{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:773WBMLA34FWDYQZQ6UV7JMHYO","short_pith_number":"pith:773WBMLA","canonical_record":{"source":{"id":"1809.01521","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-09-05T14:00:19Z","cross_cats_sorted":[],"title_canon_sha256":"47975ad6281d09584e49c3023236c2d4c60fed499415fa7fc728cdc398f436f4","abstract_canon_sha256":"12c49d6004772f05d636528b10976d3f5bd5e46684437c44480c3cef64c657b3"},"schema_version":"1.0"},"canonical_sha256":"fff760b160df0b61e21987a95fa587c381e7691e9a942f3e0cea6ccc0a01d348","source":{"kind":"arxiv","id":"1809.01521","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.01521","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"arxiv_version","alias_value":"1809.01521v1","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.01521","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"pith_short_12","alias_value":"773WBMLA34FW","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"773WBMLA34FWDYQZ","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"773WBMLA","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:773WBMLA34FWDYQZQ6UV7JMHYO","target":"record","payload":{"canonical_record":{"source":{"id":"1809.01521","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-09-05T14:00:19Z","cross_cats_sorted":[],"title_canon_sha256":"47975ad6281d09584e49c3023236c2d4c60fed499415fa7fc728cdc398f436f4","abstract_canon_sha256":"12c49d6004772f05d636528b10976d3f5bd5e46684437c44480c3cef64c657b3"},"schema_version":"1.0"},"canonical_sha256":"fff760b160df0b61e21987a95fa587c381e7691e9a942f3e0cea6ccc0a01d348","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:27.367612Z","signature_b64":"36mZBEK5+uGFlriw2O+I+0v6HYL5YSolT0MT17kRfJDNhBEC+Lxn78Kuu9a/1ibpThJruKwpMtKQqZoHxk8vAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fff760b160df0b61e21987a95fa587c381e7691e9a942f3e0cea6ccc0a01d348","last_reissued_at":"2026-05-18T00:06:27.367028Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:27.367028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.01521","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":"2026-05-18T00:06:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oxpMi/DapckLyrjun6zyuzR+c9bwHZtzgAQGiAMxZjFJiivk8KUrSb7B1SIiMCfXWS/fEyOmdMeG+x4hXQCKDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:29:25.390435Z"},"content_sha256":"debda7eb9044563a2ae1cd030f1505df812a35d6a65d9e639149fe13b2def5d9","schema_version":"1.0","event_id":"sha256:debda7eb9044563a2ae1cd030f1505df812a35d6a65d9e639149fe13b2def5d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:773WBMLA34FWDYQZQ6UV7JMHYO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical design of the SOXS spectrograph for ESO NTT","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Adam Rubin, Andrea Baruffolo, Andrea Bianco, Anna Brucalassi, Avishay Gal-Yam, Bernardo Salasnich, Daniela Fantinel, Davide Ricci, Enrico Cappellaro, Fabrizio Vitali, Federico Biondi, Francesco D'Alessio, Gianluca Li Causi, Giorgio Pariani, Giuliano Pignata, Giulio Capasso, Hanindyo Kuncarayakti, Iair Arcavi, Jani Achr\\'en, Jari Kotilainen, Johan Fynbo, Jos\\'e Antonio Araiza-Duran, Jussi Lehti, Luca Marafatto, Marco Landoni, Marco Riva, Massimo Della Valle, Massimo Turatto, Matteo Aliverti, Matteo Genoni, Matteo Munari, Michael Rappaport, Mika Hirvonen, Mirko Colapietro, Ofir Hershko, Oz Diner, Paolo D'Avanzo, Pietro Schipani, Ricardo Zanmar Sanchez, Riccardo Claudi, Rosario Cosentino, Sagi Ben-Ami, Salvatore Scuderi, Seppo Mattila, Sergio Campana, Sergio D'Orsi, Stephen Smartt, Tarun Kumar","submitted_at":"2018-09-05T14:00:19Z","abstract_excerpt":"An overview of the optical design for the SOXS spectrograph is presented. SOXS (Son Of X-Shooter) is the new wideband, medium resolution (R>4500) spectrograph for the ESO 3.58m NTT telescope expected to start observations in 2021 at La Silla. The spectroscopic capabilities of SOXS are assured by two different arms. The UV-VIS (350-850 nm) arm is based on a novel concept that adopts the use of 4 ion-etched high efficiency transmission gratings. The NIR (800- 2000 nm) arm adopts the '4C' design (Collimator Correction of Camera Chromatism) successfully applied in X-Shooter. Other optical