{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:HCS5VNTA2SCFWMFKKVQ6DJ6G2L","short_pith_number":"pith:HCS5VNTA","canonical_record":{"source":{"id":"1601.06024","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-01-22T14:46:43Z","cross_cats_sorted":[],"title_canon_sha256":"a3e07e134727e6baa560938e22a6b633d28f592737c095a5aea45fe0f61f879a","abstract_canon_sha256":"1c34e831453d439faa4b03f6d44e234a9361f6d23cc5e7f0bb82ced8a6b21b03"},"schema_version":"1.0"},"canonical_sha256":"38a5dab660d4845b30aa5561e1a7c6d2c5904abd4d331a3486da878868029097","source":{"kind":"arxiv","id":"1601.06024","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.06024","created_at":"2026-05-18T01:22:09Z"},{"alias_kind":"arxiv_version","alias_value":"1601.06024v1","created_at":"2026-05-18T01:22:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.06024","created_at":"2026-05-18T01:22:09Z"},{"alias_kind":"pith_short_12","alias_value":"HCS5VNTA2SCF","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"HCS5VNTA2SCFWMFK","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"HCS5VNTA","created_at":"2026-05-18T12:30:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:HCS5VNTA2SCFWMFKKVQ6DJ6G2L","target":"record","payload":{"canonical_record":{"source":{"id":"1601.06024","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-01-22T14:46:43Z","cross_cats_sorted":[],"title_canon_sha256":"a3e07e134727e6baa560938e22a6b633d28f592737c095a5aea45fe0f61f879a","abstract_canon_sha256":"1c34e831453d439faa4b03f6d44e234a9361f6d23cc5e7f0bb82ced8a6b21b03"},"schema_version":"1.0"},"canonical_sha256":"38a5dab660d4845b30aa5561e1a7c6d2c5904abd4d331a3486da878868029097","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:09.525170Z","signature_b64":"Fjxw7s/FTPTkLqtatWPcTog2T1FgSN6bRVORXBvXwxVISkOp9I6y2Ne2w3KIBiFV8luSgkw+kse60faqxDYICQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38a5dab660d4845b30aa5561e1a7c6d2c5904abd4d331a3486da878868029097","last_reissued_at":"2026-05-18T01:22:09.524539Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:09.524539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.06024","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":"2026-05-18T01:22:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KBCwXwJR9xnyZyXemlwmY1TUnljBPr2c+0SJGI7IuJNEBLCgNRxr+Dv0o/wiioCEnjf70vs94VPRvfuHCx4VBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T02:14:08.810821Z"},"content_sha256":"a6f5e7cf6a5b9fe94e070df525c75c2df6f17ccf36a88de5161ebade76dd7a28","schema_version":"1.0","event_id":"sha256:a6f5e7cf6a5b9fe94e070df525c75c2df6f17ccf36a88de5161ebade76dd7a28"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:HCS5VNTA2SCFWMFKKVQ6DJ6G2L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design and Construction of VUES: the Vilnius University Echelle Spectrograph","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Andrew Szymkowiak, Colby Jurgenson, David Sawyer, Debra Fischer, Fernando Santoro, Gary Muller, Matt Giguere, Tyler McCracken","submitted_at":"2016-01-22T14:46:43Z","abstract_excerpt":"In February of 2014 the Yale Exoplanet Laboratory was commissioned to design, build, and deliver a high resolution (R = 60,000) spectrograph for the 1.65-meter telescope at the Moletai Astronomical Observatory. The observatory is operated by the Institute of Theoretical Physics and Astronomy at Vilnius University. The Vilnius University Echelle Spectrograph (VUES) is a white-pupil design that is fed via an octagonal fiber from the telescope and has an operational bandpass from 400 to 880 nm. VUES incorporates a novel modular optomechanical design that allows for quick assembly and alignment on"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06024","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":"2026-05-18T01:22:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IUDi1HzJ5fRR8KXXV1NQQ78d+dlticlXbEaQLXbssd9CwYQX6bRZ2Pf1rgfW+vzxrlh4c6o1DLW8Bye+zAx6Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T02:14:08.811268Z"},"content_sha256":"f4e32a2644df6adde1514730f63f774f110cc272b0a769fbbb3e3b722d4f8efb","schema_version":"1.0","event_id":"sha256:f4e32a2644df6adde1514730f63f774f110cc272b0a769fbbb3e3b722d4f8efb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HCS5VNTA2SCFWMFKKVQ6DJ6G2L/bundle.json","state_url":"https://pith.