{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:DTON4E4RP6H4BVCUTUMYA4OKRK","short_pith_number":"pith:DTON4E4R","schema_version":"1.0","canonical_sha256":"1cdcde13917f8fc0d4549d198071ca8a9d1f5e384ae021591eeea996a416faad","source":{"kind":"arxiv","id":"1502.00596","version":2},"attestation_state":"computed","paper":{"title":"BICEP2/Keck Array IV: Optical Characterization and Performance of the BICEP2 and Keck Array Experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"A. C. Weber, A. D. Turner, A. G. Vieregg, A. Orlando, B. G. Keating, C. A. Bischoff, C. B. Netterfield, C. D. Dowell, C. D. Sheehy, C. L. Kuo, C. L. Wong, C. Pryke, D. Barkats, E. Bullock, E. M. Leitch, G. C. Hilton, G. P. Teply, H. Hui, H. T. Nguyen, I. Buder, J. A. Brevik, J. E. Tolan, J. H. Kang, J. J. Bock, J. M. Kovac, J. P. Filippini, J. P. Kaufman, K. D. Irwin, Keck Array Collaborations: P. A. R. Ade, K. G. Megerian, K. J. Bradford, K. S. Karkare, K. Thompson, K. W. Yoon, L. Duband, M. Halpern, M. Hasselfield, M. Lueker, R. O'Brient, R. Schwarz, R. V. Sudiwala, R. W. Aikin, R. W. Ogburn IV, S. A. Kernasovskiy, S. Fliescher, S. J. Benton, S. Kefeli, S. R. Golwala, S. R. Hildebrandt, S. Richter, The BICEP2, Z. K. Staniszewski","submitted_at":"2015-02-02T19:58:59Z","abstract_excerpt":"BICEP2 and the Keck Array are polarization-sensitive microwave telescopes that observe the cosmic microwave background (CMB) from the South Pole at degree angular scales in search of a signature of inflation imprinted as B-mode polarization in the CMB. BICEP2 was deployed in late 2009, observed for three years until the end of 2012 at 150 GHz with 512 antenna-coupled transition edge sensor bolometers, and has reported a detection of B-mode polarization on degree angular scales. The Keck Array was first deployed in late 2010 and will observe through 2016 with five receivers at several frequenci"},"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":"1502.00596","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-02-02T19:58:59Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"3d3ef3efa82de5fb84444f5f1d258b0708a929374dbde441c526eeb54050c0c8","abstract_canon_sha256":"37e6a83f1d9fbcb0f1167b088e084c69e1c9eb29b85da3a4aeaa387fbeac0e44"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:46.563787Z","signature_b64":"wx/GYt4j2WYP8klJKV0XW4fGVnEmJpNQwGVJ1aZmM5sOg155vUT1xXXZU0/PdgPZBPglt+HBlVZND2qlDzrqCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1cdcde13917f8fc0d4549d198071ca8a9d1f5e384ae021591eeea996a416faad","last_reissued_at":"2026-05-18T01:29:46.563045Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:46.563045Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"BICEP2/Keck Array IV: Optical Characterization and Performance of the BICEP2 and Keck Array Experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"A. C. Weber, A. D. Turner, A. G. Vieregg, A. Orlando, B. G. Keating, C. A. Bischoff, C. B. Netterfield, C. D. Dowell, C. D. Sheehy, C. L. Kuo, C. L. Wong, C. Pryke, D. Barkats, E. Bullock, E. M. Leitch, G. C. Hilton, G. P. Teply, H. Hui, H. T. Nguyen, I. Buder, J. A. Brevik, J. E. Tolan, J. H. Kang, J. J. Bock, J. M. Kovac, J. P. Filippini, J. P. Kaufman, K. D. Irwin, Keck Array Collaborations: P. A. R. Ade, K. G. Megerian, K. J. Bradford, K. S. Karkare, K. Thompson, K. W. Yoon, L. Duband, M. Halpern, M. Hasselfield, M. Lueker, R. O'Brient, R. Schwarz, R. V. Sudiwala, R. W. Aikin, R. W. Ogburn IV, S. A. Kernasovskiy, S. Fliescher, S. J. Benton, S. Kefeli, S. R. Golwala, S. R. Hildebrandt, S. Richter, The BICEP2, Z. K. Staniszewski","submitted_at":"2015-02-02T19:58:59Z","abstract_excerpt":"BICEP2 and the Keck Array are polarization-sensitive microwave telescopes that observe the cosmic microwave background (CMB) from the South Pole at degree angular scales in search of a signature of inflation imprinted as B-mode polarization in the CMB. BICEP2 was deployed in late 2009, observed for three years until the end of 2012 at 150 GHz with 512 antenna-coupled transition edge sensor bolometers, and has reported a detection of B-mode polarization on degree angular scales. The Keck Array was first deployed in late 2010 and will observe through 2016 with five receivers at several frequenci"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00596","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":"1502.00596","created_at":"2026-05-18T01:29:46.563172+00:00"},{"alias_kind":"arxiv_version","alias_value":"1502.00596v2","created_at":"2026-05-18T01:29:46.563172+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00596","created_at":"2026-05-18T01:29:46.563172+00:00"},{"alias_kind":"pith_short_12","alias_value":"DTON4E4RP6H4","created_at":"2026-05-18T12:29:17.054201+00:00"},{"alias_kind":"pith_short_16","alias_value":"DTON4E4RP6H4BVCU","created_at":"2026-05-18T12:29:17.054201+00:00"},{"alias_kind":"pith_short_8","alias_value":"DTON4E4R","created_at":"2026-05-18T12:29:17.054201+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/DTON4E4RP6H4BVCUTUMYA4OKRK","json":"https://pith.science/pith/DTON4E4RP6H4BVCUTUMYA4OKRK.json","graph_json":"https://pith.science/api/pith-number/DTON4E4RP6H4BVCUTUMYA4OKRK/graph.json","events_json":"https://pith.science/api/pith-number/DTON4E4RP6H4BVCUTUMYA4OKRK/events.json","paper":"https://pith.science/paper/DTON4E4R"},"agent_actions":{"view_html":"https://pith.science/pith/DTON4E4RP6H4BVCUTUMYA4OKRK","download_json":"https://pith.science/pith/DTON4E4RP6H4BVCUTUMYA4OKRK.json","view_paper":"https://pith.science/paper/DTON4E4R","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1502.00596&json=true","fetch_graph":"https://pith.science/api/pith-number/DTON4E4RP6H4BVCUTUMYA4OKRK/graph.json","fetch_events":"https://pith.science/api/pith-number/DTON4E4RP6H4BVCUTUMYA4OKRK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DTON4E4RP6H4BVCUTUMYA4OKRK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DTON4E4RP6H4BVCUTUMYA4OKRK/action/storage_attestation","attest_author":"https://pith.science/pith/DTON4E4RP6H4BVCUTUMYA4OKRK/action/author_attestation","sign_citation":"https://pith.science/pith/DTON4E4RP6H4BVCUTUMYA4OKRK/action/citation_signature","submit_replication":"https://pith.science/pith/DTON4E4RP6H4BVCUTUMYA4OKRK/action/replication_record"}},"created_at":"2026-05-18T01:29:46.563172+00:00","updated_at":"2026-05-18T01:29:46.563172+00:00"}