{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:NWYAGSIEFQMLFHK7G6XIRJGVFV","short_pith_number":"pith:NWYAGSIE","canonical_record":{"source":{"id":"2607.14874","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"hep-lat","submitted_at":"2026-07-16T11:45:23Z","cross_cats_sorted":["math-ph","math.MP","quant-ph"],"title_canon_sha256":"1504a4b3d0c8cddcba526f65e6684ba5a66ee52662d06bc9f1c98ff22ee45060","abstract_canon_sha256":"6079529d74098dca6a37a7332649b825c18c6ebdf03332eec756da0f906ae663"},"schema_version":"1.0"},"canonical_sha256":"6db00349042c18b29d5f37ae88a4d52d5154a4a99ba8345dc27149f1db8aca81","source":{"kind":"arxiv","id":"2607.14874","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14874","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14874v1","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14874","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"pith_short_12","alias_value":"NWYAGSIEFQML","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"pith_short_16","alias_value":"NWYAGSIEFQMLFHK7","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"pith_short_8","alias_value":"NWYAGSIE","created_at":"2026-07-17T01:21:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:NWYAGSIEFQMLFHK7G6XIRJGVFV","target":"record","payload":{"canonical_record":{"source":{"id":"2607.14874","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"hep-lat","submitted_at":"2026-07-16T11:45:23Z","cross_cats_sorted":["math-ph","math.MP","quant-ph"],"title_canon_sha256":"1504a4b3d0c8cddcba526f65e6684ba5a66ee52662d06bc9f1c98ff22ee45060","abstract_canon_sha256":"6079529d74098dca6a37a7332649b825c18c6ebdf03332eec756da0f906ae663"},"schema_version":"1.0"},"canonical_sha256":"6db00349042c18b29d5f37ae88a4d52d5154a4a99ba8345dc27149f1db8aca81","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-17T01:21:56.582959Z","signature_b64":"Xz2FOrD+4fgCtdGeqEOYVfFazalGAlj0Wb/UtAyNRVMFwnnVwGP4jpCehXr9FfBCEVt9S0haELkLvbz5kikqCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6db00349042c18b29d5f37ae88a4d52d5154a4a99ba8345dc27149f1db8aca81","last_reissued_at":"2026-07-17T01:21:56.582214Z","signature_status":"signed_v1","first_computed_at":"2026-07-17T01:21:56.582214Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.14874","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":"2026-07-17T01:21:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PAfhqeXDnxM3XphJMJwbLuoQuQHI6nvc7lg2lwd2HBLmAHEGhraXltrptczk7SW+0MqRCkF/A8F8OWSO1HDXCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T08:37:51.777236Z"},"content_sha256":"714bbfd45f7c473fb6b0ad9bd8f37ac7c1480e14b98076f02b08c338f7a012cb","schema_version":"1.0","event_id":"sha256:714bbfd45f7c473fb6b0ad9bd8f37ac7c1480e14b98076f02b08c338f7a012cb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:NWYAGSIEFQMLFHK7G6XIRJGVFV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fermion-doubling problem in Chiral discretizations of Quantum field theory: Definitive proof, Fixing, and Computation of two-point correlation function","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["math-ph","math.MP","quant-ph"],"primary_cat":"hep-lat","authors_text":"Dogukan Bakircioglu, Pablo Arnault","submitted_at":"2026-07-16T11:45:23Z","abstract_excerpt":"We give the definitive proof that the Dirac Quantum Cellular Automaton (QCA) used for both quantum simulation and algorithmic foundations of Quantum Field Theory (QFT), and especially of Quantum Electrodynamics (QED), as put forward in References https://doi.org/10.1007/s11128-019-2555-4 and https://doi.org/10.22331/q-2023-11-08-1179, does exhibit Fermion Doubling (FD), albeit thrice as less severe as discrete-time standard Lattice Gauge Theories (LGTs) -- as shown in Reference arXiv:2505.07900 -- , which are naive regarding the spacetime discretization of differential operators acting on ferm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14874","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/2607.14874/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":"2026-07-17T01:21:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1yv1hUhCJTGZMp0kzsfYkOQADRWgaQGXr+KfsPwY5tpI1OqcCOlJPN//HFNGuVOZg8HaTGkNMiZwbce64AE6Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T08:37:51.777774Z"},"content_sha256":"a610117ea9dba33da9f04e87cbf7db1aade67c449bb1c8727de62aa2b1fe3030","schema_version":"1.0","event_id":"sha256:a610117ea9dba33da9f04e87cbf7db1aade67c449bb1c8727de62aa2b1fe3030"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NWYAGSIEFQMLFHK7G6XIRJGVFV/bundle.json","state_url":"https://pith.science/pith/