{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:CDYACMU4YMTUQU5FPO3FEOSDI7","short_pith_number":"pith:CDYACMU4","canonical_record":{"source":{"id":"1807.03797","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-10T18:00:10Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"title_canon_sha256":"e758a9141d8201699908763e6ee1be31116ab2b52db3bf8504f3036d3917fc3b","abstract_canon_sha256":"cbb436b976b762b4011992a2331acfc16272308f4f812baa3d31d3d09ceafa16"},"schema_version":"1.0"},"canonical_sha256":"10f001329cc3274853a57bb6523a4347f2b690f92ef3de5afbaaa1e3ffbe6326","source":{"kind":"arxiv","id":"1807.03797","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.03797","created_at":"2026-05-18T00:08:59Z"},{"alias_kind":"arxiv_version","alias_value":"1807.03797v2","created_at":"2026-05-18T00:08:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.03797","created_at":"2026-05-18T00:08:59Z"},{"alias_kind":"pith_short_12","alias_value":"CDYACMU4YMTU","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CDYACMU4YMTUQU5F","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CDYACMU4","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:CDYACMU4YMTUQU5FPO3FEOSDI7","target":"record","payload":{"canonical_record":{"source":{"id":"1807.03797","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-10T18:00:10Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"title_canon_sha256":"e758a9141d8201699908763e6ee1be31116ab2b52db3bf8504f3036d3917fc3b","abstract_canon_sha256":"cbb436b976b762b4011992a2331acfc16272308f4f812baa3d31d3d09ceafa16"},"schema_version":"1.0"},"canonical_sha256":"10f001329cc3274853a57bb6523a4347f2b690f92ef3de5afbaaa1e3ffbe6326","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:59.703891Z","signature_b64":"FO2EInX80+RBgI3KZE0JON+pKWnrswKsDo8j+Gc9hThTQ9wndt/7T2xZoYr4NRE5KixbfnDPM0Vt7BJ5MSYiDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"10f001329cc3274853a57bb6523a4347f2b690f92ef3de5afbaaa1e3ffbe6326","last_reissued_at":"2026-05-18T00:08:59.703330Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:59.703330Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.03797","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:08:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sz8AHZkLCuilwbUygxW1DkPeCw7CWbkL8CdZmB6krIchBwFbCdIuTcAn2OBzlJdFBB45KjH8AGVpgrgJ6a5NBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T14:34:42.270767Z"},"content_sha256":"58f043905033bbdc007b1365cf17dbddac2efc4099f62f4db39aa976902684e5","schema_version":"1.0","event_id":"sha256:58f043905033bbdc007b1365cf17dbddac2efc4099f62f4db39aa976902684e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:CDYACMU4YMTUQU5FPO3FEOSDI7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gemini Infrared Multi-Object Spectrograph: Instrument Overview","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"Adam Muzzin, Alison Peck, Carlos Correia, Colin Bradley, Cyrus Shafai, Dae-Sik Moon, Darren Erickson, David Andersen, Gaetano Sivo, Gregory Fahlman, Howard Yee, Jean-Pierre Veran, Kamal El-Sankary, Kim Venn, Luc Simard, Marcin Sawicki, Marie Lemoine-Busserolle, Masayuki Akiyama, Masen Lamb, Norman Murray, Olivier Lardiere, Paul Hickson, Raymond Carlberg, Roberto Abraham, Sara Ellison, Scott Chapman, Shaojie Chen, Simon Thibault, Suresh Sivanandam, Tim Davidge","submitted_at":"2018-07-10T18:00:10Z","abstract_excerpt":"The Gemini Infrared Multi-Object Spectrograph (GIRMOS) is a powerful new instrument being built to facility-class standards for the Gemini telescope. It takes advantage of the latest developments in adaptive optics and integral field spectrographs. GIRMOS will carry out simultaneous high-angular-resolution, spatially-resolved infrared ($1-2.4$ $\\mu$m) spectroscopy of four objects within a two-arcminute field-of-regard by taking advantage of multi-object adaptive optics. This capability does not currently exist anywhere in the world and therefore offers significant scientific gains over a very "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.03797","kind":"arxiv","version":2},"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":"2026-05-18T00:08:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+bOIlAjXSwqO8JUSuBgJ3NFvsRil8bKVj4As2o/s394MHSM97PEB1reAJzL15kBHYonQgxIcwVtNuK3mwrGIBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T14:34:42.271124Z"},"content_sha256":"38b915fd6dd0dfb215071037fcf3e10a24657eb8b426fecee5afd0f146a73b8d","schema_version":"1.0","event_id":"sha256:38b915fd6dd0dfb215071037fcf3e10a24657eb8b426fecee5afd0f146a73b8d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CDYACMU4YMTUQU5FPO3FEOSDI7/bundle.json","state_url":"https://pith.science/pith/CDYACMU4YMTUQU5FPO3FEOSDI7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CDYACMU4YMTUQU5FPO3FEOSDI7/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":"2026-05-20T14:34:42Z","links":{"resolver":"https://pith.science/pith/CDYACMU4YMTUQU5FPO3FEOSDI7","bundle":"https://pith.science/pith/CDYACMU4YMTUQU5FPO3FEOSDI7/bundle.json","state":"https://pith.science/pith/CDYACMU4YMTUQU5FPO3FEOSDI7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CDYACMU4YMTUQU5FPO3FEOSDI7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CDYACMU4YMTUQU5FPO3FEOSDI7","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":"cbb436b976b762b4011992a2331acfc16272308f4f812baa3d31d3d09ceafa16","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-10T18:00:10Z","title_canon_sha256":"e758a9141d8201699908763e6ee1be31116ab2b52db3bf8504f3036d3917fc3b"},"schema_version":"1.0","source":{"id":"1807.03797","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.03797","created_at":"2026-05-18T00:08:59Z"},{"alias_kind":"arxiv_version","alias_value":"1807.03797v2","created_at":"2026-05-18T00:08:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.03797","created_at":"2026-05-18T00:08:59Z"},{"alias_kind":"pith_short_12","alias_value":"CDYACMU4YMTU","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CDYACMU4YMTUQU5F","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CDYACMU4","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:38b915fd6dd0dfb215071037fcf3e10a24657eb8b426fecee5afd0f146a73b8d","target":"graph","created_at":"2026-05-18T00:08:59Z","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":"The Gemini Infrared Multi-Object Spectrograph (GIRMOS) is a powerful new instrument being built to facility-class standards for the Gemini telescope. It takes advantage of the latest developments in adaptive optics and integral field spectrographs. GIRMOS will carry out simultaneous high-angular-resolution, spatially-resolved infrared ($1-2.4$ $\\mu$m) spectroscopy of four objects within a two-arcminute field-of-regard by taking advantage of multi-object adaptive optics. This capability does not currently exist anywhere in the world and therefore offers significant scientific gains over a very ","authors_text":"Adam Muzzin, Alison Peck, Carlos Correia, Colin Bradley, Cyrus Shafai, Dae-Sik Moon, Darren Erickson, David Andersen, Gaetano Sivo, Gregory Fahlman, Howard Yee, Jean-Pierre Veran, Kamal El-Sankary, Kim Venn, Luc Simard, Marcin Sawicki, Marie Lemoine-Busserolle, Masayuki Akiyama, Masen Lamb, Norman Murray, Olivier Lardiere, Paul Hickson, Raymond Carlberg, Roberto Abraham, Sara Ellison, Scott Chapman, Shaojie Chen, Simon Thibault, Suresh Sivanandam, Tim Davidge","cross_cats":["astro-ph.CO","astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-10T18:00:10Z","title":"Gemini Infrared Multi-Object Spectrograph: Instrument Overview"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.03797","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":"sha256:58f043905033bbdc007b1365cf17dbddac2efc4099f62f4db39aa976902684e5","target":"record","created_at":"2026-05-18T00:08:59Z","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":"cbb436b976b762b4011992a2331acfc16272308f4f812baa3d31d3d09ceafa16","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-10T18:00:10Z","title_canon_sha256":"e758a9141d8201699908763e6ee1be31116ab2b52db3bf8504f3036d3917fc3b"},"schema_version":"1.0","source":{"id":"1807.03797","kind":"arxiv","version":2}},"canonical_sha256":"10f001329cc3274853a57bb6523a4347f2b690f92ef3de5afbaaa1e3ffbe6326","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"10f001329cc3274853a57bb6523a4347f2b690f92ef3de5afbaaa1e3ffbe6326","first_computed_at":"2026-05-18T00:08:59.703330Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:59.703330Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FO2EInX80+RBgI3KZE0JON+pKWnrswKsDo8j+Gc9hThTQ9wndt/7T2xZoYr4NRE5KixbfnDPM0Vt7BJ5MSYiDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:59.703891Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.03797","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58f043905033bbdc007b1365cf17dbddac2efc4099f62f4db39aa976902684e5","sha256:38b915fd6dd0dfb215071037fcf3e10a24657eb8b426fecee5afd0f146a73b8d"],"state_sha256":"9c2742df45911685b10d353861ba8c3a3300c53e9ca57f49082d8e2233c88c00"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"leRvJONm8YXbuFcmO2cKrrkLAk9EmbZ0xJ/LsGCrDzbR0AK9r/Zft5QH1sbGUsfxkwINgWzmo2UluQ2i3DY0Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T14:34:42.273490Z","bundle_sha256":"44d533128950d6bbfb2aa51d38575c790a0fbf098c7b4f22c077d260669e8a50"}}