{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:ISGUUG72S4XBJSG3SW45YMZ7JQ","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":"6ee5af352447cbd3a89fc4f4b1120968d5c631d1f55ee95878c2610014bbfca8","cross_cats_sorted":["physics.ao-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-03-13T09:59:17Z","title_canon_sha256":"87d321b0eafd648674c7713267b837ab68c8091f168afc9d7dda5d5d862319f3"},"schema_version":"1.0","source":{"id":"2003.07228","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.07228","created_at":"2026-07-05T00:48:10Z"},{"alias_kind":"arxiv_version","alias_value":"2003.07228v1","created_at":"2026-07-05T00:48:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.07228","created_at":"2026-07-05T00:48:10Z"},{"alias_kind":"pith_short_12","alias_value":"ISGUUG72S4XB","created_at":"2026-07-05T00:48:10Z"},{"alias_kind":"pith_short_16","alias_value":"ISGUUG72S4XBJSG3","created_at":"2026-07-05T00:48:10Z"},{"alias_kind":"pith_short_8","alias_value":"ISGUUG72","created_at":"2026-07-05T00:48:10Z"}],"graph_snapshots":[{"event_id":"sha256:e81a1619c8835a4430d633098f5dd1997c6755035c7977d888b691ba74734777","target":"graph","created_at":"2026-07-05T00:48:10Z","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/2003.07228/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Current designs for all three extremely large telescopes show the overwhelming adoption of the pyramid wavefront sensor (P-WFS) as the WFS of choice for adaptive optics (AO) systems sensing on natural guide stars (NGS) or extended objects. The key advantages of the P-WFS over the Shack-Hartmann are known and are mainly provided by the improved sensitivity (fainter NGS) and reduced sensitivity to spatial aliasing. However, robustness and tolerances of the P-WFS for the ELTs are not currently well understood. In this paper, we present simulation results for the single-conjugate AO mode of HARMON","authors_text":"Benoit Neichel, Carlos Correia, Cyril Petit, Edgard Renault, Elodie Choquet, Fraser Clarke, Ian Bryson, Jean-Fran\\c{c}ois Sauvage, Jerome Paufique, Kacem El Hadi, Kjetil Dohlen, Niranjan Thatte, Noah Schwartz, Thierry Fusco, Vincent Chambouleyron","cross_cats":["physics.ao-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-03-13T09:59:17Z","title":"Design of the HARMONI Pyramid WFS module"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.07228","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":"sha256:88b639a42bd9a424fcc001eea4f772a2f6b5324ff2f07fce7c9a5d2d5a8bd15b","target":"record","created_at":"2026-07-05T00:48:10Z","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":"6ee5af352447cbd3a89fc4f4b1120968d5c631d1f55ee95878c2610014bbfca8","cross_cats_sorted":["physics.ao-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-03-13T09:59:17Z","title_canon_sha256":"87d321b0eafd648674c7713267b837ab68c8091f168afc9d7dda5d5d862319f3"},"schema_version":"1.0","source":{"id":"2003.07228","kind":"arxiv","version":1}},"canonical_sha256":"448d4a1bfa972e14c8db95b9dc333f4c3293efcd3cb1aefc23fd9a8c83028c7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"448d4a1bfa972e14c8db95b9dc333f4c3293efcd3cb1aefc23fd9a8c83028c7e","first_computed_at":"2026-07-05T00:48:10.615866Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:48:10.615866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m9pDIyjALSImFdxT2ABqGdErDs+DdgjLE0An+JkDi2p5MhYSl/xIBI4svhEL2ifScPsuZpJFSNz6uvEy+kC/DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:48:10.616518Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.07228","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:88b639a42bd9a424fcc001eea4f772a2f6b5324ff2f07fce7c9a5d2d5a8bd15b","sha256:e81a1619c8835a4430d633098f5dd1997c6755035c7977d888b691ba74734777"],"state_sha256":"6520b5a1e974a8e5e77d90fe0827090b247ed4739c53eb3545431f257af58826"}