NWYAGSIEFQMLFHK7G6XIRJGVFV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NWYAGSIEFQMLFHK7G6XIRJGVFV/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":"2026-08-10T08:37:51Z","links":{"resolver":"https://pith.science/pith/NWYAGSIEFQMLFHK7G6XIRJGVFV","bundle":"https://pith.science/pith/NWYAGSIEFQMLFHK7G6XIRJGVFV/bundle.json","state":"https://pith.science/pith/NWYAGSIEFQMLFHK7G6XIRJGVFV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NWYAGSIEFQMLFHK7G6XIRJGVFV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:NWYAGSIEFQMLFHK7G6XIRJGVFV","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":"6079529d74098dca6a37a7332649b825c18c6ebdf03332eec756da0f906ae663","cross_cats_sorted":["math-ph","math.MP","quant-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"hep-lat","submitted_at":"2026-07-16T11:45:23Z","title_canon_sha256":"1504a4b3d0c8cddcba526f65e6684ba5a66ee52662d06bc9f1c98ff22ee45060"},"schema_version":"1.0","source":{"id":"2607.14874","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14874","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14874v1","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14874","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"pith_short_12","alias_value":"NWYAGSIEFQML","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"pith_short_16","alias_value":"NWYAGSIEFQMLFHK7","created_at":"2026-07-17T01:21:56Z"},{"alias_kind":"pith_short_8","alias_value":"NWYAGSIE","created_at":"2026-07-17T01:21:56Z"}],"graph_snapshots":[{"event_id":"sha256:a610117ea9dba33da9f04e87cbf7db1aade67c449bb1c8727de62aa2b1fe3030","target":"graph","created_at":"2026-07-17T01:21:56Z","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/2607.14874/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We give the definitive proof that the Dirac Quantum Cellular Automaton (QCA) used for both quantum simulation and algorithmic foundations of Quantum Field Theory (QFT), and especially of Quantum Electrodynamics (QED), as put forward in References https://doi.org/10.1007/s11128-019-2555-4 and https://doi.org/10.22331/q-2023-11-08-1179, does exhibit Fermion Doubling (FD), albeit thrice as less severe as discrete-time standard Lattice Gauge Theories (LGTs) -- as shown in Reference arXiv:2505.07900 -- , which are naive regarding the spacetime discretization of differential operators acting on ferm","authors_text":"Dogukan Bakircioglu, Pablo Arnault","cross_cats":["math-ph","math.MP","quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"hep-lat","submitted_at":"2026-07-16T11:45:23Z","title":"Fermion-doubling problem in Chiral discretizations of Quantum field theory: Definitive proof, Fixing, and Computation of two-point correlation function"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14874","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":"sha256:714bbfd45f7c473fb6b0ad9bd8f37ac7c1480e14b98076f02b08c338f7a012cb","target":"record","created_at":"2026-07-17T01:21:56Z","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":"6079529d74098dca6a37a7332649b825c18c6ebdf03332eec756da0f906ae663","cross_cats_sorted":["math-ph","math.MP","quant-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"hep-lat","submitted_at":"2026-07-16T11:45:23Z","title_canon_sha256":"1504a4b3d0c8cddcba526f65e6684ba5a66ee52662d06bc9f1c98ff22ee45060"},"schema_version":"1.0","source":{"id":"2607.14874","kind":"arxiv","version":1}},"canonical_sha256":"6db00349042c18b29d5f37ae88a4d52d5154a4a99ba8345dc27149f1db8aca81","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6db00349042c18b29d5f37ae88a4d52d5154a4a99ba8345dc27149f1db8aca81","first_computed_at":"2026-07-17T01:21:56.582214Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-17T01:21:56.582214Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Xz2FOrD+4fgCtdGeqEOYVfFazalGAlj0Wb/UtAyNRVMFwnnVwGP4jpCehXr9FfBCEVt9S0haELkLvbz5kikqCQ==","signature_status":"signed_v1","signed_at":"2026-07-17T01:21:56.582959Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.14874","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:714bbfd45f7c473fb6b0ad9bd8f37ac7c1480e14b98076f02b08c338f7a012cb","sha256:a610117ea9dba33da9f04e87cbf7db1aade67c449bb1c8727de62aa2b1fe3030"],"state_sha256":"db66a686dad78c49784828fde6b41d2aff0cd6cf1a0550182ba835b355542c7d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XWnA0ENKXfLeoEdsuMDWjMLc/CBQNuISEQm5EBBL5pIgXqiqY+v1nPQKJO0365Pk4Bo9Mphy89XD8ibDKU66BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T08:37:51.782816Z","bundle_sha256":"0abe427fde36f7d72006aa5b0b659b3ddf282382095045151c60c232ec9b1c51"}}