{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:67KHHWYW6YS2LH6EC4EIEZ2JZA","short_pith_number":"pith:67KHHWYW","schema_version":"1.0","canonical_sha256":"f7d473db16f625a59fc41708826749c835a59bdb5e8ce3ff185f50cd89f08815","source":{"kind":"arxiv","id":"2307.01860","version":2},"attestation_state":"computed","paper":{"title":"CMB Polarisation Signal Demodulation with a Rotating Half-Wave Plate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Daniel B. Thomas, Mariam Rashid, Michael L. Brown","submitted_at":"2023-07-04T18:15:40Z","abstract_excerpt":"Several forthcoming Cosmic Microwave Background polarisation experiments will employ a Continuously Rotating Half-Wave Plate (CRHWP), the primary purpose of which is to mitigate instrumental systematic effects. The use of a CRHWP necessitates demodulating the time-ordered data during the early stages of data processing. The standard approach is to ``lock in'' on the polarisation signal using the known polarisation modulation frequency and use Fourier techniques to filter out the remaining unwanted components. However, an alternative, less well-studied option is to incorporate the demodulation "},"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":"2307.01860","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-07-04T18:15:40Z","cross_cats_sorted":[],"title_canon_sha256":"0705d0914fd0e0f96668153d2e946787fb21fc471e0ee21adf8fd3721cf1ee72","abstract_canon_sha256":"a184f24ca5316e365e0971550e4918dabcfd4c61d50d88eb9cb389611405b1bd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:50:29.519872Z","signature_b64":"nLBNi3MtbEBtTBE7SX2Ic1F09EzBKL5iHj1YcBe4vi7zxH5o2zgMlAuHs3Rps5H03/HrUtXUcmL5rzUf9EC0Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7d473db16f625a59fc41708826749c835a59bdb5e8ce3ff185f50cd89f08815","last_reissued_at":"2026-07-05T09:50:29.519188Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:50:29.519188Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"CMB Polarisation Signal Demodulation with a Rotating Half-Wave Plate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Daniel B. Thomas, Mariam Rashid, Michael L. Brown","submitted_at":"2023-07-04T18:15:40Z","abstract_excerpt":"Several forthcoming Cosmic Microwave Background polarisation experiments will employ a Continuously Rotating Half-Wave Plate (CRHWP), the primary purpose of which is to mitigate instrumental systematic effects. The use of a CRHWP necessitates demodulating the time-ordered data during the early stages of data processing. The standard approach is to ``lock in'' on the polarisation signal using the known polarisation modulation frequency and use Fourier techniques to filter out the remaining unwanted components. However, an alternative, less well-studied option is to incorporate the demodulation "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.01860","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2307.01860/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2307.01860","created_at":"2026-07-05T09:50:29.519272+00:00"},{"alias_kind":"arxiv_version","alias_value":"2307.01860v2","created_at":"2026-07-05T09:50:29.519272+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.01860","created_at":"2026-07-05T09:50:29.519272+00:00"},{"alias_kind":"pith_short_12","alias_value":"67KHHWYW6YS2","created_at":"2026-07-05T09:50:29.519272+00:00"},{"alias_kind":"pith_short_16","alias_value":"67KHHWYW6YS2LH6E","created_at":"2026-07-05T09:50:29.519272+00:00"},{"alias_kind":"pith_short_8","alias_value":"67KHHWYW","created_at":"2026-07-05T09:50:29.519272+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2502.00946","citing_title":"The Simons Observatory: Validation of reconstructed power spectra from simulated filtered maps for the Small Aperture Telescope survey","ref_index":42,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA","json":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA.json","graph_json":"https://pith.science/api/pith-number/67KHHWYW6YS2LH6EC4EIEZ2JZA/graph.json","events_json":"https://pith.science/api/pith-number/67KHHWYW6YS2LH6EC4EIEZ2JZA/events.json","paper":"https://pith.science/paper/67KHHWYW"},"agent_actions":{"view_html":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA","download_json":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA.json","view_paper":"https://pith.science/paper/67KHHWYW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2307.01860&json=true","fetch_graph":"https://pith.science/api/pith-number/67KHHWYW6YS2LH6EC4EIEZ2JZA/graph.json","fetch_events":"https://pith.science/api/pith-number/67KHHWYW6YS2LH6EC4EIEZ2JZA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA/action/storage_attestation","attest_author":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA/action/author_attestation","sign_citation":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA/action/citation_signature","submit_replication":"https://pith.science/pith/67KHHWYW6YS2LH6EC4EIEZ2JZA/action/replication_record"}},"created_at":"2026-07-05T09:50:29.519272+00:00","updated_at":"2026-07-05T09:50:29.519272+00:00"}