{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:NPUGZ6CLVX2BQEWAMTAIPOM3YD","short_pith_number":"pith:NPUGZ6CL","schema_version":"1.0","canonical_sha256":"6be86cf84badf41812c064c087b99bc0ea0b181a539a719f73bf4510f0a5a4b1","source":{"kind":"arxiv","id":"1804.09523","version":1},"attestation_state":"computed","paper":{"title":"Construction of test Maxwell fields with scale symmetry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Takahisa Igata","submitted_at":"2018-04-25T12:56:34Z","abstract_excerpt":"Geometrical symmetry in a spacetime can generate test solutions to the Maxwell equation. We demonstrate that the source-free Maxwell equation is satisfied by any generator of spacetime self-similarity---a proper homothetic vector---identified with a vector potential of the Maxwell theory. The test fields obtained in this way share the scale symmetry of the background."},"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":"1804.09523","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-25T12:56:34Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"f1b8c392e56300cd7121d2304f18093630da2bbed7b4c8b73d67bc6ea06ec16b","abstract_canon_sha256":"939198601b9afe246fa528388647a4def86d7d77d87356646bdd014d5914cd0b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:31.567040Z","signature_b64":"pi0ZHmxeF9mf5zDzhq4tzm9xQjVnCQiXACiPWsg5XUHUFsIExuYXWD+SjGWbgfJsDW9+UWX8NL9mYAfk9+v6DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6be86cf84badf41812c064c087b99bc0ea0b181a539a719f73bf4510f0a5a4b1","last_reissued_at":"2026-05-18T00:17:31.566568Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:31.566568Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Construction of test Maxwell fields with scale symmetry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Takahisa Igata","submitted_at":"2018-04-25T12:56:34Z","abstract_excerpt":"Geometrical symmetry in a spacetime can generate test solutions to the Maxwell equation. We demonstrate that the source-free Maxwell equation is satisfied by any generator of spacetime self-similarity---a proper homothetic vector---identified with a vector potential of the Maxwell theory. The test fields obtained in this way share the scale symmetry of the background."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.09523","kind":"arxiv","version":1},"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":"1804.09523","created_at":"2026-05-18T00:17:31.566640+00:00"},{"alias_kind":"arxiv_version","alias_value":"1804.09523v1","created_at":"2026-05-18T00:17:31.566640+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.09523","created_at":"2026-05-18T00:17:31.566640+00:00"},{"alias_kind":"pith_short_12","alias_value":"NPUGZ6CLVX2B","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_16","alias_value":"NPUGZ6CLVX2BQEWA","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_8","alias_value":"NPUGZ6CL","created_at":"2026-05-18T12:32:40.477152+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/NPUGZ6CLVX2BQEWAMTAIPOM3YD","json":"https://pith.science/pith/NPUGZ6CLVX2BQEWAMTAIPOM3YD.json","graph_json":"https://pith.science/api/pith-number/NPUGZ6CLVX2BQEWAMTAIPOM3YD/graph.json","events_json":"https://pith.science/api/pith-number/NPUGZ6CLVX2BQEWAMTAIPOM3YD/events.json","paper":"https://pith.science/paper/NPUGZ6CL"},"agent_actions":{"view_html":"https://pith.science/pith/NPUGZ6CLVX2BQEWAMTAIPOM3YD","download_json":"https://pith.science/pith/NPUGZ6CLVX2BQEWAMTAIPOM3YD.json","view_paper":"https://pith.science/paper/NPUGZ6CL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1804.09523&json=true","fetch_graph":"https://pith.science/api/pith-number/NPUGZ6CLVX2BQEWAMTAIPOM3YD/graph.json","fetch_events":"https://pith.science/api/pith-number/NPUGZ6CLVX2BQEWAMTAIPOM3YD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NPUGZ6CLVX2BQEWAMTAIPOM3YD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NPUGZ6CLVX2BQEWAMTAIPOM3YD/action/storage_attestation","attest_author":"https://pith.science/pith/NPUGZ6CLVX2BQEWAMTAIPOM3YD/action/author_attestation","sign_citation":"https://pith.science/pith/NPUGZ6CLVX2BQEWAMTAIPOM3YD/action/citation_signature","submit_replication":"https://pith.science/pith/NPUGZ6CLVX2BQEWAMTAIPOM3YD/action/replication_record"}},"created_at":"2026-05-18T00:17:31.566640+00:00","updated_at":"2026-05-18T00:17:31.566640+00:00"}