{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:RV3BYZXLTXAAB3X2DNPO5DVOYL","short_pith_number":"pith:RV3BYZXL","schema_version":"1.0","canonical_sha256":"8d761c66eb9dc000eefa1b5eee8eaec2e48da7ec7da872001786ff504b5743ac","source":{"kind":"arxiv","id":"1209.5645","version":1},"attestation_state":"computed","paper":{"title":"Evidence for chaotic behaviour in pulsar spin-down rates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.CD"],"primary_cat":"astro-ph.SR","authors_text":"A. D. Seymour, D. R. Lorimer","submitted_at":"2012-09-25T15:30:28Z","abstract_excerpt":"We present evidence for chaotic dynamics within the spin-down rates of 17 pulsars originally presented by Lyne et al. Using techniques that allow us to re-sample the original measurements without losing structural information, we have searched for evidence of a strange attractor in the time series of frequency derivatives for each of the 17 pulsars. We demonstrate the effectiveness of our methods by applying them to a component of the Lorenz and R\\\"ossler attractors that were sampled with similar cadence to the pulsar time series. Our measurements of correlation dimension and Lyapunov exponent"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1209.5645","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-25T15:30:28Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"a88451ccd8b48545eacef729645001be3394fce2db61c09b799b33b35c882011","abstract_canon_sha256":"77b9311de49270096c46bc77b715a7d68357d4c198b1e322d05d7dd5a6b01857"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:41.845468Z","signature_b64":"BMsoWOsgOF1bIOIjhxcld57GVxOwG91TlhHrQojOjpynyUkimCoqng54h/tS4GMP05l+sgasxLzkEex9xTTMDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8d761c66eb9dc000eefa1b5eee8eaec2e48da7ec7da872001786ff504b5743ac","last_reissued_at":"2026-05-18T03:41:41.844394Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:41.844394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Evidence for chaotic behaviour in pulsar spin-down rates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.CD"],"primary_cat":"astro-ph.SR","authors_text":"A. D. Seymour, D. R. Lorimer","submitted_at":"2012-09-25T15:30:28Z","abstract_excerpt":"We present evidence for chaotic dynamics within the spin-down rates of 17 pulsars originally presented by Lyne et al. Using techniques that allow us to re-sample the original measurements without losing structural information, we have searched for evidence of a strange attractor in the time series of frequency derivatives for each of the 17 pulsars. We demonstrate the effectiveness of our methods by applying them to a component of the Lorenz and R\\\"ossler attractors that were sampled with similar cadence to the pulsar time series. Our measurements of correlation dimension and Lyapunov exponent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.5645","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1209.5645","created_at":"2026-05-18T03:41:41.844573+00:00"},{"alias_kind":"arxiv_version","alias_value":"1209.5645v1","created_at":"2026-05-18T03:41:41.844573+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.5645","created_at":"2026-05-18T03:41:41.844573+00:00"},{"alias_kind":"pith_short_12","alias_value":"RV3BYZXLTXAA","created_at":"2026-05-18T12:27:20.899486+00:00"},{"alias_kind":"pith_short_16","alias_value":"RV3BYZXLTXAAB3X2","created_at":"2026-05-18T12:27:20.899486+00:00"},{"alias_kind":"pith_short_8","alias_value":"RV3BYZXL","created_at":"2026-05-18T12:27:20.899486+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL","json":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL.json","graph_json":"https://pith.science/api/pith-number/RV3BYZXLTXAAB3X2DNPO5DVOYL/graph.json","events_json":"https://pith.science/api/pith-number/RV3BYZXLTXAAB3X2DNPO5DVOYL/events.json","paper":"https://pith.science/paper/RV3BYZXL"},"agent_actions":{"view_html":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL","download_json":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL.json","view_paper":"https://pith.science/paper/RV3BYZXL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1209.5645&json=true","fetch_graph":"https://pith.science/api/pith-number/RV3BYZXLTXAAB3X2DNPO5DVOYL/graph.json","fetch_events":"https://pith.science/api/pith-number/RV3BYZXLTXAAB3X2DNPO5DVOYL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL/action/storage_attestation","attest_author":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL/action/author_attestation","sign_citation":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL/action/citation_signature","submit_replication":"https://pith.science/pith/RV3BYZXLTXAAB3X2DNPO5DVOYL/action/replication_record"}},"created_at":"2026-05-18T03:41:41.844573+00:00","updated_at":"2026-05-18T03:41:41.844573+00:00"}