_url":"https://pith.science/pith/WMYUCW2XS5UP565W66P5LENSBQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WMYUCW2XS5UP565W66P5LENSBQ/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":"2026-05-26T00:32:17Z","links":{"resolver":"https://pith.science/pith/WMYUCW2XS5UP565W66P5LENSBQ","bundle":"https://pith.science/pith/WMYUCW2XS5UP565W66P5LENSBQ/bundle.json","state":"https://pith.science/pith/WMYUCW2XS5UP565W66P5LENSBQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WMYUCW2XS5UP565W66P5LENSBQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:WMYUCW2XS5UP565W66P5LENSBQ","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":"40904e1b281580a5a399eec84b09f765ecf5e4bb64553db538bbb09596ca7e3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-21T21:00:23Z","title_canon_sha256":"513e00512edded3fe4439775630e127c380cf4dcdee95963ab71f75b2fa9d715"},"schema_version":"1.0","source":{"id":"1102.4338","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.4338","created_at":"2026-05-18T04:28:09Z"},{"alias_kind":"arxiv_version","alias_value":"1102.4338v1","created_at":"2026-05-18T04:28:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.4338","created_at":"2026-05-18T04:28:09Z"},{"alias_kind":"pith_short_12","alias_value":"WMYUCW2XS5UP","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WMYUCW2XS5UP565W","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WMYUCW2X","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:bb0e9f57ba5c2ca517f917bfa966ee2a24c2f88e2db187ec0a1463ae9c77b454","target":"graph","created_at":"2026-05-18T04:28:09Z","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":"Random changes in pulsation period occur in cool pulsating Mira variables, Type A, B, and C semiregular variables, RV Tauri variables, and in most classical Cepheids. The physical processes responsible for such fluctuations are uncertain, but presumably originate in temporal modifications of the envelope convection in such stars. Such fluctuations are seemingly random over a few pulsation cycles of the stars, but are dominated by the regularity of the primary pulsation over the long term. The magnitude of stochasticity in pulsating stars appears to be linked directly to their dimensions, altho","authors_text":"David G. Turner, J. R. Percy, Leonid N. Berdnikov, Mohamed Abdel-Sabour Abdel-Latif","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-21T21:00:23Z","title":"The Onset of Chaos in Pulsating Variable Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.4338","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":"sha256:89e3f43e44809b8566aa8581fe34c1df82ef7bddc82c891ba7464d27b2e89f21","target":"record","created_at":"2026-05-18T04:28:09Z","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":"40904e1b281580a5a399eec84b09f765ecf5e4bb64553db538bbb09596ca7e3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-21T21:00:23Z","title_canon_sha256":"513e00512edded3fe4439775630e127c380cf4dcdee95963ab71f75b2fa9d715"},"schema_version":"1.0","source":{"id":"1102.4338","kind":"arxiv","version":1}},"canonical_sha256":"b331415b579768fefbb6f79fd591b20c1c6f96255f0c9f2ba38558eb364e7e51","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b331415b579768fefbb6f79fd591b20c1c6f96255f0c9f2ba38558eb364e7e51","first_computed_at":"2026-05-18T04:28:09.182090Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:28:09.182090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wSbj6ocXTO6FBk1ijyF+pQsn06dvHmquaeI+x3s0p9RwJHU3kclYv6CoRfOP1v2G/JgJ+zOPziuV5zZBfgfNAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:28:09.182592Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.4338","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:89e3f43e44809b8566aa8581fe34c1df82ef7bddc82c891ba7464d27b2e89f21","sha256:bb0e9f57ba5c2ca517f917bfa966ee2a24c2f88e2db187ec0a1463ae9c77b454"],"state_sha256":"18d3e31aae4bd1bc0090fa8cde39690d8a6ef7455f91cd533ae294d92810a8c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h99iMtjl3EMPy8C3oE7vt9wNpCVVYBzOFfL6nq0ilygwm2N7+ZMoW2zSUFvnJNg5MtSKi9r/n4uZ5d967TPqBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T00:32:17.096604Z","bundle_sha256":"81f5636eb410b53e9f4a14431b536ca92c611ee6d04d0b5ceda27c7f4eac626a"}}