{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:3EVVX3HMJNRTC2ZGTGJHZT2G5L","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":"bc0a843ab3db17ea56b29740a48d8894d51294f1d500e0d2c284087e32572c69","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-11-17T21:12:01Z","title_canon_sha256":"e3604d2e14483909728a85086fd008e22156b4f8441adbfc41556e1a2d0c4fe2"},"schema_version":"1.0","source":{"id":"1011.4077","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.4077","created_at":"2026-05-18T02:04:44Z"},{"alias_kind":"arxiv_version","alias_value":"1011.4077v1","created_at":"2026-05-18T02:04:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.4077","created_at":"2026-05-18T02:04:44Z"},{"alias_kind":"pith_short_12","alias_value":"3EVVX3HMJNRT","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3EVVX3HMJNRTC2ZG","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3EVVX3HM","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:791f8185439335eab42b5269d04da5d031cfd648ad3479698d6fd72176869d7a","target":"graph","created_at":"2026-05-18T02:04:44Z","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":"A very high resolution (R=200,000), high signal-to-noise ratio (S/N=340) blue-green spectrum of the very metal-poor ([Fe/H]=-2.6) red giant star HD122563 has been obtained by us at McDonald Observatory. We measure the asymmetries and core wavelengths of a set of unblended FeI lines covering a wide range of line strength. Line bisectors exhibit the characteristic C-shape signature of surface convection (granulation) and they span from about 100 m/s in the strongest FeI features to 800 m/s in the weakest ones. Core wavelength shifts range from about -100 to -900 m/s, depending on line strength. ","authors_text":"C. Allende Prieto, D. L. Lambert, I. Ramirez, M. Asplund, R. Collet","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-11-17T21:12:01Z","title":"Granulation signatures in the spectrum of the very metal-poor red giant HD122563"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.4077","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":"sha256:428df39d7985ff9baf0243b80adef9a3b8c1b7f8a7d77fc74ef71eb013e2c921","target":"record","created_at":"2026-05-18T02:04:44Z","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":"bc0a843ab3db17ea56b29740a48d8894d51294f1d500e0d2c284087e32572c69","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-11-17T21:12:01Z","title_canon_sha256":"e3604d2e14483909728a85086fd008e22156b4f8441adbfc41556e1a2d0c4fe2"},"schema_version":"1.0","source":{"id":"1011.4077","kind":"arxiv","version":1}},"canonical_sha256":"d92b5becec4b63316b2699927ccf46eae8a9862081e868329bda1bfa543e8a26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d92b5becec4b63316b2699927ccf46eae8a9862081e868329bda1bfa543e8a26","first_computed_at":"2026-05-18T02:04:44.224498Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:44.224498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O6cZrpiHcRLk3MxehJ05pOvqr++BLWL4LdzB/txUhVIKu0bJgpoqqOvkxU5karMGy/4DS8IW+OXo0ALs5sSNBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:44.225008Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.4077","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:428df39d7985ff9baf0243b80adef9a3b8c1b7f8a7d77fc74ef71eb013e2c921","sha256:791f8185439335eab42b5269d04da5d031cfd648ad3479698d6fd72176869d7a"],"state_sha256":"f96b58e00249a11d33a12fd7d80f90dbce34cc414b20cb79ffccc04126f876bd"}