{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:OUY5VUI5XKWAISBVAC76ML43RR","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":"7cb0f5e46eda688cc941f0a6e146764c606373b202770815d668e3a3c8108a06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-26T10:53:54Z","title_canon_sha256":"3341c5a8fc24c37378a25a8c72144da5a45f79ca599de3d97eb96d289a539a06"},"schema_version":"1.0","source":{"id":"1210.7096","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.7096","created_at":"2026-05-18T03:38:23Z"},{"alias_kind":"arxiv_version","alias_value":"1210.7096v2","created_at":"2026-05-18T03:38:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7096","created_at":"2026-05-18T03:38:23Z"},{"alias_kind":"pith_short_12","alias_value":"OUY5VUI5XKWA","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"OUY5VUI5XKWAISBV","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"OUY5VUI5","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:9c5d1a0d3526cde5c24303712d0423aee0b1b10f5bd9cb927f18a2cacfc57966","target":"graph","created_at":"2026-05-18T03:38:23Z","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":"We examine the feasibility of using medium resolution spectra for determining the parameters of atmospheres of hot stars by means of numerical simulations. We chose the star Cyg OB2 No7 as a test object and obtained its spectrum (\\lambda/\\Delta\\lambda=2500) with Russian-Turkish RTT150 telescope. The CMFGEN code was used to construct a model of the atmosphere of Cyg OB2 No7. For the first time we have detected the NIV \\lambda\\lambda 7103.2-7129.2 lines in the spectrum of this star and used them to determine the physical parameters of the wind. The rate of mass loss measured using the H$\\alpha$ ","authors_text":"Olga Maryeva, Roman Zhuchkov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-26T10:53:54Z","title":"Medium resolution spectroscopy of the supergiant O3If* Cyg OB2 No7"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7096","kind":"arxiv","version":2},"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":"sha256:6247cf25ed76381a32268223f0e896ce07f09fd39c18b7c8834452681cfc0257","target":"record","created_at":"2026-05-18T03:38:23Z","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":"7cb0f5e46eda688cc941f0a6e146764c606373b202770815d668e3a3c8108a06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-26T10:53:54Z","title_canon_sha256":"3341c5a8fc24c37378a25a8c72144da5a45f79ca599de3d97eb96d289a539a06"},"schema_version":"1.0","source":{"id":"1210.7096","kind":"arxiv","version":2}},"canonical_sha256":"7531dad11dbaac04483500bfe62f9b8c5d524f0d63fb4b126bd2344f1210b805","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7531dad11dbaac04483500bfe62f9b8c5d524f0d63fb4b126bd2344f1210b805","first_computed_at":"2026-05-18T03:38:23.009804Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:38:23.009804Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XIfvlvbQKhsrg/3Ymotm7J0ZfOkBpnrDPe0EqlJJECxLsP6fBnTQGkVS3V/fObDNxP3pjqr/ZwTrvFn9qv6XBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:38:23.010763Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.7096","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6247cf25ed76381a32268223f0e896ce07f09fd39c18b7c8834452681cfc0257","sha256:9c5d1a0d3526cde5c24303712d0423aee0b1b10f5bd9cb927f18a2cacfc57966"],"state_sha256":"24661f18c10b373e0a4a3020b2ebf83dbbb9c8b5f13dc8e8cde7f83af2cfae3b"}