{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:BPUEXAT33WZTEAKNR4X2S5MWQN","short_pith_number":"pith:BPUEXAT3","schema_version":"1.0","canonical_sha256":"0be84b827bddb332014d8f2fa97596834a5c4b836ea980f5bb668952e1e0bfdc","source":{"kind":"arxiv","id":"2307.14555","version":2},"attestation_state":"computed","paper":{"title":"Maxwell equations in curved spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Hyerim Noh, Jai-chan Hwang","submitted_at":"2023-07-27T00:30:00Z","abstract_excerpt":"In curved spacetime, Maxwell's equations can be expressed in forms valid in Minkowski background, with the effect of the metric (gravity) appearing as effective polarizations and magnetizations. The electric and magnetic (EM) fields depend on the observer's frame four-vector. We derive Maxwell's equations valid in general curved spacetime using the fields defined in the normal frame, the coordinate frame, and two other non-covariant methods used in the literature. By analyzing the case in the generic frame we show that the EM fields, as well as the charge and current densities, defined in non-"},"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":"2307.14555","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-07-27T00:30:00Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"8f2936551966062a930f38c8a965d2a460018cbf757854419f70655f97bbafd1","abstract_canon_sha256":"af04b427ffc070643a977cb608369d507357134e62c9f805c005242de279380c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:27:07.280595Z","signature_b64":"W/Db79j9X8yX9o4q5MkCDGrcCzb7kfymlTMLERzUiBCAYsCfQRvTOtIHpM0a7RvONEJkGH0lSsuLomkyajPlCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0be84b827bddb332014d8f2fa97596834a5c4b836ea980f5bb668952e1e0bfdc","last_reissued_at":"2026-07-05T07:27:07.280043Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:27:07.280043Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Maxwell equations in curved spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Hyerim Noh, Jai-chan Hwang","submitted_at":"2023-07-27T00:30:00Z","abstract_excerpt":"In curved spacetime, Maxwell's equations can be expressed in forms valid in Minkowski background, with the effect of the metric (gravity) appearing as effective polarizations and magnetizations. The electric and magnetic (EM) fields depend on the observer's frame four-vector. We derive Maxwell's equations valid in general curved spacetime using the fields defined in the normal frame, the coordinate frame, and two other non-covariant methods used in the literature. By analyzing the case in the generic frame we show that the EM fields, as well as the charge and current densities, defined in non-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.14555","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2307.14555/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2307.14555","created_at":"2026-07-05T07:27:07.280110+00:00"},{"alias_kind":"arxiv_version","alias_value":"2307.14555v2","created_at":"2026-07-05T07:27:07.280110+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.14555","created_at":"2026-07-05T07:27:07.280110+00:00"},{"alias_kind":"pith_short_12","alias_value":"BPUEXAT33WZT","created_at":"2026-07-05T07:27:07.280110+00:00"},{"alias_kind":"pith_short_16","alias_value":"BPUEXAT33WZTEAKN","created_at":"2026-07-05T07:27:07.280110+00:00"},{"alias_kind":"pith_short_8","alias_value":"BPUEXAT3","created_at":"2026-07-05T07:27:07.280110+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.22732","citing_title":"Beyond Acoustic Emotion Recognition: Multimodal Pathos Analysis in Political Speech Using LLM-Based and Acoustic Emotion Models","ref_index":9,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN","json":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN.json","graph_json":"https://pith.science/api/pith-number/BPUEXAT33WZTEAKNR4X2S5MWQN/graph.json","events_json":"https://pith.science/api/pith-number/BPUEXAT33WZTEAKNR4X2S5MWQN/events.json","paper":"https://pith.science/paper/BPUEXAT3"},"agent_actions":{"view_html":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN","download_json":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN.json","view_paper":"https://pith.science/paper/BPUEXAT3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2307.14555&json=true","fetch_graph":"https://pith.science/api/pith-number/BPUEXAT33WZTEAKNR4X2S5MWQN/graph.json","fetch_events":"https://pith.science/api/pith-number/BPUEXAT33WZTEAKNR4X2S5MWQN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN/action/storage_attestation","attest_author":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN/action/author_attestation","sign_citation":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN/action/citation_signature","submit_replication":"https://pith.science/pith/BPUEXAT33WZTEAKNR4X2S5MWQN/action/replication_record"}},"created_at":"2026-07-05T07:27:07.280110+00:00","updated_at":"2026-07-05T07:27:07.280110+00:00"}