{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:PCCVXLWWBWJS72GNHCXH5OH23X","short_pith_number":"pith:PCCVXLWW","canonical_record":{"source":{"id":"1612.01525","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-12-05T21:00:00Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"1a0ed8bf9fffa83916a36bcc77952f32d1a55009876a4b02ae6377b416e01149","abstract_canon_sha256":"c4a81e10cf67a800cda6c101c1687ca8780ad2117e759a38cbce86ab7f5050fd"},"schema_version":"1.0"},"canonical_sha256":"78855baed60d932fe8cd38ae7eb8faddfbcdf63d748caafffb4f396d9730539e","source":{"kind":"arxiv","id":"1612.01525","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.01525","created_at":"2026-05-18T00:40:52Z"},{"alias_kind":"arxiv_version","alias_value":"1612.01525v2","created_at":"2026-05-18T00:40:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.01525","created_at":"2026-05-18T00:40:52Z"},{"alias_kind":"pith_short_12","alias_value":"PCCVXLWWBWJS","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"PCCVXLWWBWJS72GN","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"PCCVXLWW","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:PCCVXLWWBWJS72GNHCXH5OH23X","target":"record","payload":{"canonical_record":{"source":{"id":"1612.01525","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-12-05T21:00:00Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"1a0ed8bf9fffa83916a36bcc77952f32d1a55009876a4b02ae6377b416e01149","abstract_canon_sha256":"c4a81e10cf67a800cda6c101c1687ca8780ad2117e759a38cbce86ab7f5050fd"},"schema_version":"1.0"},"canonical_sha256":"78855baed60d932fe8cd38ae7eb8faddfbcdf63d748caafffb4f396d9730539e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:52.728947Z","signature_b64":"aGYo7Ak7/Ub3Rvm1C2q7Vnjf6GmG5LsEIXRvBkDM5lXL8dnXw2/8ztUcGwnToD4YJM5ca+YWYciftX6X80nJBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"78855baed60d932fe8cd38ae7eb8faddfbcdf63d748caafffb4f396d9730539e","last_reissued_at":"2026-05-18T00:40:52.728415Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:52.728415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.01525","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":"2026-05-18T00:40:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R8ltjWaZsL2zmpGy798MH9TDaF6LvgMIaOKEIBS2pcVWmpS9uMYGFHJMG5c0zNG1v2jeWWQQgBapkxzANy+OBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:53:10.346064Z"},"content_sha256":"d86dddeb04618823fcea198163e17880685d160f1deffe9b12c45877787b40fc","schema_version":"1.0","event_id":"sha256:d86dddeb04618823fcea198163e17880685d160f1deffe9b12c45877787b40fc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:PCCVXLWWBWJS72GNHCXH5OH23X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Light Axial Vectors, Nuclear Transitions, and the $^8$Be Anomaly","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"David E. Morrissey, Jonathan Kozaczuk, S. R. Stroberg","submitted_at":"2016-12-05T21:00:00Z","abstract_excerpt":"New hidden particles could potentially be emitted and discovered in rare nuclear transitions. In this work we investigate the production of hidden vector bosons with primarily axial couplings to light quarks in nuclear transitions, and we apply our results to the recent anomaly seen in $^8$Be decays. The relevant matrix elements for $^8{\\rm Be}^*(1^+) \\rightarrow ^8{\\rm Be} (0^+)$ transitions are calculated using ${\\it ab \\, initio}$ methods with inter-nucleon forces derived from chiral effective field theory and the in-medium similarity renormalization group. We find that the emission of a li"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.01525","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":"2026-05-18T00:40:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eaiBwNJdxsmn64ideCv6nglTcSX0WLsfF6AVwUj7F2Ei1xElQTS05BmZgLLsIBBJphvzYmQ20quhfyddNraMDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:53:10.346699Z"},"content_sha256":"37bbe5651bbe4cbd0f5db9e9bd1344da8d6f62f5f6e21eef81f8172ea6bf530a","schema_version":"1.0","event_id":"sha256:37bbe5651bbe4cbd0f5db9e9bd1344da8d6f62f5f6e21eef81f8172ea6bf530a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PCCVXLWWBWJS72GNHCXH5OH23X/bundle.json","state_url":"https://pith