{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:T2QVOQ4BAUYLRUON6DC6GTY7HS","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":"17f2f87e2c3fcffd794b522b402437a21f61b8113c477cdb9f4c948413eb84f3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-11-07T17:04:31Z","title_canon_sha256":"6ac3bf95f613a98b8f3f2784cea9776a7ac21328181474358d9f3976a4fce53b"},"schema_version":"1.0","source":{"id":"0811.1163","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.1163","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"arxiv_version","alias_value":"0811.1163v3","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.1163","created_at":"2026-05-18T04:16:23Z"},{"alias_kind":"pith_short_12","alias_value":"T2QVOQ4BAUYL","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"T2QVOQ4BAUYLRUON","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"T2QVOQ4B","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:23cb1ec8cb96f5706d5ac5b3d37263b91aa355b79652450489ecaabaca1d3986","target":"graph","created_at":"2026-05-18T04:16:23Z","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 show that the strong CP problem can, in principle, be solved dynamically by adding extra-dimensions with compact topology. To this aim we consider a toy model for QCD, which contains a vacuum angle and a strong CP like problem. We further consider a higher dimensional theory, which has a trivial vacuum structure and which reproduces the perturbative properties of the toy model in the low-energy limit. In the weak coupling regime, where our computations are valid, we show that the vacuum structure of the low-energy action is still trivial and the strong CP problem is solved. No axion-like pa","authors_text":"F.L. Bezrukov, Y. Burnier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-11-07T17:04:31Z","title":"Compact extra-dimensions as solution to the strong CP problem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.1163","kind":"arxiv","version":3},"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:aa568bba4b86a76e6f26e962f83a0afbb1b5abe37dc9e775126d737b67bab8cd","target":"record","created_at":"2026-05-18T04:16:23Z","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":"17f2f87e2c3fcffd794b522b402437a21f61b8113c477cdb9f4c948413eb84f3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-11-07T17:04:31Z","title_canon_sha256":"6ac3bf95f613a98b8f3f2784cea9776a7ac21328181474358d9f3976a4fce53b"},"schema_version":"1.0","source":{"id":"0811.1163","kind":"arxiv","version":3}},"canonical_sha256":"9ea15743810530b8d1cdf0c5e34f1f3cab6db64c49184bca7926e0a44a8c58b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9ea15743810530b8d1cdf0c5e34f1f3cab6db64c49184bca7926e0a44a8c58b2","first_computed_at":"2026-05-18T04:16:23.225143Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:23.225143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kXxNFQq5zI48SGwr/GVDa+Q5NYeDjRySfAfOkDdHy5qVQSvAahuqF3cG7Cqr6pZuHZyaEqg/M59q1z77P8BQDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:23.225802Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.1163","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa568bba4b86a76e6f26e962f83a0afbb1b5abe37dc9e775126d737b67bab8cd","sha256:23cb1ec8cb96f5706d5ac5b3d37263b91aa355b79652450489ecaabaca1d3986"],"state_sha256":"b7604699cb64d105b7cf159d5c2004a2f1c526dcff9f6d2754ad3bd22f6f2fc6"}