{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:GPPBZFTX73WFP7FLF67B74ZINK","short_pith_number":"pith:GPPBZFTX","schema_version":"1.0","canonical_sha256":"33de1c9677feec57fcab2fbe1ff3286a843238412b77bd98546f29c53a8eb6ee","source":{"kind":"arxiv","id":"2008.06421","version":1},"attestation_state":"computed","paper":{"title":"Optimal 1D Ly-$\\alpha$ Forest Power Spectrum Estimation I: DESI-Lite Spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andreu Font-Ribera, Naim G\\\"oksel Kara\\c{c}ayl{\\i}, Nikhil Padmanabhan","submitted_at":"2020-08-14T15:38:35Z","abstract_excerpt":"The 1D Ly-$\\alpha$ forest flux power spectrum $P_{\\mathrm{1D}}$ is sensitive to scales smaller than a typical galaxy survey, and hence ties to the intergalactic medium's thermal state, suppression from neutrino masses and new dark matter models. It has emerged as a competitive framework to study new physics, but also has come with various challenges and systematic errors in analysis. In this work, we revisit the optimal quadratic estimator for $P_{\\mathrm{1D}}$, which is robust against the relevant problems such as pixel masking, time evolution within spectrum and quasar continuum errors. We f"},"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":"2008.06421","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-14T15:38:35Z","cross_cats_sorted":[],"title_canon_sha256":"f0094e02a51aeeede0461fe447adcdf2fff2ae599402583bbe26d7020ce1fb71","abstract_canon_sha256":"c7fd3977782f7a929f178980444f3f197829598b5f218cb6aa981707bccb44d8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:27:09.294397Z","signature_b64":"IkSUDt2xd+IKnaq+U/0xkMgPN5QCvXkoybtbf5GQ7ZARcaDamLD2cOTIv+NH7oQhCHU/FmWHYhrxAf3nP6/mDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33de1c9677feec57fcab2fbe1ff3286a843238412b77bd98546f29c53a8eb6ee","last_reissued_at":"2026-07-05T01:27:09.294015Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:27:09.294015Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optimal 1D Ly-$\\alpha$ Forest Power Spectrum Estimation I: DESI-Lite Spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andreu Font-Ribera, Naim G\\\"oksel Kara\\c{c}ayl{\\i}, Nikhil Padmanabhan","submitted_at":"2020-08-14T15:38:35Z","abstract_excerpt":"The 1D Ly-$\\alpha$ forest flux power spectrum $P_{\\mathrm{1D}}$ is sensitive to scales smaller than a typical galaxy survey, and hence ties to the intergalactic medium's thermal state, suppression from neutrino masses and new dark matter models. It has emerged as a competitive framework to study new physics, but also has come with various challenges and systematic errors in analysis. In this work, we revisit the optimal quadratic estimator for $P_{\\mathrm{1D}}$, which is robust against the relevant problems such as pixel masking, time evolution within spectrum and quasar continuum errors. We f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.06421","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2008.06421/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":"2008.06421","created_at":"2026-07-05T01:27:09.294077+00:00"},{"alias_kind":"arxiv_version","alias_value":"2008.06421v1","created_at":"2026-07-05T01:27:09.294077+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.06421","created_at":"2026-07-05T01:27:09.294077+00:00"},{"alias_kind":"pith_short_12","alias_value":"GPPBZFTX73WF","created_at":"2026-07-05T01:27:09.294077+00:00"},{"alias_kind":"pith_short_16","alias_value":"GPPBZFTX73WFP7FL","created_at":"2026-07-05T01:27:09.294077+00:00"},{"alias_kind":"pith_short_8","alias_value":"GPPBZFTX","created_at":"2026-07-05T01:27:09.294077+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/GPPBZFTX73WFP7FLF67B74ZINK","json":"https://pith.science/pith/GPPBZFTX73WFP7FLF67B74ZINK.json","graph_json":"https://pith.science/api/pith-number/GPPBZFTX73WFP7FLF67B74ZINK/graph.json","events_json":"https://pith.science/api/pith-number/GPPBZFTX73WFP7FLF67B74ZINK/events.json","paper":"https://pith.science/paper/GPPBZFTX"},"agent_actions":{"view_html":"https://pith.science/pith/GPPBZFTX73WFP7FLF67B74ZINK","download_json":"https://pith.science/pith/GPPBZFTX73WFP7FLF67B74ZINK.json","view_paper":"https://pith.science/paper/GPPBZFTX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2008.06421&json=true","fetch_graph":"https://pith.science/api/pith-number/GPPBZFTX73WFP7FLF67B74ZINK/graph.json","fetch_events":"https://pith.science/api/pith-number/GPPBZFTX73WFP7FLF67B74ZINK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GPPBZFTX73WFP7FLF67B74ZINK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GPPBZFTX73WFP7FLF67B74ZINK/action/storage_attestation","attest_author":"https://pith.science/pith/GPPBZFTX73WFP7FLF67B74ZINK/action/author_attestation","sign_citation":"https://pith.science/pith/GPPBZFTX73WFP7FLF67B74ZINK/action/citation_signature","submit_replication":"https://pith.science/pith/GPPBZFTX73WFP7FLF67B74ZINK/action/replication_record"}},"created_at":"2026-07-05T01:27:09.294077+00:00","updated_at":"2026-07-05T01:27:09.294077+00:00"}