{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:NMNZZ26PBUBITSM7BFLPQA2RHT","short_pith_number":"pith:NMNZZ26P","schema_version":"1.0","canonical_sha256":"6b1b9cebcf0d0289c99f0956f803513cc392ccd3e6b73472fb4dd8253489a43f","source":{"kind":"arxiv","id":"1507.04036","version":2},"attestation_state":"computed","paper":{"title":"Lorentz contraction of the equal-time Bethe-Salpeter amplitude in two-dimensional massless quantum electrodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Tomasz Radozycki","submitted_at":"2015-07-14T22:05:30Z","abstract_excerpt":"The Lorentz transformation properties of the equal-time bound-state Bethe-Salpeter amplitude in the two-dimensional massless quantum electrodynamics (the so called Schwinger Model) are considered. It is shown that while boosting a bound state (a `meson') this amplitude is subject to approximate Lorentz contraction. The effect is exact for large separations of constituent particles (`quarks'), while for small distances the deviation is more significant. For this phenomenon to appear, the full} function, i.e. with the inclusion of all instanton contributions has to be considered. The amplitude i"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1507.04036","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-07-14T22:05:30Z","cross_cats_sorted":[],"title_canon_sha256":"4a2328c7b14a150a440570ecb486aac7f8cd5bb9d76087037d3ff89831ec2a1d","abstract_canon_sha256":"dd600f9ca6e5153144c03a926e00ceab0082a1f646836825351fd03ed85089d2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:28:53.741832Z","signature_b64":"b+m4eaQMzIZ/r0pC4gUAFtZlx5RDNNQzQR65f/RCPDYLX0zdLRcgbRv6G0KJNhKhOlWBAPLqjYyfR3vPcEVrDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b1b9cebcf0d0289c99f0956f803513cc392ccd3e6b73472fb4dd8253489a43f","last_reissued_at":"2026-05-18T01:28:53.741167Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:28:53.741167Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Lorentz contraction of the equal-time Bethe-Salpeter amplitude in two-dimensional massless quantum electrodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Tomasz Radozycki","submitted_at":"2015-07-14T22:05:30Z","abstract_excerpt":"The Lorentz transformation properties of the equal-time bound-state Bethe-Salpeter amplitude in the two-dimensional massless quantum electrodynamics (the so called Schwinger Model) are considered. It is shown that while boosting a bound state (a `meson') this amplitude is subject to approximate Lorentz contraction. The effect is exact for large separations of constituent particles (`quarks'), while for small distances the deviation is more significant. For this phenomenon to appear, the full} function, i.e. with the inclusion of all instanton contributions has to be considered. The amplitude i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04036","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1507.04036","created_at":"2026-05-18T01:28:53.741257+00:00"},{"alias_kind":"arxiv_version","alias_value":"1507.04036v2","created_at":"2026-05-18T01:28:53.741257+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04036","created_at":"2026-05-18T01:28:53.741257+00:00"},{"alias_kind":"pith_short_12","alias_value":"NMNZZ26PBUBI","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_16","alias_value":"NMNZZ26PBUBITSM7","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_8","alias_value":"NMNZZ26P","created_at":"2026-05-18T12:29:32.376354+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT","json":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT.json","graph_json":"https://pith.science/api/pith-number/NMNZZ26PBUBITSM7BFLPQA2RHT/graph.json","events_json":"https://pith.science/api/pith-number/NMNZZ26PBUBITSM7BFLPQA2RHT/events.json","paper":"https://pith.science/paper/NMNZZ26P"},"agent_actions":{"view_html":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT","download_json":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT.json","view_paper":"https://pith.science/paper/NMNZZ26P","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1507.04036&json=true","fetch_graph":"https://pith.science/api/pith-number/NMNZZ26PBUBITSM7BFLPQA2RHT/graph.json","fetch_events":"https://pith.science/api/pith-number/NMNZZ26PBUBITSM7BFLPQA2RHT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT/action/storage_attestation","attest_author":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT/action/author_attestation","sign_citation":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT/action/citation_signature","submit_replication":"https://pith.science/pith/NMNZZ26PBUBITSM7BFLPQA2RHT/action/replication_record"}},"created_at":"2026-05-18T01:28:53.741257+00:00","updated_at":"2026-05-18T01:28:53.741257+00:00"}