sub-syst"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.01521","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":""},"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":"2026-05-18T00:06:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zPqYK16EsKCAOA4Yrfqe8Bx/t0C2ZNE2zZ+fRU2ryAyN9cuR4hzrYC6tRSgwXt8daN9k7rLkB3ZoDO6FeWc8Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:29:25.391110Z"},"content_sha256":"1e4af5c7d20b7bfdd1a029c558bc9ba15ef96f37b8a5e89c138706591922045d","schema_version":"1.0","event_id":"sha256:1e4af5c7d20b7bfdd1a029c558bc9ba15ef96f37b8a5e89c138706591922045d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/773WBMLA34FWDYQZQ6UV7JMHYO/bundle.json","state_url":"https://pith.science/pith/773WBMLA34FWDYQZQ6UV7JMHYO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/773WBMLA34FWDYQZQ6UV7JMHYO/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":"2026-05-30T14:29:25Z","links":{"resolver":"https://pith.science/pith/773WBMLA34FWDYQZQ6UV7JMHYO","bundle":"https://pith.science/pith/773WBMLA34FWDYQZQ6UV7JMHYO/bundle.json","state":"https://pith.science/pith/773WBMLA34FWDYQZQ6UV7JMHYO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/773WBMLA34FWDYQZQ6UV7JMHYO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:773WBMLA34FWDYQZQ6UV7JMHYO","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":"12c49d6004772f05d636528b10976d3f5bd5e46684437c44480c3cef64c657b3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-09-05T14:00:19Z","title_canon_sha256":"47975ad6281d09584e49c3023236c2d4c60fed499415fa7fc728cdc398f436f4"},"schema_version":"1.0","source":{"id":"1809.01521","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.01521","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"arxiv_version","alias_value":"1809.01521v1","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.01521","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"pith_short_12","alias_value":"773WBMLA34FW","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"773WBMLA34FWDYQZ","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"773WBMLA","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:1e4af5c7d20b7bfdd1a029c558bc9ba15ef96f37b8a5e89c138706591922045d","target":"graph","created_at":"2026-05-18T00:06:27Z","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":"An overview of the optical design for the SOXS spectrograph is presented. SOXS (Son Of X-Shooter) is the new wideband, medium resolution (R>4500) spectrograph for the ESO 3.58m NTT telescope expected to start observations in 2021 at La Silla. The spectroscopic capabilities of SOXS are assured by two different arms. The UV-VIS (350-850 nm) arm is based on a novel concept that adopts the use of 4 ion-etched high efficiency transmission gratings. The NIR (800- 2000 nm) arm adopts the '4C' design (Collimator Correction of Camera Chromatism) successfully applied in X-Shooter. Other optical sub-syst","authors_text":"Adam Rubin, Andrea Baruffolo, Andrea Bianco, Anna Brucalassi, Avishay Gal-Yam, Bernardo Salasnich, Daniela Fantinel, Davide Ricci, Enrico Cappellaro, Fabrizio Vitali, Federico Biondi, Francesco D'Alessio, Gianluca Li Causi, Giorgio Pariani, Giuliano Pignata, Giulio Capasso, Hanindyo Kuncarayakti, Iair Arcavi, Jani Achr\\'en, Jari Kotilainen, Johan Fynbo, Jos\\'e Antonio Araiza-Duran, Jussi Lehti, Luca Marafatto, Marco Landoni, Marco Riva, Massimo Della Valle, Massimo Turatto, Matteo Aliverti, Matteo Genoni, Matteo Munari, Michael Rappaport, Mika Hirvonen, Mirko Colapietro, Ofir Hershko, Oz Diner, Paolo D'Avanzo, Pietro Schipani, Ricardo Zanmar Sanchez, Riccardo Claudi, Rosario Cosentino, Sagi Ben-Ami, Salvatore Scuderi, Seppo Mattila, Sergio Campana, Sergio D'Orsi, Stephen Smartt, Tarun Kumar","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-09-05T14:00:19Z","title":"Optical design of the SOXS spectrograph for ESO NTT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.01521","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:debda7eb9044563a2ae1cd030f1505df812a35d6a65d9e639149fe13b2def5d9","target":"record","created_at":"2026-05-18T00:06:27Z","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":"12c49d6004772f05d636528b10976d3f5bd5e46684437c44480c3cef64c657b3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-09-05T14:00:19Z","title_canon_sha256":"47975ad6281d09584e49c3023236c2d4c60fed499415fa7fc728cdc398f436f4"},"schema_version":"1.0","source":{"id":"1809.01521","kind":"arxiv","version":1}},"canonical_sha256":"fff760b160df0b61e21987a95fa587c381e7691e9a942f3e0cea6ccc0a01d348","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fff760b160df0b61e21987a95fa587c381e7691e9a942f3e0cea6ccc0a01d348","first_computed_at":"2026-05-18T00:06:27.367028Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:27.367028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"36mZBEK5+uGFlriw2O+I+0v6HYL5YSolT0MT17kRfJDNhBEC+Lxn78Kuu9a/1ibpThJruKwpMtKQqZoHxk8vAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:27.367612Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.01521","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:debda7eb9044563a2ae1cd030f1505df812a35d6a65d9e639149fe13b2def5d9","sha256:1e4af5c7d20b7bfdd1a029c558bc9ba15ef96f37b8a5e89c138706591922045d"],"state_sha256":"0e7ba41a8793ab0b7c0341d3249dadb8b777fd6f06c13e4cd4b1216b5e5cc991"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"REl85GZmDtvSqlKTFZU242hky25O/LIEAMPYMIOQdSNHnjrxMQzPtQ4UOBO5gLPGGBfczG7RBN9TTTowHEdsAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:29:25.393529Z","bundle_sha256":"76536484e5130b093a991f26d3b14efa9febdb54c7414a4eb4fc43c6bab77067"}}