{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JKA7T5O33ER3MHSRESDSYNYB67","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":"d2ea7d819905f72afed5c8f2327d7417d0ee0fd5160ebab730e12e35f973889e","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2023-08-15T18:00:02Z","title_canon_sha256":"eadc9a6653762529f9bd2318066cc3961dbc128889a56e78e63a4f1be4027d18"},"schema_version":"1.0","source":{"id":"2308.07955","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.07955","created_at":"2026-07-05T08:13:08Z"},{"alias_kind":"arxiv_version","alias_value":"2308.07955v2","created_at":"2026-07-05T08:13:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.07955","created_at":"2026-07-05T08:13:08Z"},{"alias_kind":"pith_short_12","alias_value":"JKA7T5O33ER3","created_at":"2026-07-05T08:13:08Z"},{"alias_kind":"pith_short_16","alias_value":"JKA7T5O33ER3MHSR","created_at":"2026-07-05T08:13:08Z"},{"alias_kind":"pith_short_8","alias_value":"JKA7T5O3","created_at":"2026-07-05T08:13:08Z"}],"graph_snapshots":[{"event_id":"sha256:d6c397af3b1ce1300d7b201f8b69942b1a3171070449c96740eac94880017fa7","target":"graph","created_at":"2026-07-05T08:13:08Z","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/2308.07955/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We calculate the effects of a light, very weakly-coupled boson $X$ arising from a spontaneously broken $U(1)_{B-L}$ symmetry on $\\Delta N_{\\rm eff}$ as measured by the CMB and $Y_p$ from BBN. Our focus is the mass range $1 \\; {\\rm eV} \\lesssim m_X \\lesssim 100 \\; {\\rm MeV}$; masses lighter than about an ${\\rm eV}$ have strong constraints from fifth-force law constraints, while masses heavier than about 100 MeV are constrained by other probes. We do not assume $X$ began in thermal equilibrium with the SM; instead, we allow $X$ to freeze-in from its very weak interactions with the SM. We find $U","authors_text":"Graham D. Kribs, Haidar Esseili","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2023-08-15T18:00:02Z","title":"Cosmological Implications of Gauged $U(1)_{B-L}$ on $\\Delta N_{\\rm eff}$ in the CMB and BBN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.07955","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:aa31a13bf8d94b1f3076777472659dc2182246096b9f9a419ee631e9689b17b9","target":"record","created_at":"2026-07-05T08:13:08Z","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":"d2ea7d819905f72afed5c8f2327d7417d0ee0fd5160ebab730e12e35f973889e","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2023-08-15T18:00:02Z","title_canon_sha256":"eadc9a6653762529f9bd2318066cc3961dbc128889a56e78e63a4f1be4027d18"},"schema_version":"1.0","source":{"id":"2308.07955","kind":"arxiv","version":2}},"canonical_sha256":"4a81f9f5dbd923b61e5124872c3701f7e174e42eaecd0b2052ed5a93d29b4027","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a81f9f5dbd923b61e5124872c3701f7e174e42eaecd0b2052ed5a93d29b4027","first_computed_at":"2026-07-05T08:13:08.608354Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:13:08.608354Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BXObACHcNjW4LES++MaIX48p0F448+OJJTpwv5U0U0hHPnEXjQ6hOqOS+Cob1uK0//sTjBeQ8YWzeQv++0+RCA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:13:08.608761Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.07955","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa31a13bf8d94b1f3076777472659dc2182246096b9f9a419ee631e9689b17b9","sha256:d6c397af3b1ce1300d7b201f8b69942b1a3171070449c96740eac94880017fa7"],"state_sha256":"3a167fdf390d06e022b01f0cc587afc9af82a72d40daa8c197f2b9d615e77ca5"}