{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:OJZVRRXVU74LOJHKIMMQWCXZER","short_pith_number":"pith:OJZVRRXV","canonical_record":{"source":{"id":"1504.01798","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-08T01:49:11Z","cross_cats_sorted":["hep-ph","hep-th","nucl-th","physics.atom-ph"],"title_canon_sha256":"a5c7ae6669a02b52a40094cc8335b3775c9c643a66b29f450fa15d1151cc8f97","abstract_canon_sha256":"1deaaf0388e1219d1248bb4a78f939c1a5e946ce34db7ed5ce67400d1ba1b22b"},"schema_version":"1.0"},"canonical_sha256":"727358c6f5a7f8b724ea43190b0af9246a99bc12f7c874cb20e8eeecc253d7b8","source":{"kind":"arxiv","id":"1504.01798","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01798","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01798v2","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01798","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"pith_short_12","alias_value":"OJZVRRXVU74L","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OJZVRRXVU74LOJHK","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OJZVRRXV","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:OJZVRRXVU74LOJHKIMMQWCXZER","target":"record","payload":{"canonical_record":{"source":{"id":"1504.01798","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-08T01:49:11Z","cross_cats_sorted":["hep-ph","hep-th","nucl-th","physics.atom-ph"],"title_canon_sha256":"a5c7ae6669a02b52a40094cc8335b3775c9c643a66b29f450fa15d1151cc8f97","abstract_canon_sha256":"1deaaf0388e1219d1248bb4a78f939c1a5e946ce34db7ed5ce67400d1ba1b22b"},"schema_version":"1.0"},"canonical_sha256":"727358c6f5a7f8b724ea43190b0af9246a99bc12f7c874cb20e8eeecc253d7b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:00.086372Z","signature_b64":"9oLG6n91+mghgbDDiFZPQ+1P8YaTws+CCyVywUImqRcFmMkCyd+pcEQr5ua53VDVVw6Tw/WQWz3qUuS0OvcjDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"727358c6f5a7f8b724ea43190b0af9246a99bc12f7c874cb20e8eeecc253d7b8","last_reissued_at":"2026-05-18T02:19:00.085849Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:00.085849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.01798","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":"2026-05-18T02:19:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/4MG0xQK3rrM9fOqNOkqRxwVXT4hRGBK0Ox1MyTH84SoHehvfd9ZwqG9a+wWSkkY4ivPyGdwhlFjMGckW+N8Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T22:44:55.683937Z"},"content_sha256":"1e99ea65a9758662d22b6953b5d6d2e961536e9f1a3363a363a91ae3c5fdb550","schema_version":"1.0","event_id":"sha256:1e99ea65a9758662d22b6953b5d6d2e961536e9f1a3363a363a91ae3c5fdb550"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:OJZVRRXVU74LOJHKIMMQWCXZER","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining scalar dark matter with Big Bang nucleosynthesis and atomic spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","hep-th","nucl-th","physics.atom-ph"],"primary_cat":"astro-ph.CO","authors_text":"V. V. Flambaum, Y. V. Stadnik","submitted_at":"2015-04-08T01:49:11Z","abstract_excerpt":"Scalar dark matter can interact with Standard Model (SM) particles, altering the fundamental constants of Nature in the process. Changes in the fundamental constants during and prior to Big Bang nucleosynthesis (BBN) produce changes in the primordial abundances of the light elements. By comparing the measured and calculated (within the SM) primordial abundance of $^{4}$He, which is predominantly determined by the ratio of the neutron-proton mass difference to freeze-out temperature at the time of weak interaction freeze-out prior to BBN, we are able to derive stringent constraints on the mass "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01798","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":"2026-05-18T02:19:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ogNB+67JJYrXkNJgM5FW6tRyY1bp8q3We9JBSTG5t+AUSycsJIQxH5x9V15NZiBG+sTUhzKFNE2iEdBMIFIwAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T22:44:55.684311Z"},"content_sha256":"ce2e756e0dc8482d69c50fefc709449b3a2122670b25e1cf067b77175de2e472","schema_version":"1.0","event_id":"sha256:ce2e756e0dc8482d69c50fefc709449b3a2122670b25e1cf067b77175de2e472"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OJZVRRXVU74LOJHKIMMQWCXZER/bundle.json","state_url":"https://pith.science