science/pith/HCS5VNTA2SCFWMFKKVQ6DJ6G2L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HCS5VNTA2SCFWMFKKVQ6DJ6G2L/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":"2026-05-20T02:14:08Z","links":{"resolver":"https://pith.science/pith/HCS5VNTA2SCFWMFKKVQ6DJ6G2L","bundle":"https://pith.science/pith/HCS5VNTA2SCFWMFKKVQ6DJ6G2L/bundle.json","state":"https://pith.science/pith/HCS5VNTA2SCFWMFKKVQ6DJ6G2L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HCS5VNTA2SCFWMFKKVQ6DJ6G2L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:HCS5VNTA2SCFWMFKKVQ6DJ6G2L","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":"1c34e831453d439faa4b03f6d44e234a9361f6d23cc5e7f0bb82ced8a6b21b03","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-01-22T14:46:43Z","title_canon_sha256":"a3e07e134727e6baa560938e22a6b633d28f592737c095a5aea45fe0f61f879a"},"schema_version":"1.0","source":{"id":"1601.06024","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.06024","created_at":"2026-05-18T01:22:09Z"},{"alias_kind":"arxiv_version","alias_value":"1601.06024v1","created_at":"2026-05-18T01:22:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.06024","created_at":"2026-05-18T01:22:09Z"},{"alias_kind":"pith_short_12","alias_value":"HCS5VNTA2SCF","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"HCS5VNTA2SCFWMFK","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"HCS5VNTA","created_at":"2026-05-18T12:30:19Z"}],"graph_snapshots":[{"event_id":"sha256:f4e32a2644df6adde1514730f63f774f110cc272b0a769fbbb3e3b722d4f8efb","target":"graph","created_at":"2026-05-18T01:22:09Z","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":"In February of 2014 the Yale Exoplanet Laboratory was commissioned to design, build, and deliver a high resolution (R = 60,000) spectrograph for the 1.65-meter telescope at the Moletai Astronomical Observatory. The observatory is operated by the Institute of Theoretical Physics and Astronomy at Vilnius University. The Vilnius University Echelle Spectrograph (VUES) is a white-pupil design that is fed via an octagonal fiber from the telescope and has an operational bandpass from 400 to 880 nm. VUES incorporates a novel modular optomechanical design that allows for quick assembly and alignment on","authors_text":"Andrew Szymkowiak, Colby Jurgenson, David Sawyer, Debra Fischer, Fernando Santoro, Gary Muller, Matt Giguere, Tyler McCracken","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-01-22T14:46:43Z","title":"Design and Construction of VUES: the Vilnius University Echelle Spectrograph"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06024","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:a6f5e7cf6a5b9fe94e070df525c75c2df6f17ccf36a88de5161ebade76dd7a28","target":"record","created_at":"2026-05-18T01:22:09Z","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":"1c34e831453d439faa4b03f6d44e234a9361f6d23cc5e7f0bb82ced8a6b21b03","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-01-22T14:46:43Z","title_canon_sha256":"a3e07e134727e6baa560938e22a6b633d28f592737c095a5aea45fe0f61f879a"},"schema_version":"1.0","source":{"id":"1601.06024","kind":"arxiv","version":1}},"canonical_sha256":"38a5dab660d4845b30aa5561e1a7c6d2c5904abd4d331a3486da878868029097","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38a5dab660d4845b30aa5561e1a7c6d2c5904abd4d331a3486da878868029097","first_computed_at":"2026-05-18T01:22:09.524539Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:09.524539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fjxw7s/FTPTkLqtatWPcTog2T1FgSN6bRVORXBvXwxVISkOp9I6y2Ne2w3KIBiFV8luSgkw+kse60faqxDYICQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:09.525170Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.06024","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6f5e7cf6a5b9fe94e070df525c75c2df6f17ccf36a88de5161ebade76dd7a28","sha256:f4e32a2644df6adde1514730f63f774f110cc272b0a769fbbb3e3b722d4f8efb"],"state_sha256":"5a65784d0491f255e8fa89a311bcc6d0794cd8e8781e075f8424e364d6a9e323"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"swuOEqR0gVCCdGZ6bGr/p/tsbNiMkM0Bjvzcf83QDBIdTcwZiBiXk8+LVwK2FPijDrwXqwXXZl0j81bG/MksCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T02:14:08.813407Z","bundle_sha256":"20ed96663d932e67cd5bcc27b071a7e3f440992289c0cf5285a08f4f2c7a6f26"}}