{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:ADDL6EPX6EPHJQC6JFRNBX7BVD","short_pith_number":"pith:ADDL6EPX","canonical_record":{"source":{"id":"2412.19456","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-12-27T04:48:38Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"28724ca5a4558b1fe7cc64dc9bff1824465b464b1140bc1de280fdf6b225d942","abstract_canon_sha256":"705840749530a1a206c128da5f582891462ba0c2a645e459fa7a17c4a86dc40b"},"schema_version":"1.0"},"canonical_sha256":"00c6bf11f7f11e74c05e4962d0dfe1a8d56d94a08610a2eca3e2c7b41d1e97ce","source":{"kind":"arxiv","id":"2412.19456","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.19456","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"arxiv_version","alias_value":"2412.19456v1","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.19456","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"pith_short_12","alias_value":"ADDL6EPX6EPH","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"pith_short_16","alias_value":"ADDL6EPX6EPHJQC6","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"pith_short_8","alias_value":"ADDL6EPX","created_at":"2026-07-05T09:54:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:ADDL6EPX6EPHJQC6JFRNBX7BVD","target":"record","payload":{"canonical_record":{"source":{"id":"2412.19456","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-12-27T04:48:38Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"28724ca5a4558b1fe7cc64dc9bff1824465b464b1140bc1de280fdf6b225d942","abstract_canon_sha256":"705840749530a1a206c128da5f582891462ba0c2a645e459fa7a17c4a86dc40b"},"schema_version":"1.0"},"canonical_sha256":"00c6bf11f7f11e74c05e4962d0dfe1a8d56d94a08610a2eca3e2c7b41d1e97ce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:54:35.935294Z","signature_b64":"1QfdFJRw51YQ7j0mYAp7Cnlq5dGdDLT2JSN/GKyBuLF2WL9EqGNwLA1RC8ZBut0DlzHF2zvjBYqPhY3+L9+QBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00c6bf11f7f11e74c05e4962d0dfe1a8d56d94a08610a2eca3e2c7b41d1e97ce","last_reissued_at":"2026-07-05T09:54:35.934836Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:54:35.934836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.19456","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":"2026-07-05T09:54:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r0UcbKQ9InER2qwpXPoQafDmWREDuuk7Usr1l7cLIFiQgA1f1Br8HYhV1PCOhopTlHbKBGigtnG34csOd8DQCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T17:44:28.206427Z"},"content_sha256":"81f6590bb1868be8febb2596ca9fbda257d02053f2216e0059c95dba92bbd731","schema_version":"1.0","event_id":"sha256:81f6590bb1868be8febb2596ca9fbda257d02053f2216e0059c95dba92bbd731"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:ADDL6EPX6EPHJQC6JFRNBX7BVD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Domain walls in Nelson-Barr axion model","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ph","authors_text":"Kai Murai, Kazunori Nakayama","submitted_at":"2024-12-27T04:48:38Z","abstract_excerpt":"We explore a concrete realization of a Nelson-Barr model addressing the strong CP problem with suppressed unfavorable corrections. This model has a scalar field that spontaneously breaks discrete symmetry, and its phase component can naturally be relatively light, which we call the Nelson-Barr axion. It has both a tree-level potential and the QCD instanton-induced potential like the QCD axion, each minimizing at the CP-conserving point. While one potential leads to domain wall formation, the other works as a potential bias. This model provides a natural setup for the collapse of the axion doma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.19456","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/2412.19456/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":"2026-07-05T09:54:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L5cK/5LoUalkfNd1m5DFQbd74omLUEPFOU9nU0UfnwRCeN2UiXurSH7C5oeiDgLwAMgGdmmt4PiqHtveIBjZBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T17:44:28.206933Z"},"content_sha256":"6835b9b20e3737690926372dd973a2230669e66b93e432a76f14e84cece03055","schema_version":"1.0","event_id":"sha256:6835b9b20e3737690926372dd973a2230669e66b93e432a76f14e84cece03055"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ADDL6EPX6EPHJQC6JFRNBX7BVD/bundle.json","state_url