{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:YB4OK2TGHZ3SBHSHNJBPYQGV27","short_pith_number":"pith:YB4OK2TG","schema_version":"1.0","canonical_sha256":"c078e56a663e77209e476a42fc40d5d7efcb5ff7bc21330b7816276ecec04675","source":{"kind":"arxiv","id":"1302.5720","version":1},"attestation_state":"computed","paper":{"title":"DECal: A Spectrophotometric Calibration System For DECam","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Brannon Veal, D. L. DePoy, Emily C. Martin, Jason Wise, Jean-Philippe Rheault, J. L. Marshall, Jr., Patrick Williams, Richard Allen, Steven Villanueva, Travis Prochaska, Tyler W. Behm","submitted_at":"2013-02-22T21:47:54Z","abstract_excerpt":"DECal is a new calibration system for the CTIO 4 m Blanco telescope. It is currently being installed as part of the Dark Energy Survey and will provide both broadband flat fields and narrowband (about 1 nm bandwidth) spectrophotometric calibration for the new Dark Energy Camera (DECam). Both of these systems share a new Lambertian flat field screen. The broadband flat field system uses LEDs to illuminate each photometric filter. The spectrophotometric calibration system consists of a monochromator-based tunable light source that is projected onto the flat field screen using a custom line-to-sp"},"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":"1302.5720","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-02-22T21:47:54Z","cross_cats_sorted":[],"title_canon_sha256":"6bfd87f1570620f3210a937ca4e0818323154fb6fb21b1d1a39d7fc1e78f10f7","abstract_canon_sha256":"6abae5440fca3ebaeb3c67b5d2251779145e32fd8256c661c3adf0e69b927646"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:32:44.097548Z","signature_b64":"DxrMHr5eFSjIcH8TRZ3Vs7AByU++jBblVwb3VrP8e8BFfidcKxDDtsfo0O2FRcMq8MeOFF94UmCm72M+l/ksBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c078e56a663e77209e476a42fc40d5d7efcb5ff7bc21330b7816276ecec04675","last_reissued_at":"2026-05-18T03:32:44.096771Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:32:44.096771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"DECal: A Spectrophotometric Calibration System For DECam","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Brannon Veal, D. L. DePoy, Emily C. Martin, Jason Wise, Jean-Philippe Rheault, J. L. Marshall, Jr., Patrick Williams, Richard Allen, Steven Villanueva, Travis Prochaska, Tyler W. Behm","submitted_at":"2013-02-22T21:47:54Z","abstract_excerpt":"DECal is a new calibration system for the CTIO 4 m Blanco telescope. It is currently being installed as part of the Dark Energy Survey and will provide both broadband flat fields and narrowband (about 1 nm bandwidth) spectrophotometric calibration for the new Dark Energy Camera (DECam). Both of these systems share a new Lambertian flat field screen. The broadband flat field system uses LEDs to illuminate each photometric filter. The spectrophotometric calibration system consists of a monochromator-based tunable light source that is projected onto the flat field screen using a custom line-to-sp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.5720","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":"1302.5720","created_at":"2026-05-18T03:32:44.096887+00:00"},{"alias_kind":"arxiv_version","alias_value":"1302.5720v1","created_at":"2026-05-18T03:32:44.096887+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.5720","created_at":"2026-05-18T03:32:44.096887+00:00"},{"alias_kind":"pith_short_12","alias_value":"YB4OK2TGHZ3S","created_at":"2026-05-18T12:28:06.772260+00:00"},{"alias_kind":"pith_short_16","alias_value":"YB4OK2TGHZ3SBHSH","created_at":"2026-05-18T12:28:06.772260+00:00"},{"alias_kind":"pith_short_8","alias_value":"YB4OK2TG","created_at":"2026-05-18T12:28:06.772260+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2311.12098","citing_title":"Union Through UNITY: Cosmology with 2,000 SNe Using a Unified Bayesian Framework","ref_index":171,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27","json":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27.json","graph_json":"https://pith.science/api/pith-number/YB4OK2TGHZ3SBHSHNJBPYQGV27/graph.json","events_json":"https://pith.science/api/pith-number/YB4OK2TGHZ3SBHSHNJBPYQGV27/events.json","paper":"https://pith.science/paper/YB4OK2TG"},"agent_actions":{"view_html":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27","download_json":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27.json","view_paper":"https://pith.science/paper/YB4OK2TG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1302.5720&json=true","fetch_graph":"https://pith.science/api/pith-number/YB4OK2TGHZ3SBHSHNJBPYQGV27/graph.json","fetch_events":"https://pith.science/api/pith-number/YB4OK2TGHZ3SBHSHNJBPYQGV27/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27/action/storage_attestation","attest_author":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27/action/author_attestation","sign_citation":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27/action/citation_signature","submit_replication":"https://pith.science/pith/YB4OK2TGHZ3SBHSHNJBPYQGV27/action/replication_record"}},"created_at":"2026-05-18T03:32:44.096887+00:00","updated_at":"2026-05-18T03:32:44.096887+00:00"}