{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:T4ACORY3NIZQHW36SV2QGIUZZM","short_pith_number":"pith:T4ACORY3","schema_version":"1.0","canonical_sha256":"9f0027471b6a3303db7e9575032299cb22874ce5b8dcf1ff54f3fe258985f586","source":{"kind":"arxiv","id":"1810.08803","version":2},"attestation_state":"computed","paper":{"title":"Big Bang Nucleosynthesis with an Inhomogeneous Primordial Magnetic Field Strength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Grant J. Mathews, Motohiko Kusakabe, Toshitaka Kajino, Yudong Luo","submitted_at":"2018-10-20T13:34:33Z","abstract_excerpt":"We investigate the effect on the Big Bang Nucleosynthesis (BBN) from the presence of a stochastic primordial magnetic field (PMF) whose strength is spatially inhomogeneous. We assume a uniform total energy density and a gaussian distribution of field strength. In this case, domains of different temperatures exist in the BBN epoch due to variations in the local PMF. We show that in such case, the effective distribution function of particle velocities averaged over domains of different temperatures deviates from the Maxwell-Boltzmann distribution. This deviation is related to the scale invariant"},"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":"1810.08803","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-10-20T13:34:33Z","cross_cats_sorted":[],"title_canon_sha256":"60a2c81363e3cc1b2ed6aa9d6d24499aa2fd443ef6ece94d6b8194bff2593b19","abstract_canon_sha256":"5ec1e8f8bdef44f0881246445e5ba7f8e974bee59a5cc859821f66c47c866e16"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:40.391100Z","signature_b64":"86+9sojAzR6MFb7G0Bs+M2///pDeMtB0No6fT/g4TpSV+Qz/LRE5irlaG95t4S+x4fL+ztFy7UiDUxNkoKE/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f0027471b6a3303db7e9575032299cb22874ce5b8dcf1ff54f3fe258985f586","last_reissued_at":"2026-05-17T23:52:40.390546Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:40.390546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Big Bang Nucleosynthesis with an Inhomogeneous Primordial Magnetic Field Strength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Grant J. Mathews, Motohiko Kusakabe, Toshitaka Kajino, Yudong Luo","submitted_at":"2018-10-20T13:34:33Z","abstract_excerpt":"We investigate the effect on the Big Bang Nucleosynthesis (BBN) from the presence of a stochastic primordial magnetic field (PMF) whose strength is spatially inhomogeneous. We assume a uniform total energy density and a gaussian distribution of field strength. In this case, domains of different temperatures exist in the BBN epoch due to variations in the local PMF. We show that in such case, the effective distribution function of particle velocities averaged over domains of different temperatures deviates from the Maxwell-Boltzmann distribution. This deviation is related to the scale invariant"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08803","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":""},"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":"1810.08803","created_at":"2026-05-17T23:52:40.390642+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.08803v2","created_at":"2026-05-17T23:52:40.390642+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08803","created_at":"2026-05-17T23:52:40.390642+00:00"},{"alias_kind":"pith_short_12","alias_value":"T4ACORY3NIZQ","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_16","alias_value":"T4ACORY3NIZQHW36","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_8","alias_value":"T4ACORY3","created_at":"2026-05-18T12:32:53.628368+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.01324","citing_title":"Bipartite Solution to the Lithium Problem","ref_index":53,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM","json":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM.json","graph_json":"https://pith.science/api/pith-number/T4ACORY3NIZQHW36SV2QGIUZZM/graph.json","events_json":"https://pith.science/api/pith-number/T4ACORY3NIZQHW36SV2QGIUZZM/events.json","paper":"https://pith.science/paper/T4ACORY3"},"agent_actions":{"view_html":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM","download_json":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM.json","view_paper":"https://pith.science/paper/T4ACORY3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.08803&json=true","fetch_graph":"https://pith.science/api/pith-number/T4ACORY3NIZQHW36SV2QGIUZZM/graph.json","fetch_events":"https://pith.science/api/pith-number/T4ACORY3NIZQHW36SV2QGIUZZM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/action/storage_attestation","attest_author":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/action/author_attestation","sign_citation":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/action/citation_signature","submit_replication":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/action/replication_record"}},"created_at":"2026-05-17T23:52:40.390642+00:00","updated_at":"2026-05-17T23:52:40.390642+00:00"}