{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:VC66ZKUG6UZISJBCSS4LSCMBPN","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":"6401d89a3a85a518906f874e873988995278ce259d3afd9752306ee4a8b6ed9a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-06-16T14:09:31Z","title_canon_sha256":"e8f0520c2b27da8625af6841069fe4342abd38475f3e9a7fe44244a719c8609f"},"schema_version":"1.0","source":{"id":"2106.08802","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.08802","created_at":"2026-07-05T03:06:30Z"},{"alias_kind":"arxiv_version","alias_value":"2106.08802v2","created_at":"2026-07-05T03:06:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.08802","created_at":"2026-07-05T03:06:30Z"},{"alias_kind":"pith_short_12","alias_value":"VC66ZKUG6UZI","created_at":"2026-07-05T03:06:30Z"},{"alias_kind":"pith_short_16","alias_value":"VC66ZKUG6UZISJBC","created_at":"2026-07-05T03:06:30Z"},{"alias_kind":"pith_short_8","alias_value":"VC66ZKUG","created_at":"2026-07-05T03:06:30Z"}],"graph_snapshots":[{"event_id":"sha256:4c87626a30d680d7fe1bf174f78e977d8ea69f094088d7f7462fd7763456a8c7","target":"graph","created_at":"2026-07-05T03:06:30Z","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/2106.08802/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report in this paper the test of a plane holographic optical element to be used as an aberration-corrected grating for a slitless spectrograph, inserted in a convergent telescope beam. Our long term objective is the optimisation of a specific hologram to switch the auxiliary telescope imager of the Vera Rubin Observatory into an accurate slitless spectrograph, dedicated to the atmospheric transmission measurement. We present and discuss here the promising results of tests performed with prototype holograms at the CTIO $0.9\\,$m telescope during a run of 17 nights in May-June 2017. After thei","authors_text":"J\\'er\\'emy Neveu, Laurent Le Guillou, Marc Moniez, Sylvie Dagoret-Campagne, Yves Gentet","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-06-16T14:09:31Z","title":"A transmission hologram for slitless spectrophotometry on a convergent telescope beam. 1. Focus and resolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.08802","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:dcf2ccf5427b4d53e429c1738fd987ff2cf25e2f78cfa768587682342c8e207d","target":"record","created_at":"2026-07-05T03:06:30Z","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":"6401d89a3a85a518906f874e873988995278ce259d3afd9752306ee4a8b6ed9a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-06-16T14:09:31Z","title_canon_sha256":"e8f0520c2b27da8625af6841069fe4342abd38475f3e9a7fe44244a719c8609f"},"schema_version":"1.0","source":{"id":"2106.08802","kind":"arxiv","version":2}},"canonical_sha256":"a8bdecaa86f53289242294b8b909817b593a31514422b6a9a4144e38c177fb81","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8bdecaa86f53289242294b8b909817b593a31514422b6a9a4144e38c177fb81","first_computed_at":"2026-07-05T03:06:30.075306Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:06:30.075306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7A4Oez8PgA2JqLuZCUTczzArK6yiZgnZo/akDkKkykNVzs/ObIPcct+zK6tfShvD3lGVBZUHgNEjzX2y0hVsAw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:06:30.075815Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.08802","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcf2ccf5427b4d53e429c1738fd987ff2cf25e2f78cfa768587682342c8e207d","sha256:4c87626a30d680d7fe1bf174f78e977d8ea69f094088d7f7462fd7763456a8c7"],"state_sha256":"5bcf23222103a96d56ac3613cf76ef5449432af51de3d02cc1aee21fcc761186"}