{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:K7RFZM374PUSAZIIIHRLE4QJNU","short_pith_number":"pith:K7RFZM37","canonical_record":{"source":{"id":"2112.01262","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-02T14:06:59Z","cross_cats_sorted":[],"title_canon_sha256":"d15b7833618110a5842184bc378db76d7fadce9e9e5e921475424608112c5a74","abstract_canon_sha256":"24ec821b0e44a6bf70f1a27e19c82cc7cb6ce674d5df77c639ac19e26937350a"},"schema_version":"1.0"},"canonical_sha256":"57e25cb37fe3e920650841e2b272096d29415c2fa9f6796f105d773c1a9ae5a3","source":{"kind":"arxiv","id":"2112.01262","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.01262","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"arxiv_version","alias_value":"2112.01262v1","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.01262","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"pith_short_12","alias_value":"K7RFZM374PUS","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"pith_short_16","alias_value":"K7RFZM374PUSAZII","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"pith_short_8","alias_value":"K7RFZM37","created_at":"2026-07-05T03:37:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:K7RFZM374PUSAZIIIHRLE4QJNU","target":"record","payload":{"canonical_record":{"source":{"id":"2112.01262","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-02T14:06:59Z","cross_cats_sorted":[],"title_canon_sha256":"d15b7833618110a5842184bc378db76d7fadce9e9e5e921475424608112c5a74","abstract_canon_sha256":"24ec821b0e44a6bf70f1a27e19c82cc7cb6ce674d5df77c639ac19e26937350a"},"schema_version":"1.0"},"canonical_sha256":"57e25cb37fe3e920650841e2b272096d29415c2fa9f6796f105d773c1a9ae5a3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:37:07.298756Z","signature_b64":"4zCx0WD5gYhinUtwy7VM3n3WST//a893dcxI45X1QU9r5R4tLsJPPdvz9JgEaVS/Y0DbTHrdGU/QoRYkSnbYCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57e25cb37fe3e920650841e2b272096d29415c2fa9f6796f105d773c1a9ae5a3","last_reissued_at":"2026-07-05T03:37:07.298190Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:37:07.298190Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.01262","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:37:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JvuFcgASUNK5q7UD5ZLT5t+PXr5fAZQbvoXKMgHoKtJWnhdxaAL8TXraSxGcXBEZU1J0cRkp66Mn1eWtxW9QCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T14:44:23.607604Z"},"content_sha256":"ac25b7e58313183d036d8c204f22d22bdbb1bd2291d2713a760243531b878b29","schema_version":"1.0","event_id":"sha256:ac25b7e58313183d036d8c204f22d22bdbb1bd2291d2713a760243531b878b29"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:K7RFZM374PUSAZIIIHRLE4QJNU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"LINC-NIRVANA Commissioning at the Large Binocular Telescope -- Lessons Learned","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Carmelo Arcidiacono, Fabio P. Santos, Florian Briegel, Jacopo Farinato, John M. Hill, Kalyan Kumar Radhakrishnan Santhakumari, Luca Marafatto, Maria Bergomi, Micah Klettk, Roberto Ragazzoni, Rosalie C. McGurk, Thomas Bertram, Thomas M. Herbst, Valentina Viotto","submitted_at":"2021-12-02T14:06:59Z","abstract_excerpt":"LINC-NIRVANA (LN) is one of the instruments on-board the Large Binocular Telescope (LBT). LN is a high-resolution, near-infrared imager equipped with an advanced adaptive optics module. LN implements layer-oriented Multi-Conjugate Adaptive Optics (MCAO) approach using two independent wavefront sensors per side of the binocular telescope measuring the turbulence volume above the telescope. The capability of acquiring up to 20 Natural Guide Stars simultaneously from two distinct fields of view, and using them for wavefront sensing with 20 separate pyramids per side of the telescope makes the LN "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.01262","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2112.01262/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:37:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Iwz7F0XkK6jwoQEnN1Tvcev32FQwidCK9wXxcSTj0sst8TTtN5w05xMIZ8KDyQ1Hte//hsGxC+TxXHpvX8DsAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T14:44:23.607984Z"},"content_sha256":"f7fdcf0faae44d1422a577c03a1bb1b90efdca5fa75053eff3f972036f83858b","schema_version":"1.0","event_id":"sha256:f7fdcf0faae44d1422a577c03a1bb1b90efdca5fa75053eff3f972036f83858b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K7RFZM374PUSAZIIIHRLE4QJNU/bundle.json","state_url":"https://pith.science