{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:SEI2W7GF4URVIRTN477P3JF4GR","short_pith_number":"pith:SEI2W7GF","schema_version":"1.0","canonical_sha256":"9111ab7cc5e52354466de7fefda4bc345eda8ec99a82f7f02a108612128252c0","source":{"kind":"arxiv","id":"hep-th/0202204","version":2},"attestation_state":"computed","paper":{"title":"The general-covariant and gauge-invariant theory of quantum particles in classical backgrounds","license":"","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"H. Nikolic","submitted_at":"2002-02-28T13:53:37Z","abstract_excerpt":"A new approach to the concept of particles and their production in quantum field theory is developed. A local operator describing the current of particle density is constructed for scalar and spinor fields in arbitrary gravitational and electromagnetic backgrounds. This enables one to describe particles in a local, general-covariant and gauge-invariant way. However, the current depends on the choice of a 2-point function. There is a choice that leads to the local non-conservation of the current in a gravitational or an electromagnetic background, which describes local particle production consi"},"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":"hep-th/0202204","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2002-02-28T13:53:37Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"d7f4d81000606f42ab9e60488b7651f5ae46b299b2b58a32dc0371ee6184ac70","abstract_canon_sha256":"6b292229f2ad55e967834712a36a4ea06ffa68bc26bd25e30439e62ab4dd73fe"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:36:11.119245Z","signature_b64":"3dOwAIZ/QXV5v4kUKKPrNTqmP7YyIXt6OPA5p4FO/hmoQULC/Ay+A4KwbzT3+3mW87X1zII1CX2AIfSN6mlHDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9111ab7cc5e52354466de7fefda4bc345eda8ec99a82f7f02a108612128252c0","last_reissued_at":"2026-05-18T02:36:11.118850Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:36:11.118850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The general-covariant and gauge-invariant theory of quantum particles in classical backgrounds","license":"","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"H. Nikolic","submitted_at":"2002-02-28T13:53:37Z","abstract_excerpt":"A new approach to the concept of particles and their production in quantum field theory is developed. A local operator describing the current of particle density is constructed for scalar and spinor fields in arbitrary gravitational and electromagnetic backgrounds. This enables one to describe particles in a local, general-covariant and gauge-invariant way. However, the current depends on the choice of a 2-point function. There is a choice that leads to the local non-conservation of the current in a gravitational or an electromagnetic background, which describes local particle production consi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0202204","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":"hep-th/0202204","created_at":"2026-05-18T02:36:11.118905+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0202204v2","created_at":"2026-05-18T02:36:11.118905+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0202204","created_at":"2026-05-18T02:36:11.118905+00:00"},{"alias_kind":"pith_short_12","alias_value":"SEI2W7GF4URV","created_at":"2026-05-18T12:25:51.375804+00:00"},{"alias_kind":"pith_short_16","alias_value":"SEI2W7GF4URVIRTN","created_at":"2026-05-18T12:25:51.375804+00:00"},{"alias_kind":"pith_short_8","alias_value":"SEI2W7GF","created_at":"2026-05-18T12:25:51.375804+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/SEI2W7GF4URVIRTN477P3JF4GR","json":"https://pith.science/pith/SEI2W7GF4URVIRTN477P3JF4GR.json","graph_json":"https://pith.science/api/pith-number/SEI2W7GF4URVIRTN477P3JF4GR/graph.json","events_json":"https://pith.science/api/pith-number/SEI2W7GF4URVIRTN477P3JF4GR/events.json","paper":"https://pith.science/paper/SEI2W7GF"},"agent_actions":{"view_html":"https://pith.science/pith/SEI2W7GF4URVIRTN477P3JF4GR","download_json":"https://pith.science/pith/SEI2W7GF4URVIRTN477P3JF4GR.json","view_paper":"https://pith.science/paper/SEI2W7GF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-th/0202204&json=true","fetch_graph":"https://pith.science/api/pith-number/SEI2W7GF4URVIRTN477P3JF4GR/graph.json","fetch_events":"https://pith.science/api/pith-number/SEI2W7GF4URVIRTN477P3JF4GR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SEI2W7GF4URVIRTN477P3JF4GR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SEI2W7GF4URVIRTN477P3JF4GR/action/storage_attestation","attest_author":"https://pith.science/pith/SEI2W7GF4URVIRTN477P3JF4GR/action/author_attestation","sign_citation":"https://pith.science/pith/SEI2W7GF4URVIRTN477P3JF4GR/action/citation_signature","submit_replication":"https://pith.science/pith/SEI2W7GF4URVIRTN477P3JF4GR/action/replication_record"}},"created_at":"2026-05-18T02:36:11.118905+00:00","updated_at":"2026-05-18T02:36:11.118905+00:00"}