{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:KHUU2ZTD6TCBBDCWLGIX5CY22E","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":"f3454e33b7008ca454c9ffdc98d092530da8be2f988679eb7746c5e4aa3225ea","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-09-12T10:57:35Z","title_canon_sha256":"7a8b066fa05a55e8ec416c427877ffe57de96b9789e419bcdd6356c0f5ce799e"},"schema_version":"1.0","source":{"id":"1209.2558","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2558","created_at":"2026-05-18T03:39:51Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2558v2","created_at":"2026-05-18T03:39:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2558","created_at":"2026-05-18T03:39:51Z"},{"alias_kind":"pith_short_12","alias_value":"KHUU2ZTD6TCB","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KHUU2ZTD6TCBBDCW","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KHUU2ZTD","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:b8d7c524a90523c416042a825ad8a8422ef408b439438456b78f9986b1d0d56c","target":"graph","created_at":"2026-05-18T03:39:51Z","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":"The hidden photon model is one of the simplest models which can explain the anomaly of the muon anomalous magnetic moment (g-2). The experimental constraints are studied in detail, which come from the electron g-2 and the hydrogen transition frequencies. The input parameters are set carefully in order to take dark photon contributions into account and to prevent the analysis from being self-inconsistent. It is shown that the new analysis provides a constraint severer by more than one order of magnitude than the previous result.","authors_text":"Go Mishima, Koichi Hamaguchi, Motoi Endo","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-09-12T10:57:35Z","title":"Constraints on Hidden Photon Models from Electron g-2 and Hydrogen Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2558","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:f17e3d25c64fafd6991e37ff070d1439c612f76a3fe13b47a77d4f269593ca26","target":"record","created_at":"2026-05-18T03:39:51Z","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":"f3454e33b7008ca454c9ffdc98d092530da8be2f988679eb7746c5e4aa3225ea","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-09-12T10:57:35Z","title_canon_sha256":"7a8b066fa05a55e8ec416c427877ffe57de96b9789e419bcdd6356c0f5ce799e"},"schema_version":"1.0","source":{"id":"1209.2558","kind":"arxiv","version":2}},"canonical_sha256":"51e94d6663f4c4108c5659917e8b1ad10a5c3df000c4fccd97547e869b25b4a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51e94d6663f4c4108c5659917e8b1ad10a5c3df000c4fccd97547e869b25b4a7","first_computed_at":"2026-05-18T03:39:51.602573Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:39:51.602573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u8s+097IVObkcJ1g01B7HR0Um3/xh4MlpzPhElYDAWDKNyJJjvpeKYmpVtRBYlx1Eed7RVd8WG0lST7rOD/pDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:39:51.603123Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.2558","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f17e3d25c64fafd6991e37ff070d1439c612f76a3fe13b47a77d4f269593ca26","sha256:b8d7c524a90523c416042a825ad8a8422ef408b439438456b78f9986b1d0d56c"],"state_sha256":"3bf25925f02e04d9684d256f4e14f64bbc13f8e1c614bedf055a842dd5abd70f"}