{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:OV7V73HOIXR2S7HLWHASOO2UNB","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":"948e0f96da6246262ccb35be058cd65abd35350e8680c30e75230f9c513f3499","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-28T20:00:52Z","title_canon_sha256":"480bec5e01537ca0784001e5d1321fa92efa77f0650add26d322e4eb15acc2cc"},"schema_version":"1.0","source":{"id":"1211.6721","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.6721","created_at":"2026-05-18T03:30:41Z"},{"alias_kind":"arxiv_version","alias_value":"1211.6721v3","created_at":"2026-05-18T03:30:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.6721","created_at":"2026-05-18T03:30:41Z"},{"alias_kind":"pith_short_12","alias_value":"OV7V73HOIXR2","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"OV7V73HOIXR2S7HL","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"OV7V73HO","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:7103d63a77f556fa0ffe4b65600d6992d55d4d8c9c4ce3b9479181026ecb3b4d","target":"graph","created_at":"2026-05-18T03:30:41Z","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":"Recent observations of the cosmic microwave background (CMB) at smallest angular scales and updated abundances of primordial elements, indicate an increase of the energy density and the helium-4 abundance with respect to standard big bang nucleosynthesis with three neutrino flavour. This calls for a reanalysis of the observational bounds on neutrino chemical potentials, which encode the number asymmetry between cosmic neutrinos and anti-neutrinos and thus measures the lepton asymmetry of the Universe. We compare recent data with a big bang nucleosynthesis code, assuming neutrino flavour equili","authors_text":"Dominik J. Schwarz, Maik Stuke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-28T20:00:52Z","title":"Does the CMB prefer a leptonic Universe?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.6721","kind":"arxiv","version":3},"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":"sha256:8de6a0ab357ba33e7e262f93888b82d19bb25a61ea8b58a078187bd96a3ca357","target":"record","created_at":"2026-05-18T03:30:41Z","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":"948e0f96da6246262ccb35be058cd65abd35350e8680c30e75230f9c513f3499","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-28T20:00:52Z","title_canon_sha256":"480bec5e01537ca0784001e5d1321fa92efa77f0650add26d322e4eb15acc2cc"},"schema_version":"1.0","source":{"id":"1211.6721","kind":"arxiv","version":3}},"canonical_sha256":"757f5fecee45e3a97cebb1c1273b5468598f7d1596ea0237dfd7c834f1902b04","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"757f5fecee45e3a97cebb1c1273b5468598f7d1596ea0237dfd7c834f1902b04","first_computed_at":"2026-05-18T03:30:41.340272Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:30:41.340272Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ou5hr6iKMBMQJW3+UVntJEpox9SqauDDU9T9poUG6iwqRAS/2XS8lK1q7ATp9QukTbMhwcy0arerIhJ8usHpCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:30:41.340951Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.6721","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8de6a0ab357ba33e7e262f93888b82d19bb25a61ea8b58a078187bd96a3ca357","sha256:7103d63a77f556fa0ffe4b65600d6992d55d4d8c9c4ce3b9479181026ecb3b4d"],"state_sha256":"027ec43b68f1434421e9c6801f82649ed0f9da9afccf79a6d14d0a2fef2d9f08"}