{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:ORYISK4ZGLOCLJZ5GBYOABUZIR","short_pith_number":"pith:ORYISK4Z","schema_version":"1.0","canonical_sha256":"7470892b9932dc25a73d3070e006994453fd03207aa0e8369e21ac74fede3e50","source":{"kind":"arxiv","id":"1804.06176","version":1},"attestation_state":"computed","paper":{"title":"Experimental study of an advanced concept of moderate-resolution holographic spectrographs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Eduard Emelyanov, Eduard Muslimov, Faig Musaev, Gazinur Galazutdinov, Gennady Valyavin, Nadezhda Pavlycheva, Sergei Fabrika","submitted_at":"2018-04-17T11:50:20Z","abstract_excerpt":"We present the results of an experimental study of an advanced moderate-resolution spectrograph based on a cascade of narrow-band holographic gratings. The main goal of the project is to achieve a moderately high spectral resolutionwith R up to 5000 simultaneously in the 4300-6800 A visible spectral range on a single standard CCD, together with an increased throughput. The experimental study consisted of (1) resolution and image quality tests performed using the solar spectrum; and (2) a total throughput test performed for a number of wavelengths using a calibrated lab monochromator. The measu"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1804.06176","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-04-17T11:50:20Z","cross_cats_sorted":[],"title_canon_sha256":"46de8de4e0c10838b7bd75f13aebf45a76f797a39cc9af608cf908622d3d4bf5","abstract_canon_sha256":"20ac166927dd7498aa23905f37d9749a060fab95bcc05d0282f591b22db4fb60"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:36.286791Z","signature_b64":"0IoGabUEySejvdnK2iblOCL6KrnYQYau5H2/Znh+BejMWE5jkHgXG3cdX5ZN8hvRdlTqxd1Wce5+2xFG5zXXAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7470892b9932dc25a73d3070e006994453fd03207aa0e8369e21ac74fede3e50","last_reissued_at":"2026-05-18T00:15:36.286059Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:36.286059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Experimental study of an advanced concept of moderate-resolution holographic spectrographs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Eduard Emelyanov, Eduard Muslimov, Faig Musaev, Gazinur Galazutdinov, Gennady Valyavin, Nadezhda Pavlycheva, Sergei Fabrika","submitted_at":"2018-04-17T11:50:20Z","abstract_excerpt":"We present the results of an experimental study of an advanced moderate-resolution spectrograph based on a cascade of narrow-band holographic gratings. The main goal of the project is to achieve a moderately high spectral resolutionwith R up to 5000 simultaneously in the 4300-6800 A visible spectral range on a single standard CCD, together with an increased throughput. The experimental study consisted of (1) resolution and image quality tests performed using the solar spectrum; and (2) a total throughput test performed for a number of wavelengths using a calibrated lab monochromator. The measu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.06176","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1804.06176","created_at":"2026-05-18T00:15:36.286163+00:00"},{"alias_kind":"arxiv_version","alias_value":"1804.06176v1","created_at":"2026-05-18T00:15:36.286163+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.06176","created_at":"2026-05-18T00:15:36.286163+00:00"},{"alias_kind":"pith_short_12","alias_value":"ORYISK4ZGLOC","created_at":"2026-05-18T12:32:43.782077+00:00"},{"alias_kind":"pith_short_16","alias_value":"ORYISK4ZGLOCLJZ5","created_at":"2026-05-18T12:32:43.782077+00:00"},{"alias_kind":"pith_short_8","alias_value":"ORYISK4Z","created_at":"2026-05-18T12:32:43.782077+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR","json":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR.json","graph_json":"https://pith.science/api/pith-number/ORYISK4ZGLOCLJZ5GBYOABUZIR/graph.json","events_json":"https://pith.science/api/pith-number/ORYISK4ZGLOCLJZ5GBYOABUZIR/events.json","paper":"https://pith.science/paper/ORYISK4Z"},"agent_actions":{"view_html":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR","download_json":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR.json","view_paper":"https://pith.science/paper/ORYISK4Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1804.06176&json=true","fetch_graph":"https://pith.science/api/pith-number/ORYISK4ZGLOCLJZ5GBYOABUZIR/graph.json","fetch_events":"https://pith.science/api/pith-number/ORYISK4ZGLOCLJZ5GBYOABUZIR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR/action/storage_attestation","attest_author":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR/action/author_attestation","sign_citation":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR/action/citation_signature","submit_replication":"https://pith.science/pith/ORYISK4ZGLOCLJZ5GBYOABUZIR/action/replication_record"}},"created_at":"2026-05-18T00:15:36.286163+00:00","updated_at":"2026-05-18T00:15:36.286163+00:00"}