.science/pith/PCCVXLWWBWJS72GNHCXH5OH23X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PCCVXLWWBWJS72GNHCXH5OH23X/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":"2026-05-25T19:53:10Z","links":{"resolver":"https://pith.science/pith/PCCVXLWWBWJS72GNHCXH5OH23X","bundle":"https://pith.science/pith/PCCVXLWWBWJS72GNHCXH5OH23X/bundle.json","state":"https://pith.science/pith/PCCVXLWWBWJS72GNHCXH5OH23X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PCCVXLWWBWJS72GNHCXH5OH23X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:PCCVXLWWBWJS72GNHCXH5OH23X","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":"c4a81e10cf67a800cda6c101c1687ca8780ad2117e759a38cbce86ab7f5050fd","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-12-05T21:00:00Z","title_canon_sha256":"1a0ed8bf9fffa83916a36bcc77952f32d1a55009876a4b02ae6377b416e01149"},"schema_version":"1.0","source":{"id":"1612.01525","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.01525","created_at":"2026-05-18T00:40:52Z"},{"alias_kind":"arxiv_version","alias_value":"1612.01525v2","created_at":"2026-05-18T00:40:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.01525","created_at":"2026-05-18T00:40:52Z"},{"alias_kind":"pith_short_12","alias_value":"PCCVXLWWBWJS","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"PCCVXLWWBWJS72GN","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"PCCVXLWW","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:37bbe5651bbe4cbd0f5db9e9bd1344da8d6f62f5f6e21eef81f8172ea6bf530a","target":"graph","created_at":"2026-05-18T00:40:52Z","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":"New hidden particles could potentially be emitted and discovered in rare nuclear transitions. In this work we investigate the production of hidden vector bosons with primarily axial couplings to light quarks in nuclear transitions, and we apply our results to the recent anomaly seen in $^8$Be decays. The relevant matrix elements for $^8{\\rm Be}^*(1^+) \\rightarrow ^8{\\rm Be} (0^+)$ transitions are calculated using ${\\it ab \\, initio}$ methods with inter-nucleon forces derived from chiral effective field theory and the in-medium similarity renormalization group. We find that the emission of a li","authors_text":"David E. Morrissey, Jonathan Kozaczuk, S. R. Stroberg","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-12-05T21:00:00Z","title":"Light Axial Vectors, Nuclear Transitions, and the $^8$Be Anomaly"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.01525","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:d86dddeb04618823fcea198163e17880685d160f1deffe9b12c45877787b40fc","target":"record","created_at":"2026-05-18T00:40:52Z","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":"c4a81e10cf67a800cda6c101c1687ca8780ad2117e759a38cbce86ab7f5050fd","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-12-05T21:00:00Z","title_canon_sha256":"1a0ed8bf9fffa83916a36bcc77952f32d1a55009876a4b02ae6377b416e01149"},"schema_version":"1.0","source":{"id":"1612.01525","kind":"arxiv","version":2}},"canonical_sha256":"78855baed60d932fe8cd38ae7eb8faddfbcdf63d748caafffb4f396d9730539e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"78855baed60d932fe8cd38ae7eb8faddfbcdf63d748caafffb4f396d9730539e","first_computed_at":"2026-05-18T00:40:52.728415Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:52.728415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aGYo7Ak7/Ub3Rvm1C2q7Vnjf6GmG5LsEIXRvBkDM5lXL8dnXw2/8ztUcGwnToD4YJM5ca+YWYciftX6X80nJBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:52.728947Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.01525","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d86dddeb04618823fcea198163e17880685d160f1deffe9b12c45877787b40fc","sha256:37bbe5651bbe4cbd0f5db9e9bd1344da8d6f62f5f6e21eef81f8172ea6bf530a"],"state_sha256":"7b4d60214ba8d24e019261c8ee7b59a97b1bc5719aaac4ed1ad309ccb6d8989a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gH7MJ8n+UiWniEy7zYyIVUhRe53HuDYn8fa3HjfVbzLjmqR95WiWMH4XwF3JcEQjIAxismbsNvcjfduH87CEAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:53:10.350185Z","bundle_sha256":"6a5f352a0b4d7b4ab42da0ded361ee8db2ed9fd205ad77c24cca9193389994c6"}}