{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:A6CBYE7GOKJJ745OJLHY5357SY","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":"55c1d088d2a683d7211685c6963cb60a7b9cac8ad55408f43ac60694126c7bce","cross_cats_sorted":["hep-th"],"license":"","primary_cat":"hep-ph","submitted_at":"1998-04-24T07:06:53Z","title_canon_sha256":"b3f42fee2132f6ece24c7b30beae1051c77c4a0b5294cefc42f256ee3975e7e4"},"schema_version":"1.0","source":{"id":"hep-ph/9804385","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9804385","created_at":"2026-07-04T15:47:38Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9804385v2","created_at":"2026-07-04T15:47:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9804385","created_at":"2026-07-04T15:47:38Z"},{"alias_kind":"pith_short_12","alias_value":"A6CBYE7GOKJJ","created_at":"2026-07-04T15:47:38Z"},{"alias_kind":"pith_short_16","alias_value":"A6CBYE7GOKJJ745O","created_at":"2026-07-04T15:47:38Z"},{"alias_kind":"pith_short_8","alias_value":"A6CBYE7G","created_at":"2026-07-04T15:47:38Z"}],"graph_snapshots":[{"event_id":"sha256:a2986097d12192e2fff9cbdc1a11838c3804e8bfadfcd13305a1347d78a54a2f","target":"graph","created_at":"2026-07-04T15:47:38Z","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/hep-ph/9804385/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the dimensionally regularized fermion propagator Dyson-Schwinger equation in quenched nonperturbative QED. We work in arbitrary covariant gauge and perform nonperturbative renormalization numerically. The nonperturbative fermion propagator is solved in D = 4 - 2 * epsilon dimensional Euclidean space for a large number of values of epsilon. Results for D=4 dimensions are then obtained by extrapolation to epsilon = 0. Here we present results using the Curtis-Penningon fermion-photon proper vertex for two values of the coupling, namely alpha=0.6 and alpha=1.5, and compare these to previo","authors_text":"Andreas W. Schreiber, Anthony G. Williams (University of Adelaide, Australia), Tom Sizer","cross_cats":["hep-th"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1998-04-24T07:06:53Z","title":"Dimensionally regularized study of nonperturbative quenched QED"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9804385","kind":"arxiv","version":2},"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":"sha256:69354adbb4ce4871c6982587785f865c1a9f584a25b6e232c1aeb947375d0bf5","target":"record","created_at":"2026-07-04T15:47:38Z","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":"55c1d088d2a683d7211685c6963cb60a7b9cac8ad55408f43ac60694126c7bce","cross_cats_sorted":["hep-th"],"license":"","primary_cat":"hep-ph","submitted_at":"1998-04-24T07:06:53Z","title_canon_sha256":"b3f42fee2132f6ece24c7b30beae1051c77c4a0b5294cefc42f256ee3975e7e4"},"schema_version":"1.0","source":{"id":"hep-ph/9804385","kind":"arxiv","version":2}},"canonical_sha256":"07841c13e672929ff3ae4acf8eefbf961c4fe9297920bf10a584b9fe2de0d9df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"07841c13e672929ff3ae4acf8eefbf961c4fe9297920bf10a584b9fe2de0d9df","first_computed_at":"2026-07-04T15:47:38.550369Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:47:38.550369Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HiC6y6fJm1ju4EprnejWCBBmLJaj9J9XSqLZ02UsUnpRGeq9xW0MIyTTzpokaLmmZLq5JU85OqTYY55L/NH3BA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:47:38.550734Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9804385","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69354adbb4ce4871c6982587785f865c1a9f584a25b6e232c1aeb947375d0bf5","sha256:a2986097d12192e2fff9cbdc1a11838c3804e8bfadfcd13305a1347d78a54a2f"],"state_sha256":"d4af17bcc7c2a07657c470345adb34d5d962b38e8fa7a405ecb4d8880264b281"}