{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3IPDDWIGUJFTBOYTLI2JUCLB5A","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":"3be9d9a43ed72f80abb03390032ca7ae97a0edac146a1c519412d25bb9cd30d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-04T18:00:00Z","title_canon_sha256":"1af780561978ecc2be3c71f0f5c6b4d8a172f7ff9161144848956631eff8aafb"},"schema_version":"1.0","source":{"id":"1806.01274","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01274","created_at":"2026-05-18T00:12:16Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01274v1","created_at":"2026-05-18T00:12:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01274","created_at":"2026-05-18T00:12:16Z"},{"alias_kind":"pith_short_12","alias_value":"3IPDDWIGUJFT","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3IPDDWIGUJFTBOYT","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3IPDDWIG","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:104279cbf4145f302436ed808ec81ebbed25cd924278ab706f76d9dd5cce4969","target":"graph","created_at":"2026-05-18T00:12:16Z","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 a study of the C K-edge using high-resolution LETGS Chandra spectra of four novae during their super-soft-source (SSS) phase. We identified absorption lines due to C~ii K$\\alpha$, C~iii K$\\alpha$ and C~ iii K$\\beta$ resonances. We used these astronomical observations to perform a benchmarking of the atomic data, which involves wavelength shifts of the resonances and photoionization cross-sections. We used improved atomic data to estimate the C~ii and C~iii column densities. The absence of physical shifts for the absorption lines, the consistence of the column densities between multi","authors_text":"E. Gatuzz, J. A. Garc\\'ia, J.-U. Ness, M. F. Hasoglu, T. R. Kallman, T. W. Gorczyca","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-04T18:00:00Z","title":"Carbon X-ray absorption in the local ISM: fingerprints in X-ray Novae spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01274","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:e48ce29bc8e4cc737c07378f25fdfbee325bb419483c5073e17900ac7408d81c","target":"record","created_at":"2026-05-18T00:12:16Z","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":"3be9d9a43ed72f80abb03390032ca7ae97a0edac146a1c519412d25bb9cd30d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-04T18:00:00Z","title_canon_sha256":"1af780561978ecc2be3c71f0f5c6b4d8a172f7ff9161144848956631eff8aafb"},"schema_version":"1.0","source":{"id":"1806.01274","kind":"arxiv","version":1}},"canonical_sha256":"da1e31d906a24b30bb135a349a0961e8397fd7b78b10c35ed691ede63523fa0f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da1e31d906a24b30bb135a349a0961e8397fd7b78b10c35ed691ede63523fa0f","first_computed_at":"2026-05-18T00:12:16.689964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:16.689964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X5IReB5ZhcopTnm9NLQmDTJBATavXNdZHQSOCiQB7stziI5J5dueAwx1MhkwMqp9PwCdA063n2e91a1GLmH1BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:16.690517Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.01274","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e48ce29bc8e4cc737c07378f25fdfbee325bb419483c5073e17900ac7408d81c","sha256:104279cbf4145f302436ed808ec81ebbed25cd924278ab706f76d9dd5cce4969"],"state_sha256":"e2e8e2d9363252426a99310507ea269f91b6999923c37e9a32063ffb4320df2c"}