{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:UIQYK3KR2IMCYNGG2KUWV7HBFD","short_pith_number":"pith:UIQYK3KR","schema_version":"1.0","canonical_sha256":"a221856d51d2182c34c6d2a96afce128e65b52a08c09573651eb3337f0d4e611","source":{"kind":"arxiv","id":"2502.20434","version":2},"attestation_state":"computed","paper":{"title":"General Constraints on Isocurvature from the CMB and Ly-$\\alpha$ Forest","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Matthew R. Buckley, Mitchell J. Weikert, Nicolas Fernandez, Peizhi Du","submitted_at":"2025-02-27T19:00:00Z","abstract_excerpt":"Current cosmological data are well-described by the Lambda-Cold Dark Matter ($\\Lambda$CDM) model, which assumes adiabatic initial conditions for the primordial density perturbations. This agreement between data and theory enables strong constraints on new physics that generates isocurvature perturbations. Existing constraints typically assume a simple power law form for the isocurvature power spectrum. However, many new physics scenarios -- such as cosmological phase transitions and gravitational particle production -- can deviate from this assumption. To derive general constraints which apply"},"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":"2502.20434","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-02-27T19:00:00Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"2bd91c607666667d0fcd2666dba589cb02e584c2e3f22154f92e46f759d53a51","abstract_canon_sha256":"39e21f6d7b820e1ed37f15611c12bd3af722db2e972222f6058bc38e1ff7a27d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:42:15.223026Z","signature_b64":"1j5G475LKZiK21EsVOdK4Y4H7UI7ECwxm7MOVinauzuT3E9QOqdWXROaXAx9y8ZV83obrSAZDPaGI4qt1Q4QBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a221856d51d2182c34c6d2a96afce128e65b52a08c09573651eb3337f0d4e611","last_reissued_at":"2026-07-05T10:42:15.222529Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:42:15.222529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"General Constraints on Isocurvature from the CMB and Ly-$\\alpha$ Forest","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Matthew R. Buckley, Mitchell J. Weikert, Nicolas Fernandez, Peizhi Du","submitted_at":"2025-02-27T19:00:00Z","abstract_excerpt":"Current cosmological data are well-described by the Lambda-Cold Dark Matter ($\\Lambda$CDM) model, which assumes adiabatic initial conditions for the primordial density perturbations. This agreement between data and theory enables strong constraints on new physics that generates isocurvature perturbations. Existing constraints typically assume a simple power law form for the isocurvature power spectrum. However, many new physics scenarios -- such as cosmological phase transitions and gravitational particle production -- can deviate from this assumption. To derive general constraints which apply"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.20434","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/2502.20434/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":"2502.20434","created_at":"2026-07-05T10:42:15.222590+00:00"},{"alias_kind":"arxiv_version","alias_value":"2502.20434v2","created_at":"2026-07-05T10:42:15.222590+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.20434","created_at":"2026-07-05T10:42:15.222590+00:00"},{"alias_kind":"pith_short_12","alias_value":"UIQYK3KR2IMC","created_at":"2026-07-05T10:42:15.222590+00:00"},{"alias_kind":"pith_short_16","alias_value":"UIQYK3KR2IMCYNGG","created_at":"2026-07-05T10:42:15.222590+00:00"},{"alias_kind":"pith_short_8","alias_value":"UIQYK3KR","created_at":"2026-07-05T10:42:15.222590+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":9,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.25014","citing_title":"Probing Confining Dark Sectors with Cosmological Perturbations","ref_index":98,"is_internal_anchor":false},{"citing_arxiv_id":"2606.17994","citing_title":"Constraints on the Sum of Neutrino Masses from ACT DR6 and DESI DR2 Considering Isocurvature Initial Conditions","ref_index":26,"is_internal_anchor":false},{"citing_arxiv_id":"2606.11312","citing_title":"CMB Constraints on Pre-Inflationary Axion Dark Matter Isocurvature","ref_index":18,"is_internal_anchor":false},{"citing_arxiv_id":"2510.15046","citing_title":"Multi-species Dark Matter with Warmth and Randomness","ref_index":17,"is_internal_anchor":false},{"citing_arxiv_id":"2510.17977","citing_title":"Growth of Structure in Multi-species Wave Dark Matter","ref_index":73,"is_internal_anchor":false},{"citing_arxiv_id":"2506.12131","citing_title":"Early Growth of Structure in Warm Wave Dark Matter","ref_index":43,"is_internal_anchor":false},{"citing_arxiv_id":"2512.08301","citing_title":"Isocurvature Induced Gravitational Waves at Pulsar Timing Arrays","ref_index":19,"is_internal_anchor":false},{"citing_arxiv_id":"2605.11079","citing_title":"New Isocurvature Constraints from JWST UV Luminosity Function","ref_index":58,"is_internal_anchor":false},{"citing_arxiv_id":"2604.15241","citing_title":"Echoes of Global Cosmic Strings","ref_index":49,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD","json":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD.json","graph_json":"https://pith.science/api/pith-number/UIQYK3KR2IMCYNGG2KUWV7HBFD/graph.json","events_json":"https://pith.science/api/pith-number/UIQYK3KR2IMCYNGG2KUWV7HBFD/events.json","paper":"https://pith.science/paper/UIQYK3KR"},"agent_actions":{"view_html":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD","download_json":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD.json","view_paper":"https://pith.science/paper/UIQYK3KR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2502.20434&json=true","fetch_graph":"https://pith.science/api/pith-number/UIQYK3KR2IMCYNGG2KUWV7HBFD/graph.json","fetch_events":"https://pith.science/api/pith-number/UIQYK3KR2IMCYNGG2KUWV7HBFD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD/action/storage_attestation","attest_author":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD/action/author_attestation","sign_citation":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD/action/citation_signature","submit_replication":"https://pith.science/pith/UIQYK3KR2IMCYNGG2KUWV7HBFD/action/replication_record"}},"created_at":"2026-07-05T10:42:15.222590+00:00","updated_at":"2026-07-05T10:42:15.222590+00:00"}