{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NBN2KLCWTU2DIF6VZZIRV6IIEC","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":"da830cb5acac30bb4063b787564783a1d83fa0091dd7ba86291f31c96faa080e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-22T15:18:18Z","title_canon_sha256":"351f24f77bb9ef60ba7ce4b060df6415b54c2a79c37571ae998fd85ffda2267b"},"schema_version":"1.0","source":{"id":"1711.08327","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.08327","created_at":"2026-05-18T00:22:57Z"},{"alias_kind":"arxiv_version","alias_value":"1711.08327v2","created_at":"2026-05-18T00:22:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.08327","created_at":"2026-05-18T00:22:57Z"},{"alias_kind":"pith_short_12","alias_value":"NBN2KLCWTU2D","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NBN2KLCWTU2DIF6V","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NBN2KLCW","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:46aa405ef5a44fb9f83ef7060574f48b3c7eb2a1e24561b04037ad8a23ca853f","target":"graph","created_at":"2026-05-18T00:22:57Z","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":"Cool giant and supergiant star atmospheres are characterized by complex velocity fields originating from convection and pulsation processes which are not fully understood yet. The velocity fields impact the formation of spectral lines, which thus contain information on the dynamics of stellar atmospheres. The tomographic method allows to recover the distribution of the component of the velocity field projected on the line of sight at different optical depths in the stellar atmosphere. The computation of the contribution function to the line depression aims at correctly identifying the depth of","authors_text":"A. Chiavassa, A. Jorissen, B. Freytag, B. Plez, K. Kravchenko, S. Van Eck","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-22T15:18:18Z","title":"Tomography of cool giant and supergiant star atmospheres. I. Validation of the method"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.08327","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":"sha256:0e7844dc9f1f343b8dd17c044183a7a7a16eeb6dd593339cf4535faf52bb4d60","target":"record","created_at":"2026-05-18T00:22:57Z","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":"da830cb5acac30bb4063b787564783a1d83fa0091dd7ba86291f31c96faa080e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-22T15:18:18Z","title_canon_sha256":"351f24f77bb9ef60ba7ce4b060df6415b54c2a79c37571ae998fd85ffda2267b"},"schema_version":"1.0","source":{"id":"1711.08327","kind":"arxiv","version":2}},"canonical_sha256":"685ba52c569d343417d5ce511af908208f3e0d01562b23a8c7ea87b26361ab6a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"685ba52c569d343417d5ce511af908208f3e0d01562b23a8c7ea87b26361ab6a","first_computed_at":"2026-05-18T00:22:57.635833Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:57.635833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P9QoY8600HEL1nLTOOdlO/prihqx+Ee+pOIkuy9jkdofjAPJg3bX7LCGHUoEIdjfP2Zm5+VruXQXjIuG9KmyCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:57.636481Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.08327","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e7844dc9f1f343b8dd17c044183a7a7a16eeb6dd593339cf4535faf52bb4d60","sha256:46aa405ef5a44fb9f83ef7060574f48b3c7eb2a1e24561b04037ad8a23ca853f"],"state_sha256":"2720404b9e3efdf97d26ffe2d16c20111824f278d3f16b32474782dbd4d6aaa8"}