/pith/OJZVRRXVU74LOJHKIMMQWCXZER/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OJZVRRXVU74LOJHKIMMQWCXZER/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":"2026-06-08T22:44:55Z","links":{"resolver":"https://pith.science/pith/OJZVRRXVU74LOJHKIMMQWCXZER","bundle":"https://pith.science/pith/OJZVRRXVU74LOJHKIMMQWCXZER/bundle.json","state":"https://pith.science/pith/OJZVRRXVU74LOJHKIMMQWCXZER/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OJZVRRXVU74LOJHKIMMQWCXZER/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:OJZVRRXVU74LOJHKIMMQWCXZER","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":"1deaaf0388e1219d1248bb4a78f939c1a5e946ce34db7ed5ce67400d1ba1b22b","cross_cats_sorted":["hep-ph","hep-th","nucl-th","physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-08T01:49:11Z","title_canon_sha256":"a5c7ae6669a02b52a40094cc8335b3775c9c643a66b29f450fa15d1151cc8f97"},"schema_version":"1.0","source":{"id":"1504.01798","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01798","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01798v2","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01798","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"pith_short_12","alias_value":"OJZVRRXVU74L","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OJZVRRXVU74LOJHK","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OJZVRRXV","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:ce2e756e0dc8482d69c50fefc709449b3a2122670b25e1cf067b77175de2e472","target":"graph","created_at":"2026-05-18T02:19:00Z","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":"Scalar dark matter can interact with Standard Model (SM) particles, altering the fundamental constants of Nature in the process. Changes in the fundamental constants during and prior to Big Bang nucleosynthesis (BBN) produce changes in the primordial abundances of the light elements. By comparing the measured and calculated (within the SM) primordial abundance of $^{4}$He, which is predominantly determined by the ratio of the neutron-proton mass difference to freeze-out temperature at the time of weak interaction freeze-out prior to BBN, we are able to derive stringent constraints on the mass ","authors_text":"V. V. Flambaum, Y. V. Stadnik","cross_cats":["hep-ph","hep-th","nucl-th","physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-08T01:49:11Z","title":"Constraining scalar dark matter with Big Bang nucleosynthesis and atomic spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01798","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":"sha256:1e99ea65a9758662d22b6953b5d6d2e961536e9f1a3363a363a91ae3c5fdb550","target":"record","created_at":"2026-05-18T02:19:00Z","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":"1deaaf0388e1219d1248bb4a78f939c1a5e946ce34db7ed5ce67400d1ba1b22b","cross_cats_sorted":["hep-ph","hep-th","nucl-th","physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-08T01:49:11Z","title_canon_sha256":"a5c7ae6669a02b52a40094cc8335b3775c9c643a66b29f450fa15d1151cc8f97"},"schema_version":"1.0","source":{"id":"1504.01798","kind":"arxiv","version":2}},"canonical_sha256":"727358c6f5a7f8b724ea43190b0af9246a99bc12f7c874cb20e8eeecc253d7b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"727358c6f5a7f8b724ea43190b0af9246a99bc12f7c874cb20e8eeecc253d7b8","first_computed_at":"2026-05-18T02:19:00.085849Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:19:00.085849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9oLG6n91+mghgbDDiFZPQ+1P8YaTws+CCyVywUImqRcFmMkCyd+pcEQr5ua53VDVVw6Tw/WQWz3qUuS0OvcjDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:19:00.086372Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.01798","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e99ea65a9758662d22b6953b5d6d2e961536e9f1a3363a363a91ae3c5fdb550","sha256:ce2e756e0dc8482d69c50fefc709449b3a2122670b25e1cf067b77175de2e472"],"state_sha256":"7a2f4f8f67cb638471183c5dbc6c0b02580ad93379580255da9aecab1a5664b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Edc9M2N/wB5Qz6evxLXTB4GqKJUBNpVfF6z69gA0gvbHHPgMJ5CqjNAHJ0TAN7hP2QOwFKpq1BA0ttT/C3vQDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T22:44:55.686253Z","bundle_sha256":"56bca8472dfdea57037c2adbe776b176b054fd9d52a615ffc780ffd427b8fa3b"}}