{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:TBSSPDAKEDJGHEHTXLMTUO76SJ","short_pith_number":"pith:TBSSPDAK","schema_version":"1.0","canonical_sha256":"9865278c0a20d26390f3bad93a3bfe92495f5501e47e2b6390bfb58cc4712c20","source":{"kind":"arxiv","id":"1808.07939","version":2},"attestation_state":"computed","paper":{"title":"BTFI2: a simple, light and compact Fabry-Perot instrument for the SOAR telescope","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Brian Chinn, Bruno Correa Quint, Claudia Mendes de Oliveira, Daniel Moser Faes, Denis Andrade, Philippe Amram, William Schoenell","submitted_at":"2018-08-23T20:35:43Z","abstract_excerpt":"We present the concept of a new Fabry-Perot instrument called BTFI-2, which is based on the design of another Brazilian instrument for the SOAR Telescope, the Brazilian Tunable Filter Imager (BTFI). BTFI-2 is designed to be mounted on the visitor port of the SOAR Adaptive Module (SAM) facility, on the SOAR telescope, at Cerro Pach\\'on, Chile. This optical Fabry-Perot instrument will have a field of view of 3 x 3 arcmin, with 0.12 arcsec per pixel and spectral resolutions of 4500 and 12000, at H-alpha, dictated by the two ICOS Fabry-Perot devices available. The instrument will be unique for the"},"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":"1808.07939","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-08-23T20:35:43Z","cross_cats_sorted":[],"title_canon_sha256":"c4cae94d5a2fbd5ed95a772259a1e6a67adbfffe864fb222a18fb2f5e9721973","abstract_canon_sha256":"b2a5cd5a9e2a9e50c849a88e781280f5acfe54f2c9ed79c3a9c427c55c91760c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:16.865867Z","signature_b64":"si4WerjuljRJ6+pPxR8DqosrMLjj0QdnQbZRgv2Vflv3hVccaQmVZLVGpw56temhCXCY9KSs+Z9YRFrt1CC0Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9865278c0a20d26390f3bad93a3bfe92495f5501e47e2b6390bfb58cc4712c20","last_reissued_at":"2026-05-18T00:07:16.864938Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:16.864938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"BTFI2: a simple, light and compact Fabry-Perot instrument for the SOAR telescope","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Brian Chinn, Bruno Correa Quint, Claudia Mendes de Oliveira, Daniel Moser Faes, Denis Andrade, Philippe Amram, William Schoenell","submitted_at":"2018-08-23T20:35:43Z","abstract_excerpt":"We present the concept of a new Fabry-Perot instrument called BTFI-2, which is based on the design of another Brazilian instrument for the SOAR Telescope, the Brazilian Tunable Filter Imager (BTFI). BTFI-2 is designed to be mounted on the visitor port of the SOAR Adaptive Module (SAM) facility, on the SOAR telescope, at Cerro Pach\\'on, Chile. This optical Fabry-Perot instrument will have a field of view of 3 x 3 arcmin, with 0.12 arcsec per pixel and spectral resolutions of 4500 and 12000, at H-alpha, dictated by the two ICOS Fabry-Perot devices available. The instrument will be unique for the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07939","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1808.07939","created_at":"2026-05-18T00:07:16.865088+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.07939v2","created_at":"2026-05-18T00:07:16.865088+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07939","created_at":"2026-05-18T00:07:16.865088+00:00"},{"alias_kind":"pith_short_12","alias_value":"TBSSPDAKEDJG","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_16","alias_value":"TBSSPDAKEDJGHEHT","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_8","alias_value":"TBSSPDAK","created_at":"2026-05-18T12:32:53.628368+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/TBSSPDAKEDJGHEHTXLMTUO76SJ","json":"https://pith.science/pith/TBSSPDAKEDJGHEHTXLMTUO76SJ.json","graph_json":"https://pith.science/api/pith-number/TBSSPDAKEDJGHEHTXLMTUO76SJ/graph.json","events_json":"https://pith.science/api/pith-number/TBSSPDAKEDJGHEHTXLMTUO76SJ/events.json","paper":"https://pith.science/paper/TBSSPDAK"},"agent_actions":{"view_html":"https://pith.science/pith/TBSSPDAKEDJGHEHTXLMTUO76SJ","download_json":"https://pith.science/pith/TBSSPDAKEDJGHEHTXLMTUO76SJ.json","view_paper":"https://pith.science/paper/TBSSPDAK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.07939&json=true","fetch_graph":"https://pith.science/api/pith-number/TBSSPDAKEDJGHEHTXLMTUO76SJ/graph.json","fetch_events":"https://pith.science/api/pith-number/TBSSPDAKEDJGHEHTXLMTUO76SJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TBSSPDAKEDJGHEHTXLMTUO76SJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TBSSPDAKEDJGHEHTXLMTUO76SJ/action/storage_attestation","attest_author":"https://pith.science/pith/TBSSPDAKEDJGHEHTXLMTUO76SJ/action/author_attestation","sign_citation":"https://pith.science/pith/TBSSPDAKEDJGHEHTXLMTUO76SJ/action/citation_signature","submit_replication":"https://pith.science/pith/TBSSPDAKEDJGHEHTXLMTUO76SJ/action/replication_record"}},"created_at":"2026-05-18T00:07:16.865088+00:00","updated_at":"2026-05-18T00:07:16.865088+00:00"}