{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:33K4PSBT4Z77GQIICJCJ4LUMCL","short_pith_number":"pith:33K4PSBT","canonical_record":{"source":{"id":"2603.02652","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2026-03-03T06:36:42Z","cross_cats_sorted":["astro-ph.CO","nucl-th"],"title_canon_sha256":"d982337b45670801b096d3750866371574eafa5e6e856f45c39610f580add120","abstract_canon_sha256":"5d9a6abf87c7eb6a37b03097c44fdbb4cf1af3c463d2ca3462af37f314cd1e8d"},"schema_version":"1.0"},"canonical_sha256":"ded5c7c833e67ff3410812449e2e8c12c4df917902905631f9674be71c3b8ece","source":{"kind":"arxiv","id":"2603.02652","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.02652","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"arxiv_version","alias_value":"2603.02652v2","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.02652","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"pith_short_12","alias_value":"33K4PSBT4Z77","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"pith_short_16","alias_value":"33K4PSBT4Z77GQII","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"pith_short_8","alias_value":"33K4PSBT","created_at":"2026-06-30T01:16:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:33K4PSBT4Z77GQIICJCJ4LUMCL","target":"record","payload":{"canonical_record":{"source":{"id":"2603.02652","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2026-03-03T06:36:42Z","cross_cats_sorted":["astro-ph.CO","nucl-th"],"title_canon_sha256":"d982337b45670801b096d3750866371574eafa5e6e856f45c39610f580add120","abstract_canon_sha256":"5d9a6abf87c7eb6a37b03097c44fdbb4cf1af3c463d2ca3462af37f314cd1e8d"},"schema_version":"1.0"},"canonical_sha256":"ded5c7c833e67ff3410812449e2e8c12c4df917902905631f9674be71c3b8ece","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-30T01:16:28.783427Z","signature_b64":"tWCQbs3ygZ5Md0WMXGHZiDhsMUWJmR04sty+HuEwXRAZXx46niqPzYO4dvVCjC7WpQC+AIQgYGAGOhjBZgC3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ded5c7c833e67ff3410812449e2e8c12c4df917902905631f9674be71c3b8ece","last_reissued_at":"2026-06-30T01:16:28.782917Z","signature_status":"signed_v1","first_computed_at":"2026-06-30T01:16:28.782917Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.02652","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":"2026-06-30T01:16:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JeUpsvIKrBIHgfoRC6WNrAUno7minC0iZqvjjSrsYbb3Yy8moU7UtP5BtymqNlln4wqH7iWPoj1b1F1BxlpXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:26:27.113148Z"},"content_sha256":"27fe9ebcd22e98a3f7d516af57378edd32a1ce49ba0ca5e7f408831807ec8f66","schema_version":"1.0","event_id":"sha256:27fe9ebcd22e98a3f7d516af57378edd32a1ce49ba0ca5e7f408831807ec8f66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:33K4PSBT4Z77GQIICJCJ4LUMCL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Weinberg Angle, Neutron Abundance in BBN, and Lifetime","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","nucl-th"],"primary_cat":"hep-ph","authors_text":"Cheng Tao Yang, Johann Rafelski","submitted_at":"2026-03-03T06:36:42Z","abstract_excerpt":"We present state of the art kinetic theory determination of the neutron abundance available for the Big-Bang nucleosynthesis (BBN). Our work is motivated by the study of the neutron lifespan measured in the laboratory and the unknown strength of weak interactions coupling constant $G_\\mathrm{F}$ at finite temperature in the primordial Universe. We draw attention to the relevant dependence of $G_\\mathrm{F}$ on the symmetry breaking Weinberg angle $s^2_\\mathrm{W}$, a free parameter in the standard model of particle physics. We establish how the value of $s^2_\\mathrm{W}$ by way of $G_\\mathrm{F}$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.02652","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.02652/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-06-30T01:16:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m9mxbqYhCo61bWFK0ADNnIZ2vXww+2NTLnAdWg4drjRXBmSx7f55OWw6I/o+BMEQ3KJbDspVoBUR/MSazlE2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:26:27.113643Z"},"content_sha256":"e4f4ac895cb9eaf5e93bd736cf3f78d773feec9bee2d41aea9499fd0f6011b94","schema_version":"1.0","event_id":"sha256:e4f4ac895cb9eaf5e93bd736cf3f78d773feec9bee2d41aea9499fd0f6011b94"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/33K4PSBT4Z77GQIICJCJ4LUMCL/bundle.json","state_url":"https://pith.science/