{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:5AGT7OIMBYPMRE4RKERD2EX5H7","short_pith_number":"pith:5AGT7OIM","canonical_record":{"source":{"id":"1610.03315","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-10-11T13:03:44Z","cross_cats_sorted":[],"title_canon_sha256":"0c2d4e6dff709c670179eaf2f2bff5f5bc52980ff6dec6ee206c2989c1074aa2","abstract_canon_sha256":"84684222250c836db4bb50d9a4fd2fe08011eb7696ba7aa4479dc817ff1dbe59"},"schema_version":"1.0"},"canonical_sha256":"e80d3fb90c0e1ec8939151223d12fd3ffe544361f85a282313d23f146df02ef4","source":{"kind":"arxiv","id":"1610.03315","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.03315","created_at":"2026-05-18T00:12:57Z"},{"alias_kind":"arxiv_version","alias_value":"1610.03315v4","created_at":"2026-05-18T00:12:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.03315","created_at":"2026-05-18T00:12:57Z"},{"alias_kind":"pith_short_12","alias_value":"5AGT7OIMBYPM","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"5AGT7OIMBYPMRE4R","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"5AGT7OIM","created_at":"2026-05-18T12:29:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:5AGT7OIMBYPMRE4RKERD2EX5H7","target":"record","payload":{"canonical_record":{"source":{"id":"1610.03315","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-10-11T13:03:44Z","cross_cats_sorted":[],"title_canon_sha256":"0c2d4e6dff709c670179eaf2f2bff5f5bc52980ff6dec6ee206c2989c1074aa2","abstract_canon_sha256":"84684222250c836db4bb50d9a4fd2fe08011eb7696ba7aa4479dc817ff1dbe59"},"schema_version":"1.0"},"canonical_sha256":"e80d3fb90c0e1ec8939151223d12fd3ffe544361f85a282313d23f146df02ef4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:12:57.087196Z","signature_b64":"AigwoJM8wwZGa8KiuEKxc+lnfTI6koCYlAascYBEeT9Cl95XRr+BVVMhlOfVzDNKG+4+wQl0GiP8MgIMjCmLCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e80d3fb90c0e1ec8939151223d12fd3ffe544361f85a282313d23f146df02ef4","last_reissued_at":"2026-05-18T00:12:57.086651Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:12:57.086651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.03315","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:12:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rhcnHgds9EhOcQKzRt9HguHEGR4VEDr8b5oLIEwzxCIn17nwbXbvwYI1/y4dcD/a2fEWvUvqEZes8efKNDvgCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T01:47:20.260034Z"},"content_sha256":"652730e9af99cdfd58c07320bdbabd73731a1cc7a49450c51a11259ca3a4a0c5","schema_version":"1.0","event_id":"sha256:652730e9af99cdfd58c07320bdbabd73731a1cc7a49450c51a11259ca3a4a0c5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:5AGT7OIMBYPMRE4RKERD2EX5H7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lorentz-violating neutral-pion decays in isotropic modified Maxwell theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"F.R. Klinkhamer","submitted_at":"2016-10-11T13:03:44Z","abstract_excerpt":"We consider an extension of the Standard Model with isotropic nonbirefringent Lorentz violation in the photon sector and restrict the discussion to the case of a \"fast\" photon with a phase velocity larger than the maximum attainable velocity of the quarks and leptons. With our conventions, this case corresponds to a negative Lorentz-violating parameter $\\kappa$ in the action. The decay rate of a neutral pion into two nonstandard photons is calculated as a function of the 3-momentum of the initial pion and the negative Lorentz-violating parameter $\\kappa$ of the final photons."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.03315","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T00:12:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TgMg9FHbqnXDe7eGMZr+I7WpuPIL9m90LFGSWGYvqam8lCV/ibUDTvqUqLzLVYc/NbU5pXrxcDs7wO1xenAUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T01:47:20.260908Z"},"content_sha256":"2c4d9f4c48b3efd260eeb4df6e4625a1a085900ddd75344d1b393d22e9382678","schema_version":"1.0","event_id":"sha256:2c4d9f4c48b3efd260eeb4df6e4625a1a085900ddd75344d1b393d22e9382678"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5AGT7OIMBYPMRE4RKERD2EX5H7/bundle.json","state_url":"https://pith.science/pith/5AGT7OIMBYPMRE4RKERD2EX5H7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5AGT7OIMBYPMRE4RKERD2EX5H7/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":"2026-08-19T01:47:20Z","links":{"resolver":"https://pith.science/pith/5AGT7OIMBYPMRE4RKERD2EX5H7","bundle":"https://pith.science/pith/5AGT7OIMBYPMRE4RKERD2EX5H7/bundle.json","state":"https://pith.science/pith/5AGT7OIMBYPMRE4RKERD2EX5H7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5AGT7OIMBYPMRE4RKERD2EX5H7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:5AGT7OIMBYPMRE4RKERD2EX5H7","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":"84684222250c836db4bb50d9a4fd2fe08011eb7696ba7aa4479dc817ff1dbe59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-10-11T13:03:44Z","title_canon_sha256":"0c2d4e6dff709c670179eaf2f2bff5f5bc52980ff6dec6ee206c2989c1074aa2"},"schema_version":"1.0","source":{"id":"1610.03315","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.03315","created_at":"2026-05-18T00:12:57Z"},{"alias_kind":"arxiv_version","alias_value":"1610.03315v4","created_at":"2026-05-18T00:12:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.03315","created_at":"2026-05-18T00:12:57Z"},{"alias_kind":"pith_short_12","alias_value":"5AGT7OIMBYPM","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"5AGT7OIMBYPMRE4R","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"5AGT7OIM","created_at":"2026-05-18T12:29:58Z"}],"graph_snapshots":[{"event_id":"sha256:2c4d9f4c48b3efd260eeb4df6e4625a1a085900ddd75344d1b393d22e9382678","target":"graph","created_at":"2026-05-18T00:12:57Z","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 consider an extension of the Standard Model with isotropic nonbirefringent Lorentz violation in the photon sector and restrict the discussion to the case of a \"fast\" photon with a phase velocity larger than the maximum attainable velocity of the quarks and leptons. With our conventions, this case corresponds to a negative Lorentz-violating parameter $\\kappa$ in the action. The decay rate of a neutral pion into two nonstandard photons is calculated as a function of the 3-momentum of the initial pion and the negative Lorentz-violating parameter $\\kappa$ of the final photons.","authors_text":"F.R. Klinkhamer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-10-11T13:03:44Z","title":"Lorentz-violating neutral-pion decays in isotropic modified Maxwell theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.03315","kind":"arxiv","version":4},"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":"sha256:652730e9af99cdfd58c07320bdbabd73731a1cc7a49450c51a11259ca3a4a0c5","target":"record","created_at":"2026-05-18T00:12:57Z","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":"84684222250c836db4bb50d9a4fd2fe08011eb7696ba7aa4479dc817ff1dbe59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-10-11T13:03:44Z","title_canon_sha256":"0c2d4e6dff709c670179eaf2f2bff5f5bc52980ff6dec6ee206c2989c1074aa2"},"schema_version":"1.0","source":{"id":"1610.03315","kind":"arxiv","version":4}},"canonical_sha256":"e80d3fb90c0e1ec8939151223d12fd3ffe544361f85a282313d23f146df02ef4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e80d3fb90c0e1ec8939151223d12fd3ffe544361f85a282313d23f146df02ef4","first_computed_at":"2026-05-18T00:12:57.086651Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:57.086651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AigwoJM8wwZGa8KiuEKxc+lnfTI6koCYlAascYBEeT9Cl95XRr+BVVMhlOfVzDNKG+4+wQl0GiP8MgIMjCmLCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:57.087196Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.03315","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:652730e9af99cdfd58c07320bdbabd73731a1cc7a49450c51a11259ca3a4a0c5","sha256:2c4d9f4c48b3efd260eeb4df6e4625a1a085900ddd75344d1b393d22e9382678"],"state_sha256":"05af345ef481ccd8dfeb31b364c610add8434173f7388d661c0e9cd2e2cc170e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5WUARyPtq0sJTp41WSQ7c9QmkZDZtzq9JVRmZuOLF9WK2UPe/3ipLcJG8wsu5F2e/kWoKVc/kLzl82GX5XleBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T01:47:20.268642Z","bundle_sha256":"e4381d4eb1bbd0f6f2c932ed687aa76b231341ed4d93145707804450875268ac"}}