{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:U7GC4CQFLLOXJQBUYVOCKVCJLF","short_pith_number":"pith:U7GC4CQF","schema_version":"1.0","canonical_sha256":"a7cc2e0a055add74c034c55c25544959761138334d5ba70233c46b55ae6a2a81","source":{"kind":"arxiv","id":"hep-th/0211056","version":1},"attestation_state":"computed","paper":{"title":"Space/Time Noncommutativity in String Theories without Background Electric Field","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"G. De Risi, G. Grignani, M. Orselli","submitted_at":"2002-11-07T11:37:17Z","abstract_excerpt":"The appearance of space/time non-commutativity in theories of open strings with a constant non-diagonal background metric is considered. We show that, even if the space-time coordinates commute, when there is a metric with a time-space component, no electric field and the boundary condition along the spatial direction is Dirichlet, a Moyal phase still arises in products of vertex operators. The theory is in fact dual to the non-commutatitive open string (NCOS) theory. The correct definition of the vertex operators for this theory is provided. We study the system also in the presence of a $B$ f"},"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/0211056","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2002-11-07T11:37:17Z","cross_cats_sorted":[],"title_canon_sha256":"bceb34c1be01b1e33179d99522f1021fb7da1efe3c94ab4af7e3bb5f37f2096f","abstract_canon_sha256":"f42a6506280a4e6fdd49a3809bb154d1c91f0e61a9b32af5cdee8acd1a030b4b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:38:49.132957Z","signature_b64":"7kt2AXl5qQCeE+B2mkhOhwAH0LXL3qDiCaCDTkDt3w7Z60jyBjZLNnxWRXDEv/EAxZs0hzlWJx8nbKjcKu6PCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7cc2e0a055add74c034c55c25544959761138334d5ba70233c46b55ae6a2a81","last_reissued_at":"2026-05-18T01:38:49.132253Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:38:49.132253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Space/Time Noncommutativity in String Theories without Background Electric Field","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"G. De Risi, G. Grignani, M. Orselli","submitted_at":"2002-11-07T11:37:17Z","abstract_excerpt":"The appearance of space/time non-commutativity in theories of open strings with a constant non-diagonal background metric is considered. We show that, even if the space-time coordinates commute, when there is a metric with a time-space component, no electric field and the boundary condition along the spatial direction is Dirichlet, a Moyal phase still arises in products of vertex operators. The theory is in fact dual to the non-commutatitive open string (NCOS) theory. The correct definition of the vertex operators for this theory is provided. We study the system also in the presence of a $B$ f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0211056","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":"hep-th/0211056","created_at":"2026-05-18T01:38:49.132358+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0211056v1","created_at":"2026-05-18T01:38:49.132358+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0211056","created_at":"2026-05-18T01:38:49.132358+00:00"},{"alias_kind":"pith_short_12","alias_value":"U7GC4CQFLLOX","created_at":"2026-05-18T12:25:51.375804+00:00"},{"alias_kind":"pith_short_16","alias_value":"U7GC4CQFLLOXJQBU","created_at":"2026-05-18T12:25:51.375804+00:00"},{"alias_kind":"pith_short_8","alias_value":"U7GC4CQF","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/U7GC4CQFLLOXJQBUYVOCKVCJLF","json":"https://pith.science/pith/U7GC4CQFLLOXJQBUYVOCKVCJLF.json","graph_json":"https://pith.science/api/pith-number/U7GC4CQFLLOXJQBUYVOCKVCJLF/graph.json","events_json":"https://pith.science/api/pith-number/U7GC4CQFLLOXJQBUYVOCKVCJLF/events.json","paper":"https://pith.science/paper/U7GC4CQF"},"agent_actions":{"view_html":"https://pith.science/pith/U7GC4CQFLLOXJQBUYVOCKVCJLF","download_json":"https://pith.science/pith/U7GC4CQFLLOXJQBUYVOCKVCJLF.json","view_paper":"https://pith.science/paper/U7GC4CQF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-th/0211056&json=true","fetch_graph":"https://pith.science/api/pith-number/U7GC4CQFLLOXJQBUYVOCKVCJLF/graph.json","fetch_events":"https://pith.science/api/pith-number/U7GC4CQFLLOXJQBUYVOCKVCJLF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U7GC4CQFLLOXJQBUYVOCKVCJLF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U7GC4CQFLLOXJQBUYVOCKVCJLF/action/storage_attestation","attest_author":"https://pith.science/pith/U7GC4CQFLLOXJQBUYVOCKVCJLF/action/author_attestation","sign_citation":"https://pith.science/pith/U7GC4CQFLLOXJQBUYVOCKVCJLF/action/citation_signature","submit_replication":"https://pith.science/pith/U7GC4CQFLLOXJQBUYVOCKVCJLF/action/replication_record"}},"created_at":"2026-05-18T01:38:49.132358+00:00","updated_at":"2026-05-18T01:38:49.132358+00:00"}