{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KBYWKQU7BOGYHYAGNSSF324DFZ","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":"41c806661997514f003dd9bce7ca95ae186ffbba3d1aa51c05338331162d1605","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-14T21:50:45Z","title_canon_sha256":"22bb3c6a607f21918623feac8c0fadaa07fe8e6e8f0b4acd3c1d89f80dacfb57"},"schema_version":"1.0","source":{"id":"1706.04678","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.04678","created_at":"2026-05-18T00:33:10Z"},{"alias_kind":"arxiv_version","alias_value":"1706.04678v1","created_at":"2026-05-18T00:33:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04678","created_at":"2026-05-18T00:33:10Z"},{"alias_kind":"pith_short_12","alias_value":"KBYWKQU7BOGY","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KBYWKQU7BOGYHYAG","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KBYWKQU7","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:3e8000bc9582be7f0973a8c5c8c7b8704b8c159338e7b384641f2897cd5e49b8","target":"graph","created_at":"2026-05-18T00:33:10Z","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 present the analysis of emission lines in high-resolution optical spectra of the planet-host star Proxima Centauri (Proxima) classified as a M5.5V\\@. We carry out the detailed analysis of observed spectra to get a better understanding of the physical conditions of the atmosphere of this star. We identify the emission lines in a serie series of 147 high-resolution optical spectra of the star at different levels of activity and compare them with the synthetic spectra computed over a wide spectral range. Our synthetic spectra computed with the PHOENIX 2900/5.0/0.0 model atmosphere fits pretty ","authors_text":"AOUG), A. Suarez Mascareno (IAC, CSIC, IAC, J.I. Gonzalez Hernandez (IAC, N. Lodieu (IAC, R. Rebolo (IAC, UH), UL, UL), V. J. S. Bejar (IAC, Ya. V. Pavlenko (MAO","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-14T21:50:45Z","title":"Flare activity and photospheric analysis of Proxima Centauri"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04678","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":"sha256:58b234691656cdfa782645216e153ad71c7e9f2b11481064cade40d2af5f8262","target":"record","created_at":"2026-05-18T00:33:10Z","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":"41c806661997514f003dd9bce7ca95ae186ffbba3d1aa51c05338331162d1605","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-14T21:50:45Z","title_canon_sha256":"22bb3c6a607f21918623feac8c0fadaa07fe8e6e8f0b4acd3c1d89f80dacfb57"},"schema_version":"1.0","source":{"id":"1706.04678","kind":"arxiv","version":1}},"canonical_sha256":"507165429f0b8d83e0066ca45deb832e5293416ee5553ff276768b50b3b3286b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"507165429f0b8d83e0066ca45deb832e5293416ee5553ff276768b50b3b3286b","first_computed_at":"2026-05-18T00:33:10.182950Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:10.182950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZTqikRqKP0jFo+/0TeaZM09DQrknjTwP1Nfswm3Wl857C6dRyLs4whHIcWh9eBtw13R82IXE2eBRSa5vav/mBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:10.183650Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.04678","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58b234691656cdfa782645216e153ad71c7e9f2b11481064cade40d2af5f8262","sha256:3e8000bc9582be7f0973a8c5c8c7b8704b8c159338e7b384641f2897cd5e49b8"],"state_sha256":"ce4aa4f103d279d15fe1a56d432ab6c5860d6224ca395428e8584ece2b6cb79c"}