":"https://pith.science/pith/ADDL6EPX6EPHJQC6JFRNBX7BVD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ADDL6EPX6EPHJQC6JFRNBX7BVD/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":"2026-08-15T17:44:28Z","links":{"resolver":"https://pith.science/pith/ADDL6EPX6EPHJQC6JFRNBX7BVD","bundle":"https://pith.science/pith/ADDL6EPX6EPHJQC6JFRNBX7BVD/bundle.json","state":"https://pith.science/pith/ADDL6EPX6EPHJQC6JFRNBX7BVD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ADDL6EPX6EPHJQC6JFRNBX7BVD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:ADDL6EPX6EPHJQC6JFRNBX7BVD","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":"705840749530a1a206c128da5f582891462ba0c2a645e459fa7a17c4a86dc40b","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-12-27T04:48:38Z","title_canon_sha256":"28724ca5a4558b1fe7cc64dc9bff1824465b464b1140bc1de280fdf6b225d942"},"schema_version":"1.0","source":{"id":"2412.19456","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.19456","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"arxiv_version","alias_value":"2412.19456v1","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.19456","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"pith_short_12","alias_value":"ADDL6EPX6EPH","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"pith_short_16","alias_value":"ADDL6EPX6EPHJQC6","created_at":"2026-07-05T09:54:35Z"},{"alias_kind":"pith_short_8","alias_value":"ADDL6EPX","created_at":"2026-07-05T09:54:35Z"}],"graph_snapshots":[{"event_id":"sha256:6835b9b20e3737690926372dd973a2230669e66b93e432a76f14e84cece03055","target":"graph","created_at":"2026-07-05T09:54:35Z","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/2412.19456/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We explore a concrete realization of a Nelson-Barr model addressing the strong CP problem with suppressed unfavorable corrections. This model has a scalar field that spontaneously breaks discrete symmetry, and its phase component can naturally be relatively light, which we call the Nelson-Barr axion. It has both a tree-level potential and the QCD instanton-induced potential like the QCD axion, each minimizing at the CP-conserving point. While one potential leads to domain wall formation, the other works as a potential bias. This model provides a natural setup for the collapse of the axion doma","authors_text":"Kai Murai, Kazunori Nakayama","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-12-27T04:48:38Z","title":"Domain walls in Nelson-Barr axion model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.19456","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":"sha256:81f6590bb1868be8febb2596ca9fbda257d02053f2216e0059c95dba92bbd731","target":"record","created_at":"2026-07-05T09:54:35Z","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":"705840749530a1a206c128da5f582891462ba0c2a645e459fa7a17c4a86dc40b","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-12-27T04:48:38Z","title_canon_sha256":"28724ca5a4558b1fe7cc64dc9bff1824465b464b1140bc1de280fdf6b225d942"},"schema_version":"1.0","source":{"id":"2412.19456","kind":"arxiv","version":1}},"canonical_sha256":"00c6bf11f7f11e74c05e4962d0dfe1a8d56d94a08610a2eca3e2c7b41d1e97ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00c6bf11f7f11e74c05e4962d0dfe1a8d56d94a08610a2eca3e2c7b41d1e97ce","first_computed_at":"2026-07-05T09:54:35.934836Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:54:35.934836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1QfdFJRw51YQ7j0mYAp7Cnlq5dGdDLT2JSN/GKyBuLF2WL9EqGNwLA1RC8ZBut0DlzHF2zvjBYqPhY3+L9+QBA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:54:35.935294Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.19456","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81f6590bb1868be8febb2596ca9fbda257d02053f2216e0059c95dba92bbd731","sha256:6835b9b20e3737690926372dd973a2230669e66b93e432a76f14e84cece03055"],"state_sha256":"da2611c6d5adcfe54a8fa265b27c6dc1564376ec3814486c2de8e24b69b9fa9b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KsadWq7bz3ZaGqtNUvBandu7tFF8Cl+/QOXk++WPhxuiZzT8pCE5isjLmZVv+fvYDlLNOR+d2PO+aZPN0DE9CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T17:44:28.212206Z","bundle_sha256":"0eb43253e8c7024afbec586065597fb734dbc3031217c0022999628c7e42940d"}}