{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:K7QXM7XRDL7JJWAHUT7FRC5CJD","short_pith_number":"pith:K7QXM7XR","schema_version":"1.0","canonical_sha256":"57e1767ef11afe94d807a4fe588ba248cb472481dbd66ef77662653c711d84bf","source":{"kind":"arxiv","id":"1504.02710","version":3},"attestation_state":"computed","paper":{"title":"Geometry of Killing spinors in neutral signature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","math-ph","math.MP"],"primary_cat":"hep-th","authors_text":"Dietmar Klemm, Masato Nozawa","submitted_at":"2015-04-10T15:27:56Z","abstract_excerpt":"We classify the supersymmetric solutions of minimal $N=2$ gauged supergravity in four dimensions with neutral signature. They are distinguished according to the sign of the cosmological constant and whether the vector field constructed as a bilinear of the Killing spinor is null or non-null. In neutral signature the bilinear vector field can be spacelike, which is a new feature not arising in Lorentzian signature. In the $\\Lambda<0$ non-null case, the canonical form of the metric is described by a fibration over a three-dimensional base space that has $\\text{U}(1)$ holonomy with torsion. We fi"},"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":"1504.02710","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-04-10T15:27:56Z","cross_cats_sorted":["gr-qc","math-ph","math.MP"],"title_canon_sha256":"c0dbf9fc7ab55c3589d5338d756508aa1ec757b382cbb6ba59f5f98abd57e1e1","abstract_canon_sha256":"93ad74fe581c67a3a601ef860fb819e2c6e71bd7187755a5b0601a89fa6364a4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:32:29.802954Z","signature_b64":"LL1CUWQ3gN+I8OvUAjyFzE9pJHk+uk1DdGsr/IpKVx3Mn6uAcq+U3f+ykkhYF6sEZ5WaxyUco9c4N3e6QbKzAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57e1767ef11afe94d807a4fe588ba248cb472481dbd66ef77662653c711d84bf","last_reissued_at":"2026-05-18T01:32:29.802361Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:32:29.802361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Geometry of Killing spinors in neutral signature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","math-ph","math.MP"],"primary_cat":"hep-th","authors_text":"Dietmar Klemm, Masato Nozawa","submitted_at":"2015-04-10T15:27:56Z","abstract_excerpt":"We classify the supersymmetric solutions of minimal $N=2$ gauged supergravity in four dimensions with neutral signature. They are distinguished according to the sign of the cosmological constant and whether the vector field constructed as a bilinear of the Killing spinor is null or non-null. In neutral signature the bilinear vector field can be spacelike, which is a new feature not arising in Lorentzian signature. In the $\\Lambda<0$ non-null case, the canonical form of the metric is described by a fibration over a three-dimensional base space that has $\\text{U}(1)$ holonomy with torsion. We fi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02710","kind":"arxiv","version":3},"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":"1504.02710","created_at":"2026-05-18T01:32:29.802452+00:00"},{"alias_kind":"arxiv_version","alias_value":"1504.02710v3","created_at":"2026-05-18T01:32:29.802452+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02710","created_at":"2026-05-18T01:32:29.802452+00:00"},{"alias_kind":"pith_short_12","alias_value":"K7QXM7XRDL7J","created_at":"2026-05-18T12:29:27.538025+00:00"},{"alias_kind":"pith_short_16","alias_value":"K7QXM7XRDL7JJWAH","created_at":"2026-05-18T12:29:27.538025+00:00"},{"alias_kind":"pith_short_8","alias_value":"K7QXM7XR","created_at":"2026-05-18T12:29:27.538025+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/K7QXM7XRDL7JJWAHUT7FRC5CJD","json":"https://pith.science/pith/K7QXM7XRDL7JJWAHUT7FRC5CJD.json","graph_json":"https://pith.science/api/pith-number/K7QXM7XRDL7JJWAHUT7FRC5CJD/graph.json","events_json":"https://pith.science/api/pith-number/K7QXM7XRDL7JJWAHUT7FRC5CJD/events.json","paper":"https://pith.science/paper/K7QXM7XR"},"agent_actions":{"view_html":"https://pith.science/pith/K7QXM7XRDL7JJWAHUT7FRC5CJD","download_json":"https://pith.science/pith/K7QXM7XRDL7JJWAHUT7FRC5CJD.json","view_paper":"https://pith.science/paper/K7QXM7XR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1504.02710&json=true","fetch_graph":"https://pith.science/api/pith-number/K7QXM7XRDL7JJWAHUT7FRC5CJD/graph.json","fetch_events":"https://pith.science/api/pith-number/K7QXM7XRDL7JJWAHUT7FRC5CJD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/K7QXM7XRDL7JJWAHUT7FRC5CJD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/K7QXM7XRDL7JJWAHUT7FRC5CJD/action/storage_attestation","attest_author":"https://pith.science/pith/K7QXM7XRDL7JJWAHUT7FRC5CJD/action/author_attestation","sign_citation":"https://pith.science/pith/K7QXM7XRDL7JJWAHUT7FRC5CJD/action/citation_signature","submit_replication":"https://pith.science/pith/K7QXM7XRDL7JJWAHUT7FRC5CJD/action/replication_record"}},"created_at":"2026-05-18T01:32:29.802452+00:00","updated_at":"2026-05-18T01:32:29.802452+00:00"}