{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:VQM7KYOMWNHUUGLYFNHNXQR3MA","short_pith_number":"pith:VQM7KYOM","canonical_record":{"source":{"id":"hep-ph/0201107","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2002-01-13T10:35:47Z","cross_cats_sorted":["astro-ph"],"title_canon_sha256":"fdd9d5167da42b84b3b5c87d93fd67c43e1efd58fed4d8d8a75b694fb3278bcb","abstract_canon_sha256":"a97e80825e30c169caecaa659e7f188804469c34f7a9baa5149cd280c8432b0a"},"schema_version":"1.0"},"canonical_sha256":"ac19f561ccb34f4a19782b4edbc23b6033f32041535dcefcdbb70aa34e8fc124","source":{"kind":"arxiv","id":"hep-ph/0201107","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0201107","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0201107v2","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0201107","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"pith_short_12","alias_value":"VQM7KYOMWNHU","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"VQM7KYOMWNHUUGLY","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"VQM7KYOM","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:VQM7KYOMWNHUUGLYFNHNXQR3MA","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0201107","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2002-01-13T10:35:47Z","cross_cats_sorted":["astro-ph"],"title_canon_sha256":"fdd9d5167da42b84b3b5c87d93fd67c43e1efd58fed4d8d8a75b694fb3278bcb","abstract_canon_sha256":"a97e80825e30c169caecaa659e7f188804469c34f7a9baa5149cd280c8432b0a"},"schema_version":"1.0"},"canonical_sha256":"ac19f561ccb34f4a19782b4edbc23b6033f32041535dcefcdbb70aa34e8fc124","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:09.136196Z","signature_b64":"3BrcAmnBLlS+ZP7U9xSlGLZbbUsCUtD6yFBUDjvwU3OQibHh/piDyx2baxjnyhUH/Rzgh4Gdr08dAvWSDrhEDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac19f561ccb34f4a19782b4edbc23b6033f32041535dcefcdbb70aa34e8fc124","last_reissued_at":"2026-05-18T01:39:09.135685Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:09.135685Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0201107","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":"2026-05-18T01:39:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yIGwwJdByULw/lejf8LQ/D2dKjFl6MK7OCw5n6YN0FBldwegiMGV14FDFHfGxV9Z0XcT0eQy5Jch36PFVWDiBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:28:48.821009Z"},"content_sha256":"5a0afbc8ac0b509939db8989fc4e1a196743f362ab1146e5d1daa41bf743b04e","schema_version":"1.0","event_id":"sha256:5a0afbc8ac0b509939db8989fc4e1a196743f362ab1146e5d1daa41bf743b04e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:VQM7KYOMWNHUUGLYFNHNXQR3MA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Big Bang Nucleosynthesis","license":"","headline":"","cross_cats":["astro-ph"],"primary_cat":"hep-ph","authors_text":"A.D. Dolgov","submitted_at":"2002-01-13T10:35:47Z","abstract_excerpt":"A review of Big Bang Nucleosynthesis (BBN) is presented. Observations of deuterium and helium-4 are discussed. Some BBN restrictions on non-standard physics, especially on neutrino properties and time-variation of fundamental constants are given."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0201107","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":"2026-05-18T01:39:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qZ+wLAi8BvAwchLHqBfl3kCOgURlGmxf0uAbpnyFx7f1CptQYmoTweLX5mMQOh9VKlm+p4UC+sHCsthkF9DnBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:28:48.821368Z"},"content_sha256":"59696bd8eea5ab36db41f82d6b9efdc70a253e1601c7203ffbc2c4e6b266a56b","schema_version":"1.0","event_id":"sha256:59696bd8eea5ab36db41f82d6b9efdc70a253e1601c7203ffbc2c4e6b266a56b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VQM7KYOMWNHUUGLYFNHNXQR3MA/bundle.json","state_url":"https://pith.science/pith/VQM7KYOMWNHUUGLYFNHNXQR3MA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VQM7KYOMWNHUUGLYFNHNXQR3MA/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":"2026-05-28T06:28:48Z","links":{"resolver":"https://pith.science/pith/VQM7KYOMWNHUUGLYFNHNXQR3MA","bundle":"https://pith.science/pith/VQM7KYOMWNHUUGLYFNHNXQR3MA/bundle.json","state":"https://pith.science/pith/VQM7KYOMWNHUUGLYFNHNXQR3MA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VQM7KYOMWNHUUGLYFNHNXQR3MA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:VQM7KYOMWNHUUGLYFNHNXQR3MA","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":"a97e80825e30c169caecaa659e7f188804469c34f7a9baa5149cd280c8432b0a","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"2002-01-13T10:35:47Z","title_canon_sha256":"fdd9d5167da42b84b3b5c87d93fd67c43e1efd58fed4d8d8a75b694fb3278bcb"},"schema_version":"1.0","source":{"id":"hep-ph/0201107","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0201107","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0201107v2","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0201107","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"pith_short_12","alias_value":"VQM7KYOMWNHU","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"VQM7KYOMWNHUUGLY","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"VQM7KYOM","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:59696bd8eea5ab36db41f82d6b9efdc70a253e1601c7203ffbc2c4e6b266a56b","target":"graph","created_at":"2026-05-18T01:39:09Z","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":"A review of Big Bang Nucleosynthesis (BBN) is presented. Observations of deuterium and helium-4 are discussed. Some BBN restrictions on non-standard physics, especially on neutrino properties and time-variation of fundamental constants are given.","authors_text":"A.D. Dolgov","cross_cats":["astro-ph"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2002-01-13T10:35:47Z","title":"Big Bang Nucleosynthesis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0201107","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":"sha256:5a0afbc8ac0b509939db8989fc4e1a196743f362ab1146e5d1daa41bf743b04e","target":"record","created_at":"2026-05-18T01:39:09Z","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":"a97e80825e30c169caecaa659e7f188804469c34f7a9baa5149cd280c8432b0a","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"2002-01-13T10:35:47Z","title_canon_sha256":"fdd9d5167da42b84b3b5c87d93fd67c43e1efd58fed4d8d8a75b694fb3278bcb"},"schema_version":"1.0","source":{"id":"hep-ph/0201107","kind":"arxiv","version":2}},"canonical_sha256":"ac19f561ccb34f4a19782b4edbc23b6033f32041535dcefcdbb70aa34e8fc124","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac19f561ccb34f4a19782b4edbc23b6033f32041535dcefcdbb70aa34e8fc124","first_computed_at":"2026-05-18T01:39:09.135685Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:09.135685Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3BrcAmnBLlS+ZP7U9xSlGLZbbUsCUtD6yFBUDjvwU3OQibHh/piDyx2baxjnyhUH/Rzgh4Gdr08dAvWSDrhEDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:09.136196Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0201107","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a0afbc8ac0b509939db8989fc4e1a196743f362ab1146e5d1daa41bf743b04e","sha256:59696bd8eea5ab36db41f82d6b9efdc70a253e1601c7203ffbc2c4e6b266a56b"],"state_sha256":"4409ed7e47f02131c142a27a54afb80cd84ab07e83b39c16fcb00759252f32fc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l8XHak1vcG7ygiENovh321m6TPFO5RsSjI1kjg0YQEQBxt3OW310ka384aFQXVScAnTHNDggOflMAhkmW84wAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:28:48.823278Z","bundle_sha256":"253d68a74acb6037c25cadd65feeb7e03ea06d7c064d9fdd8150068cacc0a465"}}