{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TD5ZRNGGWIRIFVCIQSKVERHOW5","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":"446611ff7cd27590096dc1a832f7ceb950f4b982269bb12a3ccb94af5d7927a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2026-07-11T12:05:21Z","title_canon_sha256":"836fd43b43f25b01d8cb4ec21c2b4e09f8fd5eebb4975359b4a5bceb47325c4e"},"schema_version":"1.0","source":{"id":"2607.10272","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.10272","created_at":"2026-07-14T01:20:33Z"},{"alias_kind":"arxiv_version","alias_value":"2607.10272v1","created_at":"2026-07-14T01:20:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.10272","created_at":"2026-07-14T01:20:33Z"},{"alias_kind":"pith_short_12","alias_value":"TD5ZRNGGWIRI","created_at":"2026-07-14T01:20:33Z"},{"alias_kind":"pith_short_16","alias_value":"TD5ZRNGGWIRIFVCI","created_at":"2026-07-14T01:20:33Z"},{"alias_kind":"pith_short_8","alias_value":"TD5ZRNGG","created_at":"2026-07-14T01:20:33Z"}],"graph_snapshots":[{"event_id":"sha256:725d5d2f6bbc9b4214e678beceda8c49fb73425817bc923e8be9c0c07e492378","target":"graph","created_at":"2026-07-14T01:20:33Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2607.10272/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The conventional strong $CP$ problem arises from the apparent tension between the existence of a $CP$-violating $\\theta$ term in the conventional topological formulation of QCD and the experimental constraint that the corresponding parameter satisfies $\\theta\\lesssim 10^{-10}$. The standard formulation assumes a globally classified topological structure of gauge-field configuration space, leading to topological sectors and $\\theta$-vacua. Within this framework one investigates the resulting physical consequences, including possible resolutions of the strong $CP$ problem. A logically distinct a","authors_text":"Anthony G. Williams","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2026-07-11T12:05:21Z","title":"On the Origins of the Strong CP Problem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.10272","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":"sha256:613d751fce34de933a8b7976ce19980efbdeeb49aecbcf12784be92f8953486d","target":"record","created_at":"2026-07-14T01:20:33Z","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":"446611ff7cd27590096dc1a832f7ceb950f4b982269bb12a3ccb94af5d7927a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2026-07-11T12:05:21Z","title_canon_sha256":"836fd43b43f25b01d8cb4ec21c2b4e09f8fd5eebb4975359b4a5bceb47325c4e"},"schema_version":"1.0","source":{"id":"2607.10272","kind":"arxiv","version":1}},"canonical_sha256":"98fb98b4c6b22282d44884955244eeb744c3f3f107a9a3808c70b8e81b903104","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98fb98b4c6b22282d44884955244eeb744c3f3f107a9a3808c70b8e81b903104","first_computed_at":"2026-07-14T01:20:33.956011Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-14T01:20:33.956011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nZ7Nv5Dqts/JlEpjzYqmyeN7lgNF86/A+opOGdChAOnOAf6MCjGunqnxVqoEleXnd6ASJ5ZjDny9D9SpDnS7AA==","signature_status":"signed_v1","signed_at":"2026-07-14T01:20:33.956834Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.10272","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:613d751fce34de933a8b7976ce19980efbdeeb49aecbcf12784be92f8953486d","sha256:725d5d2f6bbc9b4214e678beceda8c49fb73425817bc923e8be9c0c07e492378"],"state_sha256":"888bf7cfc0f0b3c830e7ecb57d259dbd7dde7800816755e3c79e14ed702b0738"}