{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:TQQJNLZE3I3NFGUXHBYWEN37BD","short_pith_number":"pith:TQQJNLZE","schema_version":"1.0","canonical_sha256":"9c2096af24da36d29a97387162377f08fcdc7827756a095231b28da93e90a72a","source":{"kind":"arxiv","id":"1607.07399","version":1},"attestation_state":"computed","paper":{"title":"Design and development of an ambient-temperature continuously-rotating achromatic half-wave plate for CMB polarization modulation on the POLARBEAR-2 experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"Adrian T. Lee, Akito Kusaka, Aritoki Suzuki, Brian Keating, Charles A. Hill, Frederick Matsuda, Masashi Hazumi, Neil Goeckner-Wald, Richard Plambeck, Satoru Takakura, Shawn Beckman, Yuji Chinone","submitted_at":"2016-07-21T07:09:42Z","abstract_excerpt":"We describe the development of an ambient-temperature continuously-rotating half-wave plate (HWP) for study of the Cosmic Microwave Background (CMB) polarization by the POLARBEAR-2 (PB2) experiment. Rapid polarization modulation suppresses 1/f noise due to unpolarized atmospheric turbulence and improves sensitivity to degree-angular-scale CMB fluctuations where the inflationary gravitational wave signal is thought to exist. A HWP modulator rotates the input polarization signal and therefore allows a single polarimeter to measure both linear polarization states, eliminating systematic errors as"},"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":"1607.07399","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-07-21T07:09:42Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"87be78165f36ce4afe4e83265765ae67a1a2d1a8a430d11c8b6d65ad2a70fe0a","abstract_canon_sha256":"a775c0f480ca8de6afe156778d32532085fa6151c5e6016e599bef940e50a77a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:34.012837Z","signature_b64":"fyJwq2CgRV6HpVDwFKplRmJmfwqiHi3XjeFaui9ZLT4fJKzQXcV7eslc4Vc78IQpGr4NeQGgRLwV9whGPmh4AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9c2096af24da36d29a97387162377f08fcdc7827756a095231b28da93e90a72a","last_reissued_at":"2026-05-18T01:10:34.012212Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:34.012212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Design and development of an ambient-temperature continuously-rotating achromatic half-wave plate for CMB polarization modulation on the POLARBEAR-2 experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"Adrian T. Lee, Akito Kusaka, Aritoki Suzuki, Brian Keating, Charles A. Hill, Frederick Matsuda, Masashi Hazumi, Neil Goeckner-Wald, Richard Plambeck, Satoru Takakura, Shawn Beckman, Yuji Chinone","submitted_at":"2016-07-21T07:09:42Z","abstract_excerpt":"We describe the development of an ambient-temperature continuously-rotating half-wave plate (HWP) for study of the Cosmic Microwave Background (CMB) polarization by the POLARBEAR-2 (PB2) experiment. Rapid polarization modulation suppresses 1/f noise due to unpolarized atmospheric turbulence and improves sensitivity to degree-angular-scale CMB fluctuations where the inflationary gravitational wave signal is thought to exist. A HWP modulator rotates the input polarization signal and therefore allows a single polarimeter to measure both linear polarization states, eliminating systematic errors as"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.07399","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":"1607.07399","created_at":"2026-05-18T01:10:34.012305+00:00"},{"alias_kind":"arxiv_version","alias_value":"1607.07399v1","created_at":"2026-05-18T01:10:34.012305+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.07399","created_at":"2026-05-18T01:10:34.012305+00:00"},{"alias_kind":"pith_short_12","alias_value":"TQQJNLZE3I3N","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_16","alias_value":"TQQJNLZE3I3NFGUX","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_8","alias_value":"TQQJNLZE","created_at":"2026-05-18T12:30:46.583412+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/TQQJNLZE3I3NFGUXHBYWEN37BD","json":"https://pith.science/pith/TQQJNLZE3I3NFGUXHBYWEN37BD.json","graph_json":"https://pith.science/api/pith-number/TQQJNLZE3I3NFGUXHBYWEN37BD/graph.json","events_json":"https://pith.science/api/pith-number/TQQJNLZE3I3NFGUXHBYWEN37BD/events.json","paper":"https://pith.science/paper/TQQJNLZE"},"agent_actions":{"view_html":"https://pith.science/pith/TQQJNLZE3I3NFGUXHBYWEN37BD","download_json":"https://pith.science/pith/TQQJNLZE3I3NFGUXHBYWEN37BD.json","view_paper":"https://pith.science/paper/TQQJNLZE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1607.07399&json=true","fetch_graph":"https://pith.science/api/pith-number/TQQJNLZE3I3NFGUXHBYWEN37BD/graph.json","fetch_events":"https://pith.science/api/pith-number/TQQJNLZE3I3NFGUXHBYWEN37BD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TQQJNLZE3I3NFGUXHBYWEN37BD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TQQJNLZE3I3NFGUXHBYWEN37BD/action/storage_attestation","attest_author":"https://pith.science/pith/TQQJNLZE3I3NFGUXHBYWEN37BD/action/author_attestation","sign_citation":"https://pith.science/pith/TQQJNLZE3I3NFGUXHBYWEN37BD/action/citation_signature","submit_replication":"https://pith.science/pith/TQQJNLZE3I3NFGUXHBYWEN37BD/action/replication_record"}},"created_at":"2026-05-18T01:10:34.012305+00:00","updated_at":"2026-05-18T01:10:34.012305+00:00"}