{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:64ZEAOFBAYGUK2C2Z6GYE3Z5Q5","short_pith_number":"pith:64ZEAOFB","schema_version":"1.0","canonical_sha256":"f7324038a1060d45685acf8d826f3d874860af723ad08b6c3da6c3da95e47c8f","source":{"kind":"arxiv","id":"astro-ph/9704229","version":1},"attestation_state":"computed","paper":{"title":"Ginga observations of Cygnus X-2","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E. Kuulkers, G. Hasinger, K. Asai, M. van der Klis, R. A. D. Wijnands","submitted_at":"1997-04-23T15:27:36Z","abstract_excerpt":"We analysed all X-ray data on the low-mass X-ray binary Cygnus X-2 obtained with Ginga. The analysis of the spectral and fast timing behaviour of these 4 years of data provides new insights in the behaviour of this Z source. We confirm the previously observed recurrent patterns of behaviour in the X-ray colour-colour and hardness-intensity diagrams (HIDs) consisting of shifts and shape changes in the Z track. The source behaviour is correlated with overall intensity. When the overall intensity increases, the mean velocity of the motion along the normal branch (NB) of the Z track increase, as w"},"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":"astro-ph/9704229","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-04-23T15:27:36Z","cross_cats_sorted":[],"title_canon_sha256":"196f64ef82d7b99598a0053550d7a18203adcf0e37e8c52fa1171ace5db87ba3","abstract_canon_sha256":"3943c7b4f554fdf96d5b09aa4a505da564f5b76323799035fa45fe4bf5125421"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:15:06.369550Z","signature_b64":"xk8TQ+Ntz+bDKft7ueD8jg3ZqWdseT4zeNfx+pMpkFWgZdC2i+yPNWEzomJeHceUCXg72zphnysHlHFvrJmjBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7324038a1060d45685acf8d826f3d874860af723ad08b6c3da6c3da95e47c8f","last_reissued_at":"2026-07-04T14:15:06.369126Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:15:06.369126Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ginga observations of Cygnus X-2","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E. Kuulkers, G. Hasinger, K. Asai, M. van der Klis, R. A. D. Wijnands","submitted_at":"1997-04-23T15:27:36Z","abstract_excerpt":"We analysed all X-ray data on the low-mass X-ray binary Cygnus X-2 obtained with Ginga. The analysis of the spectral and fast timing behaviour of these 4 years of data provides new insights in the behaviour of this Z source. We confirm the previously observed recurrent patterns of behaviour in the X-ray colour-colour and hardness-intensity diagrams (HIDs) consisting of shifts and shape changes in the Z track. The source behaviour is correlated with overall intensity. When the overall intensity increases, the mean velocity of the motion along the normal branch (NB) of the Z track increase, as w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9704229","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9704229/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"astro-ph/9704229","created_at":"2026-07-04T14:15:06.369192+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9704229v1","created_at":"2026-07-04T14:15:06.369192+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9704229","created_at":"2026-07-04T14:15:06.369192+00:00"},{"alias_kind":"pith_short_12","alias_value":"64ZEAOFBAYGU","created_at":"2026-07-04T14:15:06.369192+00:00"},{"alias_kind":"pith_short_16","alias_value":"64ZEAOFBAYGUK2C2","created_at":"2026-07-04T14:15:06.369192+00:00"},{"alias_kind":"pith_short_8","alias_value":"64ZEAOFB","created_at":"2026-07-04T14:15:06.369192+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/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5","json":"https://pith.science/pith/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5.json","graph_json":"https://pith.science/api/pith-number/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/graph.json","events_json":"https://pith.science/api/pith-number/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/events.json","paper":"https://pith.science/paper/64ZEAOFB"},"agent_actions":{"view_html":"https://pith.science/pith/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5","download_json":"https://pith.science/pith/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5.json","view_paper":"https://pith.science/paper/64ZEAOFB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9704229&json=true","fetch_graph":"https://pith.science/api/pith-number/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/graph.json","fetch_events":"https://pith.science/api/pith-number/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/action/storage_attestation","attest_author":"https://pith.science/pith/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/action/author_attestation","sign_citation":"https://pith.science/pith/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/action/citation_signature","submit_replication":"https://pith.science/pith/64ZEAOFBAYGUK2C2Z6GYE3Z5Q5/action/replication_record"}},"created_at":"2026-07-04T14:15:06.369192+00:00","updated_at":"2026-07-04T14:15:06.369192+00:00"}