{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:RRBCHVKUBJES5TCQ3RDF7G56ZA","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":"a289253d7b5e873d7a5bd40fa97ffa82ac99248a92c967362749e2fa734b155b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-09-22T20:00:27Z","title_canon_sha256":"1e73923d6787bff7bd71a12eb51e6302db231128c22ec681338897d891b42d86"},"schema_version":"1.0","source":{"id":"1409.6321","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6321","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6321v2","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6321","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"pith_short_12","alias_value":"RRBCHVKUBJES","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"RRBCHVKUBJES5TCQ","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"RRBCHVKU","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:be3cfea752466ce32dbdd0a2136aec304afe54742ae86d3d4c32e951e5e449b1","target":"graph","created_at":"2026-05-18T02:31:29Z","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"},"paper":{"abstract_excerpt":"We present a comprehensive analysis of high resolution hydrodynamic simulations in terms of Lyman-alpha and Lyman-beta one dimensional flux power spectra ($P_{\\alpha\\alpha}$ and $P_{\\beta\\beta}$). In particular, we focus on the behaviour that the flux auto-power spectra and cross-power spectra ($P_{\\alpha\\beta}$) display when the intergalactic medium (IGM) thermal history is changed in a range of values that bracket a reference model, while cosmological parameters are kept fixed to best fit the cosmic microwave background data. We present empirical fits that describe at the sub-percent level t","authors_text":"Matteo Viel, Vid Ir\\v{s}i\\v{c}","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-09-22T20:00:27Z","title":"The Lyman-beta forest as a cosmic thermometer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6321","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":"sha256:7886f8cf4d52b39783504ec019263b3a776a45b6dbf5f9cb711e88d5d033d76e","target":"record","created_at":"2026-05-18T02:31:29Z","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":"a289253d7b5e873d7a5bd40fa97ffa82ac99248a92c967362749e2fa734b155b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-09-22T20:00:27Z","title_canon_sha256":"1e73923d6787bff7bd71a12eb51e6302db231128c22ec681338897d891b42d86"},"schema_version":"1.0","source":{"id":"1409.6321","kind":"arxiv","version":2}},"canonical_sha256":"8c4223d5540a492ecc50dc465f9bbec80e9894e2cffa77596c9f5baf72803707","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8c4223d5540a492ecc50dc465f9bbec80e9894e2cffa77596c9f5baf72803707","first_computed_at":"2026-05-18T02:31:29.806894Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:31:29.806894Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lNufZEM4FJxNibhwp5LeDKnOMbfdcrrSMdhqR4gPx1c+f1RGngpR3hyQYmessMI7DTD4R1W+S+CEI8BKDrKTAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:31:29.807354Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.6321","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7886f8cf4d52b39783504ec019263b3a776a45b6dbf5f9cb711e88d5d033d76e","sha256:be3cfea752466ce32dbdd0a2136aec304afe54742ae86d3d4c32e951e5e449b1"],"state_sha256":"da8f93a8f5b33261e72a453e3ea230f85e7390d30478b0caae0d73bbdf97fdbe"}