{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:JHRZZGSTMDTMXSADJ6NDTGZBCJ","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":"0211966d730374aba57062a57e77217663f1fc1702685265326629c26a9e4ecb","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-22T15:31:16Z","title_canon_sha256":"bec208104afefd4ac27c9bf16b97aafdd4ad4bb41a567d4905e7e84711809fb2"},"schema_version":"1.0","source":{"id":"astro-ph/0105385","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0105385","created_at":"2026-07-04T16:23:25Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0105385v2","created_at":"2026-07-04T16:23:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0105385","created_at":"2026-07-04T16:23:25Z"},{"alias_kind":"pith_short_12","alias_value":"JHRZZGSTMDTM","created_at":"2026-07-04T16:23:25Z"},{"alias_kind":"pith_short_16","alias_value":"JHRZZGSTMDTMXSAD","created_at":"2026-07-04T16:23:25Z"},{"alias_kind":"pith_short_8","alias_value":"JHRZZGST","created_at":"2026-07-04T16:23:25Z"}],"graph_snapshots":[{"event_id":"sha256:bc7352aac960e99214bd8ecffa9ee16414354450076350049b3c8a0d3ceb60a4","target":"graph","created_at":"2026-07-04T16:23:25Z","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/astro-ph/0105385/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We perform a likelihood analysis of the recent results on the anisotropy of Cosmic Microwave Background Radiation from the BOOMERanG and DASI experiments to show that they single out an effective number of neutrinos in good agreement with standard Big Bang Nucleosynthesis. We also consider degenerate Big Bang Nucleosynthesis to provide new bounds on effective relativistic degrees of freedom $N_\\nu$ and, in particular, on neutrino chemical potential $\\xi_\\alpha$. When including Supernova Ia data we find, at $2\\sigma$, $N_\\nu \\leq 7$ and $-0.01 \\leq \\xi_e \\leq 0.22$, $|\\xi_{\\mu,\\tau}|\\leq 2.6$.","authors_text":"A. Melchiorri, G. Mangano, G. Miele, O. Pisanti, S. H. Hansen","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-05-22T15:31:16Z","title":"Constraining neutrino physics with BBN and CMBR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0105385","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":"sha256:58b3a52facec9511416ba78801ba182cfbbc06b02c29ec34a9b0e4c5faccf80e","target":"record","created_at":"2026-07-04T16:23:25Z","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":"0211966d730374aba57062a57e77217663f1fc1702685265326629c26a9e4ecb","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-05-22T15:31:16Z","title_canon_sha256":"bec208104afefd4ac27c9bf16b97aafdd4ad4bb41a567d4905e7e84711809fb2"},"schema_version":"1.0","source":{"id":"astro-ph/0105385","kind":"arxiv","version":2}},"canonical_sha256":"49e39c9a5360e6cbc8034f9a399b211259648991871757ff66698049fdcba099","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49e39c9a5360e6cbc8034f9a399b211259648991871757ff66698049fdcba099","first_computed_at":"2026-07-04T16:23:25.790119Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:23:25.790119Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rL0s4GMuHU9jo6lRNvox04dmVo7vVxDkHtgpVpgPhMCq7tNT5uuF0M0/Y84N1zoCppepnsny7OFfVehwS77RDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:23:25.790594Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0105385","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58b3a52facec9511416ba78801ba182cfbbc06b02c29ec34a9b0e4c5faccf80e","sha256:bc7352aac960e99214bd8ecffa9ee16414354450076350049b3c8a0d3ceb60a4"],"state_sha256":"621cdbdfb40fb67ac3d955c0794edcc0f1097c7db959fd9979ad65a078a713ff"}