{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ADH6H5PAZ7FPKZUFWL3OEZNALW","short_pith_number":"pith:ADH6H5PA","canonical_record":{"source":{"id":"2502.04092","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2025-02-06T14:04:29Z","cross_cats_sorted":["hep-ph","hep-th","nucl-th"],"title_canon_sha256":"47d1dc9d85d009b80edfa724c09d27acb264aae0fa2bc454a49c3613e89c5a49","abstract_canon_sha256":"fb3a4f5998505a35afddbf7704cdfad9eb40de7ecf5101a562d88a45572921f8"},"schema_version":"1.0"},"canonical_sha256":"00cfe3f5e0cfcaf56685b2f6e265a05db4a86c273f89030d51ca4fd07d3eee28","source":{"kind":"arxiv","id":"2502.04092","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.04092","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"arxiv_version","alias_value":"2502.04092v1","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.04092","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"pith_short_12","alias_value":"ADH6H5PAZ7FP","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"pith_short_16","alias_value":"ADH6H5PAZ7FPKZUF","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"pith_short_8","alias_value":"ADH6H5PA","created_at":"2026-07-05T10:10:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ADH6H5PAZ7FPKZUFWL3OEZNALW","target":"record","payload":{"canonical_record":{"source":{"id":"2502.04092","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2025-02-06T14:04:29Z","cross_cats_sorted":["hep-ph","hep-th","nucl-th"],"title_canon_sha256":"47d1dc9d85d009b80edfa724c09d27acb264aae0fa2bc454a49c3613e89c5a49","abstract_canon_sha256":"fb3a4f5998505a35afddbf7704cdfad9eb40de7ecf5101a562d88a45572921f8"},"schema_version":"1.0"},"canonical_sha256":"00cfe3f5e0cfcaf56685b2f6e265a05db4a86c273f89030d51ca4fd07d3eee28","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:10:34.019396Z","signature_b64":"Px6gn/x+VQNbACjmgqDvEgG3iq24+zB4/H0fJL+cHgd7hweuCEJvoQZLxSfF0EjNQIwb9j6yuL8SAfufXH49Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00cfe3f5e0cfcaf56685b2f6e265a05db4a86c273f89030d51ca4fd07d3eee28","last_reissued_at":"2026-07-05T10:10:34.018976Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:10:34.018976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.04092","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:10:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gR0DRmwIf1MQeeJS8gEYRrtd4ajtHTo9ArYPGZr6nnMcgAE+1zYM9Eib8Y+CJjdmjP0KWx0mOOKPa7g0MGhyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T21:53:42.101104Z"},"content_sha256":"8270d6d51edc0707a7696ce2d40ccd02c592c816d425469d8afb3f7113d2579d","schema_version":"1.0","event_id":"sha256:8270d6d51edc0707a7696ce2d40ccd02c592c816d425469d8afb3f7113d2579d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ADH6H5PAZ7FPKZUFWL3OEZNALW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Absence of CP Violation in the Strong Interaction: Vacuum thwarts Axion","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph","hep-th","nucl-th"],"primary_cat":"hep-lat","authors_text":"Gerrit Schierholz","submitted_at":"2025-02-06T14:04:29Z","abstract_excerpt":"QCD admits a contribution to the action, the $\\theta$ term, which potentially gives rise to nontrivial phases and violates CP. This is essentially a question of how the vacuum reacts to the $\\theta$ term. In this talk I will address the problem using new developments on the lattice. The overall solution is contrasted with the axion `solution'."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.04092","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.04092/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:10:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"grdtbCR9XG9p1/SWJdaKMH4WkowIpO44MWOZXrNysLH+7lO+Vo10c1kgDWK4EOSZrLKPwrnGVqNLWJl/OlzKCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T21:53:42.101486Z"},"content_sha256":"0ee60944724f94d77daac2a77575be094644da1ea63a72f2a7f7322c4e021e3b","schema_version":"1.0","event_id":"sha256:0ee60944724f94d77daac2a77575be094644da1ea63a72f2a7f7322c4e021e3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ADH6H5PAZ7FPKZUFWL3OEZNALW/bundle.json","state_url":"https://pith.science/pith/ADH6H5PAZ7FPKZUFWL3OEZNALW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ADH6H5PAZ7FPKZUFWL3OEZNALW/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-11T21:53:42Z","links":{"resolver":"https://pith.science/pith/ADH6H5PAZ7FPKZUFWL3OEZNALW","bundle":"https://pith.science/pith/ADH6H5PAZ7FPKZUFWL3OEZNALW/bundle.json","state":"https://pith.science/pith/ADH6H5PAZ7FPKZUFWL3OEZNALW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ADH6H5PAZ7FPKZUFWL3OEZNALW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ADH6H5PAZ7FPKZUFWL3OEZNALW","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":"fb3a4f5998505a35afddbf7704cdfad9eb40de7ecf5101a562d88a45572921f8","cross_cats_sorted":["hep-ph","hep-th","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2025-02-06T14:04:29Z","title_canon_sha256":"47d1dc9d85d009b80edfa724c09d27acb264aae0fa2bc454a49c3613e89c5a49"},"schema_version":"1.0","source":{"id":"2502.04092","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.04092","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"arxiv_version","alias_value":"2502.04092v1","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.04092","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"pith_short_12","alias_value":"ADH6H5PAZ7FP","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"pith_short_16","alias_value":"ADH6H5PAZ7FPKZUF","created_at":"2026-07-05T10:10:34Z"},{"alias_kind":"pith_short_8","alias_value":"ADH6H5PA","created_at":"2026-07-05T10:10:34Z"}],"graph_snapshots":[{"event_id":"sha256:0ee60944724f94d77daac2a77575be094644da1ea63a72f2a7f7322c4e021e3b","target":"graph","created_at":"2026-07-05T10:10:34Z","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/2502.04092/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"QCD admits a contribution to the action, the $\\theta$ term, which potentially gives rise to nontrivial phases and violates CP. This is essentially a question of how the vacuum reacts to the $\\theta$ term. In this talk I will address the problem using new developments on the lattice. The overall solution is contrasted with the axion `solution'.","authors_text":"Gerrit Schierholz","cross_cats":["hep-ph","hep-th","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2025-02-06T14:04:29Z","title":"Absence of CP Violation in the Strong Interaction: Vacuum thwarts Axion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.04092","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":"sha256:8270d6d51edc0707a7696ce2d40ccd02c592c816d425469d8afb3f7113d2579d","target":"record","created_at":"2026-07-05T10:10:34Z","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":"fb3a4f5998505a35afddbf7704cdfad9eb40de7ecf5101a562d88a45572921f8","cross_cats_sorted":["hep-ph","hep-th","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2025-02-06T14:04:29Z","title_canon_sha256":"47d1dc9d85d009b80edfa724c09d27acb264aae0fa2bc454a49c3613e89c5a49"},"schema_version":"1.0","source":{"id":"2502.04092","kind":"arxiv","version":1}},"canonical_sha256":"00cfe3f5e0cfcaf56685b2f6e265a05db4a86c273f89030d51ca4fd07d3eee28","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00cfe3f5e0cfcaf56685b2f6e265a05db4a86c273f89030d51ca4fd07d3eee28","first_computed_at":"2026-07-05T10:10:34.018976Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:10:34.018976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Px6gn/x+VQNbACjmgqDvEgG3iq24+zB4/H0fJL+cHgd7hweuCEJvoQZLxSfF0EjNQIwb9j6yuL8SAfufXH49Bw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:10:34.019396Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.04092","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8270d6d51edc0707a7696ce2d40ccd02c592c816d425469d8afb3f7113d2579d","sha256:0ee60944724f94d77daac2a77575be094644da1ea63a72f2a7f7322c4e021e3b"],"state_sha256":"a147b3683fba35f7260290e83149550bd2fd8399397204caaa1814c6649bf28d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KoesZJ8fU7nsUbqQ6esNPhstypnoMOJusCNl3Fw7mO85ZIoYG5wIloD+64+pgBFxJlRexWFVJNXuGWXz6H7zAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T21:53:42.103870Z","bundle_sha256":"bab19625a23f3292263ae90399aa9aedb1d82bdb8e0a50bba23bb6c380b76393"}}