/pith/K7RFZM374PUSAZIIIHRLE4QJNU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K7RFZM374PUSAZIIIHRLE4QJNU/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-11T14:44:23Z","links":{"resolver":"https://pith.science/pith/K7RFZM374PUSAZIIIHRLE4QJNU","bundle":"https://pith.science/pith/K7RFZM374PUSAZIIIHRLE4QJNU/bundle.json","state":"https://pith.science/pith/K7RFZM374PUSAZIIIHRLE4QJNU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K7RFZM374PUSAZIIIHRLE4QJNU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:K7RFZM374PUSAZIIIHRLE4QJNU","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":"24ec821b0e44a6bf70f1a27e19c82cc7cb6ce674d5df77c639ac19e26937350a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-02T14:06:59Z","title_canon_sha256":"d15b7833618110a5842184bc378db76d7fadce9e9e5e921475424608112c5a74"},"schema_version":"1.0","source":{"id":"2112.01262","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.01262","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"arxiv_version","alias_value":"2112.01262v1","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.01262","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"pith_short_12","alias_value":"K7RFZM374PUS","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"pith_short_16","alias_value":"K7RFZM374PUSAZII","created_at":"2026-07-05T03:37:07Z"},{"alias_kind":"pith_short_8","alias_value":"K7RFZM37","created_at":"2026-07-05T03:37:07Z"}],"graph_snapshots":[{"event_id":"sha256:f7fdcf0faae44d1422a577c03a1bb1b90efdca5fa75053eff3f972036f83858b","target":"graph","created_at":"2026-07-05T03:37:07Z","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/2112.01262/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"LINC-NIRVANA (LN) is one of the instruments on-board the Large Binocular Telescope (LBT). LN is a high-resolution, near-infrared imager equipped with an advanced adaptive optics module. LN implements layer-oriented Multi-Conjugate Adaptive Optics (MCAO) approach using two independent wavefront sensors per side of the binocular telescope measuring the turbulence volume above the telescope. The capability of acquiring up to 20 Natural Guide Stars simultaneously from two distinct fields of view, and using them for wavefront sensing with 20 separate pyramids per side of the telescope makes the LN ","authors_text":"Carmelo Arcidiacono, Fabio P. Santos, Florian Briegel, Jacopo Farinato, John M. Hill, Kalyan Kumar Radhakrishnan Santhakumari, Luca Marafatto, Maria Bergomi, Micah Klettk, Roberto Ragazzoni, Rosalie C. McGurk, Thomas Bertram, Thomas M. Herbst, Valentina Viotto","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-02T14:06:59Z","title":"LINC-NIRVANA Commissioning at the Large Binocular Telescope -- Lessons Learned"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.01262","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:ac25b7e58313183d036d8c204f22d22bdbb1bd2291d2713a760243531b878b29","target":"record","created_at":"2026-07-05T03:37:07Z","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":"24ec821b0e44a6bf70f1a27e19c82cc7cb6ce674d5df77c639ac19e26937350a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-02T14:06:59Z","title_canon_sha256":"d15b7833618110a5842184bc378db76d7fadce9e9e5e921475424608112c5a74"},"schema_version":"1.0","source":{"id":"2112.01262","kind":"arxiv","version":1}},"canonical_sha256":"57e25cb37fe3e920650841e2b272096d29415c2fa9f6796f105d773c1a9ae5a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57e25cb37fe3e920650841e2b272096d29415c2fa9f6796f105d773c1a9ae5a3","first_computed_at":"2026-07-05T03:37:07.298190Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:37:07.298190Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4zCx0WD5gYhinUtwy7VM3n3WST//a893dcxI45X1QU9r5R4tLsJPPdvz9JgEaVS/Y0DbTHrdGU/QoRYkSnbYCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:37:07.298756Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.01262","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac25b7e58313183d036d8c204f22d22bdbb1bd2291d2713a760243531b878b29","sha256:f7fdcf0faae44d1422a577c03a1bb1b90efdca5fa75053eff3f972036f83858b"],"state_sha256":"02a91b727276a4787a76e669a093935c02daad432c2bdc5c360c310d42d44606"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mIcEEy3uGnN5uP9T4qwYKVnF8kEMAJaN07uBH8JuiWjok3h5gQBBXUZqSu+R5NMh1FEXOEhhPT1PwwKATAbKBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T14:44:23.610384Z","bundle_sha256":"ffd027a040e4fcc95427ed792ad8ba5bbbfbad3f8806b14822313b504d65a187"}}