pith/33K4PSBT4Z77GQIICJCJ4LUMCL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/33K4PSBT4Z77GQIICJCJ4LUMCL/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":"2026-08-03T19:26:27Z","links":{"resolver":"https://pith.science/pith/33K4PSBT4Z77GQIICJCJ4LUMCL","bundle":"https://pith.science/pith/33K4PSBT4Z77GQIICJCJ4LUMCL/bundle.json","state":"https://pith.science/pith/33K4PSBT4Z77GQIICJCJ4LUMCL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/33K4PSBT4Z77GQIICJCJ4LUMCL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:33K4PSBT4Z77GQIICJCJ4LUMCL","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":"5d9a6abf87c7eb6a37b03097c44fdbb4cf1af3c463d2ca3462af37f314cd1e8d","cross_cats_sorted":["astro-ph.CO","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2026-03-03T06:36:42Z","title_canon_sha256":"d982337b45670801b096d3750866371574eafa5e6e856f45c39610f580add120"},"schema_version":"1.0","source":{"id":"2603.02652","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.02652","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"arxiv_version","alias_value":"2603.02652v2","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.02652","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"pith_short_12","alias_value":"33K4PSBT4Z77","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"pith_short_16","alias_value":"33K4PSBT4Z77GQII","created_at":"2026-06-30T01:16:28Z"},{"alias_kind":"pith_short_8","alias_value":"33K4PSBT","created_at":"2026-06-30T01:16:28Z"}],"graph_snapshots":[{"event_id":"sha256:e4f4ac895cb9eaf5e93bd736cf3f78d773feec9bee2d41aea9499fd0f6011b94","target":"graph","created_at":"2026-06-30T01:16:28Z","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/2603.02652/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present state of the art kinetic theory determination of the neutron abundance available for the Big-Bang nucleosynthesis (BBN). Our work is motivated by the study of the neutron lifespan measured in the laboratory and the unknown strength of weak interactions coupling constant $G_\\mathrm{F}$ at finite temperature in the primordial Universe. We draw attention to the relevant dependence of $G_\\mathrm{F}$ on the symmetry breaking Weinberg angle $s^2_\\mathrm{W}$, a free parameter in the standard model of particle physics. We establish how the value of $s^2_\\mathrm{W}$ by way of $G_\\mathrm{F}$ ","authors_text":"Cheng Tao Yang, Johann Rafelski","cross_cats":["astro-ph.CO","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2026-03-03T06:36:42Z","title":"Weinberg Angle, Neutron Abundance in BBN, and Lifetime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.02652","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":"sha256:27fe9ebcd22e98a3f7d516af57378edd32a1ce49ba0ca5e7f408831807ec8f66","target":"record","created_at":"2026-06-30T01:16:28Z","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":"5d9a6abf87c7eb6a37b03097c44fdbb4cf1af3c463d2ca3462af37f314cd1e8d","cross_cats_sorted":["astro-ph.CO","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2026-03-03T06:36:42Z","title_canon_sha256":"d982337b45670801b096d3750866371574eafa5e6e856f45c39610f580add120"},"schema_version":"1.0","source":{"id":"2603.02652","kind":"arxiv","version":2}},"canonical_sha256":"ded5c7c833e67ff3410812449e2e8c12c4df917902905631f9674be71c3b8ece","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ded5c7c833e67ff3410812449e2e8c12c4df917902905631f9674be71c3b8ece","first_computed_at":"2026-06-30T01:16:28.782917Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-30T01:16:28.782917Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tWCQbs3ygZ5Md0WMXGHZiDhsMUWJmR04sty+HuEwXRAZXx46niqPzYO4dvVCjC7WpQC+AIQgYGAGOhjBZgC3DQ==","signature_status":"signed_v1","signed_at":"2026-06-30T01:16:28.783427Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.02652","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:27fe9ebcd22e98a3f7d516af57378edd32a1ce49ba0ca5e7f408831807ec8f66","sha256:e4f4ac895cb9eaf5e93bd736cf3f78d773feec9bee2d41aea9499fd0f6011b94"],"state_sha256":"4209a3b7301ab67a1f57ece34820f4dd87ff387a0460324319757057a274fb8a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wLy/WomCiY6pxOgJOSH8INJKm7QW1sNlznTMiuwTjweLkoGvWVf2sJgR26rzo7bFyMDIrjFDf14sCLr13KvKBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:26:27.118862Z","bundle_sha256":"8fa95b224193f611a9a7ba6c3ae2aa2fb50184ff975394d91f858881941ae5f3"}}