{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:M4JS5UQ6ONYLPRGJ2XS4XKGDJG","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"273135be650a95b90af352a230ee1462a6a8de5afb9d7a263deeb5a77d995dd9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-12T18:15:46Z","title_canon_sha256":"dd908a372a0ad0272760b66cfa1846d03346460c2b564f65d131e23f0255ebcd"},"schema_version":"1.0","source":{"id":"2505.07974","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.07974","created_at":"2026-07-05T11:59:14Z"},{"alias_kind":"arxiv_version","alias_value":"2505.07974v2","created_at":"2026-07-05T11:59:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.07974","created_at":"2026-07-05T11:59:14Z"},{"alias_kind":"pith_short_12","alias_value":"M4JS5UQ6ONYL","created_at":"2026-07-05T11:59:14Z"},{"alias_kind":"pith_short_16","alias_value":"M4JS5UQ6ONYLPRGJ","created_at":"2026-07-05T11:59:14Z"},{"alias_kind":"pith_short_8","alias_value":"M4JS5UQ6","created_at":"2026-07-05T11:59:14Z"}],"graph_snapshots":[{"event_id":"sha256:ab4a1cacf3f841b3eddf9790c38387826cf5f7181e17a7fc59358c8852096c7c","target":"graph","created_at":"2026-07-05T11:59:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2505.07974/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The one-dimensional power spectrum $P_{\\mathrm{1D}}$ of Ly$\\alpha$ forest offers rich insights into cosmological and astrophysical parameters, including constraints on the sum of neutrino masses, warm dark matter models, and the thermal state of the intergalactic medium. We present the measurement of $P_{\\mathrm{1D}}$ using the optimal quadratic maximum likelihood estimator applied to over 300,000 Ly$\\alpha$ quasars from Data Release 1 (DR1) of the Dark Energy Spectroscopic Instrument (DESI) survey. This sample represents the largest to date for $P_{\\mathrm{1D}}$ measurements and is larger tha","authors_text":"A. Bault, A. Brodzeller, A. Cuceu, A. de la Macorra, A. Dey, A. Font-Ribera, A. Kremin, A. Meisner, B. A. Weaver, B. Dey, C. Hahn, C. Ravoux, C. Saulder, D. Bianchi, D. Brooks, D. Kirkby, D. Schlegel, D. Sprayberry, E. Armengaud, E. Gazta\\~naga, E. Sanchez, F. Prada, G. Gutierrez, G. Niz, G. Rossi, G. Tarl\\'e, H. K. Herrera-Alcantar, H. Seo, H. Zou, I. P\\'erez-R\\`afols, J. Aguilar, J. Chaves-Montero, J. E. Forero-Romero, J. Guy, Ji-Jia Tang, J. M. Le Goff, J. Yu, K. Honscheid, L. Le Guillou, Matthew M. Pieri, M. E. Levi, M. Ishak, M. Landriau, M. Manera, M. Schubnell, M. Siudek, M. Walther, N. G. Kara\\c{c}ayl{\\i}, N. Palanque-Delabrouille, P. Doel, P. Martini, P. Montero-Camacho, R. Kehoe, R. Miquel, R. Zhou, S. Ahlen, S. Bailey, S. Ferraro, S. Gontcho A Gontcho, S. Nadathur, T. Claybaugh, T. Tan, W. J. Percival, Z. Pan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-12T18:15:46Z","title":"DESI DR1 Ly$\\alpha$ 1D power spectrum: The optimal estimator measurement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.07974","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:274eb283cfa71b925b7236be224370b06ee21ed6c97b3d23c733f3d34fa7aea1","target":"record","created_at":"2026-07-05T11:59:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"273135be650a95b90af352a230ee1462a6a8de5afb9d7a263deeb5a77d995dd9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-12T18:15:46Z","title_canon_sha256":"dd908a372a0ad0272760b66cfa1846d03346460c2b564f65d131e23f0255ebcd"},"schema_version":"1.0","source":{"id":"2505.07974","kind":"arxiv","version":2}},"canonical_sha256":"67132ed21e7370b7c4c9d5e5cba8c349bcd03b3329a9f8e56e43cd3c9e911dd6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"67132ed21e7370b7c4c9d5e5cba8c349bcd03b3329a9f8e56e43cd3c9e911dd6","first_computed_at":"2026-07-05T11:59:14.443029Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:59:14.443029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"shEmvf50/Mj37gyCriCOuVTl7lckJMODQctqxDF5iPW2/z93dZ+QvIDRbD/xX4vXlH8fdpKiz7DlrFykdLcqDw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:59:14.443545Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.07974","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:274eb283cfa71b925b7236be224370b06ee21ed6c97b3d23c733f3d34fa7aea1","sha256:ab4a1cacf3f841b3eddf9790c38387826cf5f7181e17a7fc59358c8852096c7c"],"state_sha256":"01d43764f4fb93c0bdeca91e4b5f5b45cf3ee16ded23c47d2b1c033b75ba001c"}