{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GMMPBN4FAGI36WTLT3N5D3CKUP","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":"07993450f86e1c071cf87a99d9abf71286f1066ab09e605e270b014919f3b3a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-06-30T17:36:45Z","title_canon_sha256":"fdebb7e520c262d9c0925e468c16cfb69fe7bf57f05dae8437d5b28bc2901739"},"schema_version":"1.0","source":{"id":"2106.16229","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.16229","created_at":"2026-07-05T03:16:19Z"},{"alias_kind":"arxiv_version","alias_value":"2106.16229v1","created_at":"2026-07-05T03:16:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.16229","created_at":"2026-07-05T03:16:19Z"},{"alias_kind":"pith_short_12","alias_value":"GMMPBN4FAGI3","created_at":"2026-07-05T03:16:19Z"},{"alias_kind":"pith_short_16","alias_value":"GMMPBN4FAGI36WTL","created_at":"2026-07-05T03:16:19Z"},{"alias_kind":"pith_short_8","alias_value":"GMMPBN4F","created_at":"2026-07-05T03:16:19Z"}],"graph_snapshots":[{"event_id":"sha256:25e35cc2c77445d147a7d1dc7d83ca7a9afd9380bb57fd3c02be32d6b94e0279","target":"graph","created_at":"2026-07-05T03:16:19Z","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/2106.16229/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Variable red- and blue-shifted absorption features observed in the Ca ii K line towards the A-type shell star $\\phi$ Leo have been suggested by us in a previous work to be likely due to solid, comet-like bodies in the circumstellar (CS) environment. Our aim is to expand our observational study of this object to other characteristic spectral lines of A-type photospheres as well as to lines arising in their CS shells. We have obtained more than 500 high-resolution optical spectra collected at different telescopes from December 2015 to January 2019. We have analysed some photospheric lines, in pa","authors_text":"A. Mora, B. Montesinos, C. Eiroa, E. Villaver, G. Meeus, I. Rebollido, J. Maldonado, P. Rivi\\`ere-Marichalar, R. Launhardt, Th. Henning","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-06-30T17:36:45Z","title":"The A-shell star Phi Leo revisited: its photospheric and circumstellar spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.16229","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:ab7b6e9b602661b9fe27f671887017975ad93f458dcf3fd252c3f7265b6b39ee","target":"record","created_at":"2026-07-05T03:16:19Z","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":"07993450f86e1c071cf87a99d9abf71286f1066ab09e605e270b014919f3b3a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-06-30T17:36:45Z","title_canon_sha256":"fdebb7e520c262d9c0925e468c16cfb69fe7bf57f05dae8437d5b28bc2901739"},"schema_version":"1.0","source":{"id":"2106.16229","kind":"arxiv","version":1}},"canonical_sha256":"3318f0b7850191bf5a6b9edbd1ec4aa3f977d60f9d823de65ff9359cbd503004","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3318f0b7850191bf5a6b9edbd1ec4aa3f977d60f9d823de65ff9359cbd503004","first_computed_at":"2026-07-05T03:16:19.997509Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:16:19.997509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TRAKWNdDNaJWcusjZucWVA+LKzzK2QEs1s5/XQFXh3Wlb6VT+xdwPgMCpe0ilH/kGl87dLKEw1iX+ck5A+KPCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:16:19.997972Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.16229","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab7b6e9b602661b9fe27f671887017975ad93f458dcf3fd252c3f7265b6b39ee","sha256:25e35cc2c77445d147a7d1dc7d83ca7a9afd9380bb57fd3c02be32d6b94e0279"],"state_sha256":"14dd527ba0c38811bcebcb569ebb05dd0a65c62c919d65a73a6240a6760b8add"}