{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1992:W4T3MLWMEPYNG5C3Q5VOVCUW67","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":"80b0711cb65a46134fc1032c3c03c72db34ee38f237f1b7d73e0d379b2c8a429","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1992-05-04T22:01:53Z","title_canon_sha256":"8d5f57cdec1964724e5b40b23d84484b75b4c6ff82e9d62eb04175bc458fb9a2"},"schema_version":"1.0","source":{"id":"hep-ph/9205202","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9205202","created_at":"2026-05-18T04:37:56Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9205202v1","created_at":"2026-05-18T04:37:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9205202","created_at":"2026-05-18T04:37:56Z"},{"alias_kind":"pith_short_12","alias_value":"W4T3MLWMEPYN","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"W4T3MLWMEPYNG5C3","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"W4T3MLWM","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:7aac748f8fadb4b1898b444372b727a605008358a73591680fc5286de4a58c27","target":"graph","created_at":"2026-05-18T04:37:56Z","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":"We suggest here that CP is a discrete {\\it gauge} symmetry, and is therefore not violated by quantum gravity. We show that four dimensional CP can arise as a discrete gauge symmetry in theories with dimensional compactification, if the original number of Minkowski dimensions equals $8k+1$, $8k+2$ or $8k+3$, and if there are certain restrictions on the gauge group; these conditions are met by superstrings. CP may then be broken spontaneously below $10^9$ GeV, explaining the observed CP violation in the kaon system without inducing a large EDMN. We discuss the phenomenology of such models, as we","authors_text":"Ann E. Nelson, David B. Kaplan, Kiwoon Choi","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1992-05-04T22:01:53Z","title":"Is CP a Gauge Symmetry?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9205202","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":"sha256:07c29c8c013f2b5a84ea7152ba548cbf1e851113484445e3f1a476e99d7b416c","target":"record","created_at":"2026-05-18T04:37:56Z","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":"80b0711cb65a46134fc1032c3c03c72db34ee38f237f1b7d73e0d379b2c8a429","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1992-05-04T22:01:53Z","title_canon_sha256":"8d5f57cdec1964724e5b40b23d84484b75b4c6ff82e9d62eb04175bc458fb9a2"},"schema_version":"1.0","source":{"id":"hep-ph/9205202","kind":"arxiv","version":1}},"canonical_sha256":"b727b62ecc23f0d3745b876aea8a96f7fa888a4b1cc0b6b7c700d4efddf8d32d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b727b62ecc23f0d3745b876aea8a96f7fa888a4b1cc0b6b7c700d4efddf8d32d","first_computed_at":"2026-05-18T04:37:56.305388Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:37:56.305388Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ev289UaxE9Y4/cIbJMaLQ0TQ3AQwlOtAEAzAzkG0MT10XqlnebDoMbh0aSM5bCYOyi0E+2mPt+Ou5LTitXZqAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:37:56.306049Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9205202","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07c29c8c013f2b5a84ea7152ba548cbf1e851113484445e3f1a476e99d7b416c","sha256:7aac748f8fadb4b1898b444372b727a605008358a73591680fc5286de4a58c27"],"state_sha256":"7fc1cf54bbe2bd6bcfcd88b82ec50aee0361518dce4eee40356b047cc8b45244"}