{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:NWLELGJPZNDXXGYDSUGJ5O7VQQ","short_pith_number":"pith:NWLELGJP","canonical_record":{"source":{"id":"1407.4541","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-17T03:01:18Z","cross_cats_sorted":[],"title_canon_sha256":"d53d1ed22e57b0d3ac76ff3717e5653ace63c4d806440709a667b8b652ceb4c0","abstract_canon_sha256":"04a9a5ef28aea61b178be9566671555df36943f3081c92e7f47fbde5871cb909"},"schema_version":"1.0"},"canonical_sha256":"6d9645992fcb477b9b03950c9ebbf5843d2f06ff1c831d5e3974060eecf799ba","source":{"kind":"arxiv","id":"1407.4541","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.4541","created_at":"2026-05-18T01:42:35Z"},{"alias_kind":"arxiv_version","alias_value":"1407.4541v1","created_at":"2026-05-18T01:42:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.4541","created_at":"2026-05-18T01:42:35Z"},{"alias_kind":"pith_short_12","alias_value":"NWLELGJPZNDX","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NWLELGJPZNDXXGYD","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NWLELGJP","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:NWLELGJPZNDXXGYDSUGJ5O7VQQ","target":"record","payload":{"canonical_record":{"source":{"id":"1407.4541","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-17T03:01:18Z","cross_cats_sorted":[],"title_canon_sha256":"d53d1ed22e57b0d3ac76ff3717e5653ace63c4d806440709a667b8b652ceb4c0","abstract_canon_sha256":"04a9a5ef28aea61b178be9566671555df36943f3081c92e7f47fbde5871cb909"},"schema_version":"1.0"},"canonical_sha256":"6d9645992fcb477b9b03950c9ebbf5843d2f06ff1c831d5e3974060eecf799ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:35.877343Z","signature_b64":"krKbpmUMUWlKK8rw7AmJUhP3EM2bH4ZP3fwHzX0/R29IMvGP01ic7GrqmNSQsm34e7JyCzC2aD6S02p4L3a6AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d9645992fcb477b9b03950c9ebbf5843d2f06ff1c831d5e3974060eecf799ba","last_reissued_at":"2026-05-18T01:42:35.876791Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:35.876791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.4541","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":"2026-05-18T01:42:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bOrxUQBLQ4A1rbAM2UbJk8QIwvimOSm7QgyrbTdnqIiIrFkoMhF8nGeV2t9OXAjkW6D9w1n1H+sYdgTVnvcHAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T22:25:36.859228Z"},"content_sha256":"4751833ca3ec92786eff0969b89ff3b2cfadf12ce20f26eb246c2405a403da4e","schema_version":"1.0","event_id":"sha256:4751833ca3ec92786eff0969b89ff3b2cfadf12ce20f26eb246c2405a403da4e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:NWLELGJPZNDXXGYDSUGJ5O7VQQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"KOSMOS and COSMOS: New facility instruments for the NOAO 4-meter telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"D.P. Pappalardo, D. Sprayberry (NOAO), G. Poczulp, J.A. Mason, J. Elias, J.R. George, K. Zelaya, M.A. Derwent, M. Fitzpatrick, M. Hunten, M. Trueblood, Paul Martini (Ohio State), P. Daly, R. Gonzalez, R. Marshall, R. Seaman, R. Stoll, R.W. Pogge, R. Zhelem, S. Points, S. Rath, T.P. O'Brien","submitted_at":"2014-07-17T03:01:18Z","abstract_excerpt":"We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph (KOSMOS) for the 4-m Mayall telescope and the Cerro Tololo Ohio State Multi-Object Spectrograph (COSMOS) for the 4-m Blanco telescope. These nearly identical imaging spectrographs are modified versions of the OSMOS instrument; they provide a pair of new, high-efficiency instruments to the NOAO user community. KOSMOS and COSMOS may be used for imaging, long-slit, and multi-slit spectroscopy over a 100 square arcminute field of view with a pixel scale of 0.29 arcseconds. Each conta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.4541","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":"2026-05-18T01:42:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jUhvgyeU+beSevPdkynUJXGQZDyyvINaoUWpNvKUNjnlF+FAk+6NejBL2GaBb6IbuPA66nE6XAzgS7Dgf8U8Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T22:25:36.859784Z"},"content_sha256":"98314ca6bb897782edf6fd167fb15e41dead6163830cbd388ed0a4b96f1b3f2e","schema_version":"1.0","event_id":"sha256:98314ca6bb897782edf6fd167fb15e41dead6163830cbd388ed0a4b96f1b3f2e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NWLELGJPZNDXXGYDSUGJ5O7VQQ/bundle.json","state_url":"https://pith.science/pith/NWLELGJPZNDXXGYDSUGJ5O7VQQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NWLELGJPZNDXXGYDSUGJ5O7VQQ/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":"2026-06-04T22:25:36Z","links":{"resolver":"https://pith.science/pith/NWLELGJPZNDXXGYDSUGJ5O7VQQ","bundle":"https://pith.science/pith/NWLELGJPZNDXXGYDSUGJ5O7VQQ/bundle.json","state":"https://pith.science/pith/NWLELGJPZNDXXGYDSUGJ5O7VQQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NWLELGJPZNDXXGYDSUGJ5O7VQQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:NWLELGJPZNDXXGYDSUGJ5O7VQQ","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":"04a9a5ef28aea61b178be9566671555df36943f3081c92e7f47fbde5871cb909","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-17T03:01:18Z","title_canon_sha256":"d53d1ed22e57b0d3ac76ff3717e5653ace63c4d806440709a667b8b652ceb4c0"},"schema_version":"1.0","source":{"id":"1407.4541","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.4541","created_at":"2026-05-18T01:42:35Z"},{"alias_kind":"arxiv_version","alias_value":"1407.4541v1","created_at":"2026-05-18T01:42:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.4541","created_at":"2026-05-18T01:42:35Z"},{"alias_kind":"pith_short_12","alias_value":"NWLELGJPZNDX","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NWLELGJPZNDXXGYD","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NWLELGJP","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:98314ca6bb897782edf6fd167fb15e41dead6163830cbd388ed0a4b96f1b3f2e","target":"graph","created_at":"2026-05-18T01:42:35Z","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":"We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph (KOSMOS) for the 4-m Mayall telescope and the Cerro Tololo Ohio State Multi-Object Spectrograph (COSMOS) for the 4-m Blanco telescope. These nearly identical imaging spectrographs are modified versions of the OSMOS instrument; they provide a pair of new, high-efficiency instruments to the NOAO user community. KOSMOS and COSMOS may be used for imaging, long-slit, and multi-slit spectroscopy over a 100 square arcminute field of view with a pixel scale of 0.29 arcseconds. Each conta","authors_text":"D.P. Pappalardo, D. Sprayberry (NOAO), G. Poczulp, J.A. Mason, J. Elias, J.R. George, K. Zelaya, M.A. Derwent, M. Fitzpatrick, M. Hunten, M. Trueblood, Paul Martini (Ohio State), P. Daly, R. Gonzalez, R. Marshall, R. Seaman, R. Stoll, R.W. Pogge, R. Zhelem, S. Points, S. Rath, T.P. O'Brien","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-17T03:01:18Z","title":"KOSMOS and COSMOS: New facility instruments for the NOAO 4-meter telescopes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.4541","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":"sha256:4751833ca3ec92786eff0969b89ff3b2cfadf12ce20f26eb246c2405a403da4e","target":"record","created_at":"2026-05-18T01:42:35Z","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":"04a9a5ef28aea61b178be9566671555df36943f3081c92e7f47fbde5871cb909","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-07-17T03:01:18Z","title_canon_sha256":"d53d1ed22e57b0d3ac76ff3717e5653ace63c4d806440709a667b8b652ceb4c0"},"schema_version":"1.0","source":{"id":"1407.4541","kind":"arxiv","version":1}},"canonical_sha256":"6d9645992fcb477b9b03950c9ebbf5843d2f06ff1c831d5e3974060eecf799ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6d9645992fcb477b9b03950c9ebbf5843d2f06ff1c831d5e3974060eecf799ba","first_computed_at":"2026-05-18T01:42:35.876791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:35.876791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"krKbpmUMUWlKK8rw7AmJUhP3EM2bH4ZP3fwHzX0/R29IMvGP01ic7GrqmNSQsm34e7JyCzC2aD6S02p4L3a6AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:35.877343Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.4541","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4751833ca3ec92786eff0969b89ff3b2cfadf12ce20f26eb246c2405a403da4e","sha256:98314ca6bb897782edf6fd167fb15e41dead6163830cbd388ed0a4b96f1b3f2e"],"state_sha256":"44e8d47339a7a6d7a34cf7c767d7754e51f91bb809727886a138cdf38d8eb76c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gEOb5iimwLn1WAknFVPwhgkuo+Z4ZsjgwaLoBFA6tAoRKr0WB501VmUnqx59vAJ3uXclOjDQXGOGMIwmB7xvCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T22:25:36.862856Z","bundle_sha256":"5926e28270952f7a68724f86ed6dcbd3479fbcca3bf038f25afc1be272c47e2f"}}