{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:UAT4UD46NZMRFJQNCXNIABM33D","short_pith_number":"pith:UAT4UD46","schema_version":"1.0","canonical_sha256":"a027ca0f9e6e5912a60d15da80059bd8c806f5ad811dc4fef319576af9f88002","source":{"kind":"arxiv","id":"1806.00943","version":2},"attestation_state":"computed","paper":{"title":"Discrete worldline instantons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Christian Schneider, Greger Torgrimsson, Ralf Sch\\\"utzhold","submitted_at":"2018-06-04T03:56:44Z","abstract_excerpt":"The semiclassical approximation of the worldline path integral is a powerful tool to study nonperturbative electron-positron pair creation in spacetime-dependent background fields. Finding solutions of the classical equations of motion, i.e. worldline instantons, is possible analytically only in special cases, and a numerical treatment is nontrivial as well. We introduce a completely general numerical approach based on an approximate evaluation of the discretized path integral that easily and robustly gives the full semiclassical pair production rate in nontrivial multi-dimensional fields, and"},"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":"1806.00943","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-06-04T03:56:44Z","cross_cats_sorted":[],"title_canon_sha256":"11260e9bbcec7d568521e5a390720bfc728f2fc4829d49da125212916b5bb87a","abstract_canon_sha256":"470f0ce0dc1d4daf355fa2710e8ea980f2c29e8949cb7d99e98211618cf896f4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:05.480209Z","signature_b64":"ECQXm1MiuPNrlyTellxxyQJ9fCe97Au0JMCVkh415eUPVbR7zlrfWeNtaJRXy0WiFgMM8bHFa0WfW/OyTSe5Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a027ca0f9e6e5912a60d15da80059bd8c806f5ad811dc4fef319576af9f88002","last_reissued_at":"2026-05-18T00:03:05.479789Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:05.479789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Discrete worldline instantons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Christian Schneider, Greger Torgrimsson, Ralf Sch\\\"utzhold","submitted_at":"2018-06-04T03:56:44Z","abstract_excerpt":"The semiclassical approximation of the worldline path integral is a powerful tool to study nonperturbative electron-positron pair creation in spacetime-dependent background fields. Finding solutions of the classical equations of motion, i.e. worldline instantons, is possible analytically only in special cases, and a numerical treatment is nontrivial as well. We introduce a completely general numerical approach based on an approximate evaluation of the discretized path integral that easily and robustly gives the full semiclassical pair production rate in nontrivial multi-dimensional fields, and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.00943","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":"1806.00943","created_at":"2026-05-18T00:03:05.479858+00:00"},{"alias_kind":"arxiv_version","alias_value":"1806.00943v2","created_at":"2026-05-18T00:03:05.479858+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.00943","created_at":"2026-05-18T00:03:05.479858+00:00"},{"alias_kind":"pith_short_12","alias_value":"UAT4UD46NZMR","created_at":"2026-05-18T12:32:56.356000+00:00"},{"alias_kind":"pith_short_16","alias_value":"UAT4UD46NZMRFJQN","created_at":"2026-05-18T12:32:56.356000+00:00"},{"alias_kind":"pith_short_8","alias_value":"UAT4UD46","created_at":"2026-05-18T12:32:56.356000+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/UAT4UD46NZMRFJQNCXNIABM33D","json":"https://pith.science/pith/UAT4UD46NZMRFJQNCXNIABM33D.json","graph_json":"https://pith.science/api/pith-number/UAT4UD46NZMRFJQNCXNIABM33D/graph.json","events_json":"https://pith.science/api/pith-number/UAT4UD46NZMRFJQNCXNIABM33D/events.json","paper":"https://pith.science/paper/UAT4UD46"},"agent_actions":{"view_html":"https://pith.science/pith/UAT4UD46NZMRFJQNCXNIABM33D","download_json":"https://pith.science/pith/UAT4UD46NZMRFJQNCXNIABM33D.json","view_paper":"https://pith.science/paper/UAT4UD46","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1806.00943&json=true","fetch_graph":"https://pith.science/api/pith-number/UAT4UD46NZMRFJQNCXNIABM33D/graph.json","fetch_events":"https://pith.science/api/pith-number/UAT4UD46NZMRFJQNCXNIABM33D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UAT4UD46NZMRFJQNCXNIABM33D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UAT4UD46NZMRFJQNCXNIABM33D/action/storage_attestation","attest_author":"https://pith.science/pith/UAT4UD46NZMRFJQNCXNIABM33D/action/author_attestation","sign_citation":"https://pith.science/pith/UAT4UD46NZMRFJQNCXNIABM33D/action/citation_signature","submit_replication":"https://pith.science/pith/UAT4UD46NZMRFJQNCXNIABM33D/action/replication_record"}},"created_at":"2026-05-18T00:03:05.479858+00:00","updated_at":"2026-05-18T00:03:05.479858+00:00"}