{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:T4ACORY3NIZQHW36SV2QGIUZZM","short_pith_number":"pith:T4ACORY3","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"},"canonical_sha256":"9f0027471b6a3303db7e9575032299cb22874ce5b8dcf1ff54f3fe258985f586","source":{"kind":"arxiv","id":"1810.08803","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08803","created_at":"2026-05-17T23:52:40Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08803v2","created_at":"2026-05-17T23:52:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08803","created_at":"2026-05-17T23:52:40Z"},{"alias_kind":"pith_short_12","alias_value":"T4ACORY3NIZQ","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"T4ACORY3NIZQHW36","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"T4ACORY3","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:T4ACORY3NIZQHW36SV2QGIUZZM","target":"record","payload":{"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"},"canonical_sha256":"9f0027471b6a3303db7e9575032299cb22874ce5b8dcf1ff54f3fe258985f586","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"},"source_kind":"arxiv","source_id":"1810.08803","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:52:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"007+kFnGd4EPVKN12jtj0F9yYNDD8TDq2qocU/K84FbBczDmauy7T5s86qEQ/vM/YWHdgJVDle9+trQXZ1l8CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:14:41.835896Z"},"content_sha256":"b31abfb5c85c3432943358151edf4587f603e46bb01387a9a29bc2cd0196c844","schema_version":"1.0","event_id":"sha256:b31abfb5c85c3432943358151edf4587f603e46bb01387a9a29bc2cd0196c844"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:T4ACORY3NIZQHW36SV2QGIUZZM","target":"graph","payload":{"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:52:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iuNBeFhVUa0NcEMzTxcQuluyfMpi6g8E6H9I5eCBADwM30+fNWZKdMWYzx89VhXJFXMk0UdywvY5V11ksDMYAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:14:41.836580Z"},"content_sha256":"fd85c0d11bb64553a0e06ed29502f4cccea5d26a159bef39dba9ecc366167967","schema_version":"1.0","event_id":"sha256:fd85c0d11bb64553a0e06ed29502f4cccea5d26a159bef39dba9ecc366167967"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/bundle.json","state_url":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T4ACORY3NIZQHW36SV2QGIUZZM/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-27T01:14:41Z","links":{"resolver":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM","bundle":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/bundle.json","state":"https://pith.science/pith/T4ACORY3NIZQHW36SV2QGIUZZM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T4ACORY3NIZQHW36SV2QGIUZZM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:T4ACORY3NIZQHW36SV2QGIUZZM","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":"5ec1e8f8bdef44f0881246445e5ba7f8e974bee59a5cc859821f66c47c866e16","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-10-20T13:34:33Z","title_canon_sha256":"60a2c81363e3cc1b2ed6aa9d6d24499aa2fd443ef6ece94d6b8194bff2593b19"},"schema_version":"1.0","source":{"id":"1810.08803","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08803","created_at":"2026-05-17T23:52:40Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08803v2","created_at":"2026-05-17T23:52:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08803","created_at":"2026-05-17T23:52:40Z"},{"alias_kind":"pith_short_12","alias_value":"T4ACORY3NIZQ","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"T4ACORY3NIZQHW36","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"T4ACORY3","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:fd85c0d11bb64553a0e06ed29502f4cccea5d26a159bef39dba9ecc366167967","target":"graph","created_at":"2026-05-17T23:52:40Z","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 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","authors_text":"Grant J. Mathews, Motohiko Kusakabe, Toshitaka Kajino, Yudong Luo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-10-20T13:34:33Z","title":"Big Bang Nucleosynthesis with an Inhomogeneous Primordial Magnetic Field Strength"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08803","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:b31abfb5c85c3432943358151edf4587f603e46bb01387a9a29bc2cd0196c844","target":"record","created_at":"2026-05-17T23:52:40Z","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":"5ec1e8f8bdef44f0881246445e5ba7f8e974bee59a5cc859821f66c47c866e16","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-10-20T13:34:33Z","title_canon_sha256":"60a2c81363e3cc1b2ed6aa9d6d24499aa2fd443ef6ece94d6b8194bff2593b19"},"schema_version":"1.0","source":{"id":"1810.08803","kind":"arxiv","version":2}},"canonical_sha256":"9f0027471b6a3303db7e9575032299cb22874ce5b8dcf1ff54f3fe258985f586","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f0027471b6a3303db7e9575032299cb22874ce5b8dcf1ff54f3fe258985f586","first_computed_at":"2026-05-17T23:52:40.390546Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:40.390546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"86+9sojAzR6MFb7G0Bs+M2///pDeMtB0No6fT/g4TpSV+Qz/LRE5irlaG95t4S+x4fL+ztFy7UiDUxNkoKE/Cw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:40.391100Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.08803","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b31abfb5c85c3432943358151edf4587f603e46bb01387a9a29bc2cd0196c844","sha256:fd85c0d11bb64553a0e06ed29502f4cccea5d26a159bef39dba9ecc366167967"],"state_sha256":"cacad54c2beea839bf615279a65cbc33bf22e948a8014e2b62f413505003c94d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O1ZfOfHMtxAaFUFIgqZiw7Ti3+dPJVXC6Ez3W4hYE1qycVDyANs3yAfR3TCRAObjOGoZPdmhZZMNC0T52nbgDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T01:14:41.840147Z","bundle_sha256":"aaded288742dc65af46322b33df06d6802d397f1b405487b73b0d3d5813e8c07"}}