{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:MNS7T7YQRB7WUTEUJRDGVPCO4G","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":"cfc452caf573843bead078a56fa14664135bc53e1119945d55ab3864c307bd8e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1995-09-05T11:32:21Z","title_canon_sha256":"50f4646c7704e0dbdbd7f69327ca20fcd36c020a462d1e3ee6a8abaf71b9699b"},"schema_version":"1.0","source":{"id":"astro-ph/9509020","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9509020","created_at":"2026-07-04T14:14:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9509020v1","created_at":"2026-07-04T14:14:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9509020","created_at":"2026-07-04T14:14:36Z"},{"alias_kind":"pith_short_12","alias_value":"MNS7T7YQRB7W","created_at":"2026-07-04T14:14:36Z"},{"alias_kind":"pith_short_16","alias_value":"MNS7T7YQRB7WUTEU","created_at":"2026-07-04T14:14:36Z"},{"alias_kind":"pith_short_8","alias_value":"MNS7T7YQ","created_at":"2026-07-04T14:14:36Z"}],"graph_snapshots":[{"event_id":"sha256:b90f459e32b6f18f65676cc9d56c7086793b3636cc9043644dc9dc4c676ff8b3","target":"graph","created_at":"2026-07-04T14:14:36Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/9509020/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present results of a study of the soft X-ray excess in the black hole candidate Cygnus X-1 made with the {\\it Rosat PSPC}, using observations taken during persistent emission at orbital phases close to 0.5. The soft excess can be well fitted as a blackbody with temperature $\\rm {kT_{bb}}$ = $\\rm {0.13\\pm 0.02}$ keV. $\\rm {kT_{bb}}$ did not vary appreciably with intensity of the source. By assuming that the distance of the source is its lower limit of 2.5 kpc, a luminosity of the soft excess of $\\rm {4.7\\cdot 10^{36}}$ erg $\\rm {s^{-1}}$ was obtained. From this, disc temperatures were calcul","authors_text":"G. Hasinger, M. Balucinska-Church, M. J. Church, T. Belloni","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1995-09-05T11:32:21Z","title":"Identification of the soft X-ray excess in Cygnus X-1 with disc emission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9509020","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":"sha256:26768a5c66a3fc2322b816a9d62f6cca87847bfcdd1c43ae69565d184b7ef555","target":"record","created_at":"2026-07-04T14:14:36Z","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":"cfc452caf573843bead078a56fa14664135bc53e1119945d55ab3864c307bd8e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1995-09-05T11:32:21Z","title_canon_sha256":"50f4646c7704e0dbdbd7f69327ca20fcd36c020a462d1e3ee6a8abaf71b9699b"},"schema_version":"1.0","source":{"id":"astro-ph/9509020","kind":"arxiv","version":1}},"canonical_sha256":"6365f9ff10887f6a4c944c466abc4ee1bdd0f5f4dc52c2311ff0347c43ded9fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6365f9ff10887f6a4c944c466abc4ee1bdd0f5f4dc52c2311ff0347c43ded9fd","first_computed_at":"2026-07-04T14:14:36.526458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:14:36.526458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NVokcPczoLVoGAia+H/rN+fTSjAOKbym9RRHtYiL1thoYEq6SE47jpzgIVtrFpPI9ai9DcKjXndKXwAzhlrxBg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:14:36.526808Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9509020","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:26768a5c66a3fc2322b816a9d62f6cca87847bfcdd1c43ae69565d184b7ef555","sha256:b90f459e32b6f18f65676cc9d56c7086793b3636cc9043644dc9dc4c676ff8b3"],"state_sha256":"6d0faf41053644db658871334b40ceec04eb47cb2cb851805b7116fd2f29c233"}