{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KTHHAE3FREKWH7ZALI5DNYGY3T","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":"292ab4dcc21d818637c82571bb9201e2d2b2c0d22760d692dc11701e3fa982e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-08-06T10:15:33Z","title_canon_sha256":"771158be1857edbd05da36ac4dc67e006193d23e5a44600f58b1f7b21aefd119"},"schema_version":"1.0","source":{"id":"1308.1227","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.1227","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"arxiv_version","alias_value":"1308.1227v1","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.1227","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"pith_short_12","alias_value":"KTHHAE3FREKW","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KTHHAE3FREKWH7ZA","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KTHHAE3F","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:146829dbad6ee3bfbfddfe91ecf69610dcc4978af99bce2b411dd20ca177dbc7","target":"graph","created_at":"2026-05-18T03:07:22Z","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 axion solution to the strong CP problem calls for an explanation as to why the Lagrangian should be invariant under the global Peccei-Quinn symmetry, U(1)_PQ, to such a high degree of accuracy. In this paper, we point out that the U(1)_PQ can indeed survive as an accidental symmetry in the low-energy effective theory, if the standard model gauge group is supplemented by a gauged and discrete R symmetry, Z_N^R, forbidding all dangerous operators that explicitly break the Peccei-Quinn symmetry. In contrast to similar approaches, the requirement that the Z_N^R symmetry be anomaly-free forces ","authors_text":"Kai Schmitz, Keisuke Harigaya, Masahiro Ibe, Tsutomu T. Yanagida","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-08-06T10:15:33Z","title":"The Peccei-Quinn Symmetry from a Gauged Discrete R Symmetry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.1227","kind":"arxiv","version":1},"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:df777707dfe7d273e4dee8de1e237d6a40822a5450c94366d78968454b573868","target":"record","created_at":"2026-05-18T03:07:22Z","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":"292ab4dcc21d818637c82571bb9201e2d2b2c0d22760d692dc11701e3fa982e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-08-06T10:15:33Z","title_canon_sha256":"771158be1857edbd05da36ac4dc67e006193d23e5a44600f58b1f7b21aefd119"},"schema_version":"1.0","source":{"id":"1308.1227","kind":"arxiv","version":1}},"canonical_sha256":"54ce701365891563ff205a3a36e0d8dccdc0ed8767feb8c63715c6f50feb3256","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"54ce701365891563ff205a3a36e0d8dccdc0ed8767feb8c63715c6f50feb3256","first_computed_at":"2026-05-18T03:07:22.954549Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:07:22.954549Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A4DSMus3FKn2xbHQ2JgXNik5T/OJBG3u1p+z75eXjzrFFKNs/zkurEajszX3Qqge7+ahpFl7l0tU411j+C0RDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:07:22.955016Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.1227","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df777707dfe7d273e4dee8de1e237d6a40822a5450c94366d78968454b573868","sha256:146829dbad6ee3bfbfddfe91ecf69610dcc4978af99bce2b411dd20ca177dbc7"],"state_sha256":"c4341e118c5d6d895a80263b894985a66d3daaed2c198e5210876fcea253e3b2"}