{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:4V6COFHCBXCCBHR3BKHC4RWTM3","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":"451173ec095a55b6baf0a138eb3883ca7f7b139de4d24a2edbec60593f382bd8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-12T16:22:41Z","title_canon_sha256":"002c42ba138725e388bf866a4f77cdf3cf154ff413772cb059dc776683a22416"},"schema_version":"1.0","source":{"id":"astro-ph/0202227","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0202227","created_at":"2026-07-04T16:29:23Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0202227v1","created_at":"2026-07-04T16:29:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0202227","created_at":"2026-07-04T16:29:23Z"},{"alias_kind":"pith_short_12","alias_value":"4V6COFHCBXCC","created_at":"2026-07-04T16:29:23Z"},{"alias_kind":"pith_short_16","alias_value":"4V6COFHCBXCCBHR3","created_at":"2026-07-04T16:29:23Z"},{"alias_kind":"pith_short_8","alias_value":"4V6COFHC","created_at":"2026-07-04T16:29:23Z"}],"graph_snapshots":[{"event_id":"sha256:6e69dd60cef5a7a31df63fa9858b07bb02d5e8cbbba18c690416ea2d54ec6f16","target":"graph","created_at":"2026-07-04T16:29:23Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0202227/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider the effect of optical depth of the 2 ^{3}S level on the nebular recombination spectrum of He I for a spherically symmetric nebula with no systematic velocity gradients. These calculations, using many improvements in atomic data, can be used in place of the earlier calculations of Robbins. We give representative Case B line fluxes for UV, optical, and IR emission lines over a range of physical conditions: T=5000-20000 K, n_{e}=1-10^{8} cm^{-3}, and tau_{3889}=0-100. A FORTRAN program for calculating emissivities for all lines arising from quantum levels with n < 11 is also available","authors_text":"& Derck P. Smits, Evan D. Skillman, Robert A. Benjamin","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-02-12T16:22:41Z","title":"Radiative Transfer Effects in He I Emission Lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0202227","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":"sha256:95970dd1fe8c8fcb8df713a2dd4e32401fc063ef786d591365723a2a0ca45168","target":"record","created_at":"2026-07-04T16:29:23Z","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":"451173ec095a55b6baf0a138eb3883ca7f7b139de4d24a2edbec60593f382bd8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-02-12T16:22:41Z","title_canon_sha256":"002c42ba138725e388bf866a4f77cdf3cf154ff413772cb059dc776683a22416"},"schema_version":"1.0","source":{"id":"astro-ph/0202227","kind":"arxiv","version":1}},"canonical_sha256":"e57c2714e20dc4209e3b0a8e2e46d366f9397372b34a535f2b47d7c18399a55a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e57c2714e20dc4209e3b0a8e2e46d366f9397372b34a535f2b47d7c18399a55a","first_computed_at":"2026-07-04T16:29:23.755080Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:29:23.755080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EbLEIeIAPLkTugd+ohJ1eqZ9aa13eCLiWNLhExJTkKfmBhfTCeQIg/7Ienv6Wxg+Lq3J5JRdyx4ejg8X66MNCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:29:23.755478Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0202227","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95970dd1fe8c8fcb8df713a2dd4e32401fc063ef786d591365723a2a0ca45168","sha256:6e69dd60cef5a7a31df63fa9858b07bb02d5e8cbbba18c690416ea2d54ec6f16"],"state_sha256":"8e76d22859ad3fb09ceb1029ec82517a144a9271ac3ba334534b126e7652a4d9"}