{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2000:BPFB7I3IJYTKXSDVFE5EILWCBL","short_pith_number":"pith:BPFB7I3I","schema_version":"1.0","canonical_sha256":"0bca1fa3684e26abc875293a442ec20ada28af1ecfdbaba3c936d20d5a2a20b0","source":{"kind":"arxiv","id":"hep-th/0002023","version":3},"attestation_state":"computed","paper":{"title":"D-branes, B-fields and twisted K-theory","license":"","headline":"","cross_cats":["math.DG","math.KT"],"primary_cat":"hep-th","authors_text":"P. Bouwknegt, V. Mathai","submitted_at":"2000-02-02T23:33:14Z","abstract_excerpt":"In this note we propose that D-brane charges, in the presence of a topologically non-trivial B-field, are classified by the K-theory of an infinite dimensional C^*-algebra. In the case of B-fields whose curvature is pure torsion our description is shown to coincide with that of Witten."},"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/0002023","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2000-02-02T23:33:14Z","cross_cats_sorted":["math.DG","math.KT"],"title_canon_sha256":"00640ca6b48e688982ac67d559bdd7e520ef9b9f6cb817a8cba62622630001de","abstract_canon_sha256":"2e775581884a02bb90e10259000dbf5f88ff992169ee2e9120aace077c5ba68c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:36:13.199302Z","signature_b64":"nSLr0aFmQmOlVMLADYkiVPT6TcVEOa02Ho8jeJ8Wy/OYku6ZVahwj9zuO88FIwl+JVjFUztnbKdUKjiTo0SqCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0bca1fa3684e26abc875293a442ec20ada28af1ecfdbaba3c936d20d5a2a20b0","last_reissued_at":"2026-05-18T02:36:13.198908Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:36:13.198908Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"D-branes, B-fields and twisted K-theory","license":"","headline":"","cross_cats":["math.DG","math.KT"],"primary_cat":"hep-th","authors_text":"P. Bouwknegt, V. Mathai","submitted_at":"2000-02-02T23:33:14Z","abstract_excerpt":"In this note we propose that D-brane charges, in the presence of a topologically non-trivial B-field, are classified by the K-theory of an infinite dimensional C^*-algebra. In the case of B-fields whose curvature is pure torsion our description is shown to coincide with that of Witten."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0002023","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":"hep-th/0002023","created_at":"2026-05-18T02:36:13.198967+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0002023v3","created_at":"2026-05-18T02:36:13.198967+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0002023","created_at":"2026-05-18T02:36:13.198967+00:00"},{"alias_kind":"pith_short_12","alias_value":"BPFB7I3IJYTK","created_at":"2026-05-18T12:25:49.631198+00:00"},{"alias_kind":"pith_short_16","alias_value":"BPFB7I3IJYTKXSDV","created_at":"2026-05-18T12:25:49.631198+00:00"},{"alias_kind":"pith_short_8","alias_value":"BPFB7I3I","created_at":"2026-05-18T12:25:49.631198+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/BPFB7I3IJYTKXSDVFE5EILWCBL","json":"https://pith.science/pith/BPFB7I3IJYTKXSDVFE5EILWCBL.json","graph_json":"https://pith.science/api/pith-number/BPFB7I3IJYTKXSDVFE5EILWCBL/graph.json","events_json":"https://pith.science/api/pith-number/BPFB7I3IJYTKXSDVFE5EILWCBL/events.json","paper":"https://pith.science/paper/BPFB7I3I"},"agent_actions":{"view_html":"https://pith.science/pith/BPFB7I3IJYTKXSDVFE5EILWCBL","download_json":"https://pith.science/pith/BPFB7I3IJYTKXSDVFE5EILWCBL.json","view_paper":"https://pith.science/paper/BPFB7I3I","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-th/0002023&json=true","fetch_graph":"https://pith.science/api/pith-number/BPFB7I3IJYTKXSDVFE5EILWCBL/graph.json","fetch_events":"https://pith.science/api/pith-number/BPFB7I3IJYTKXSDVFE5EILWCBL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BPFB7I3IJYTKXSDVFE5EILWCBL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BPFB7I3IJYTKXSDVFE5EILWCBL/action/storage_attestation","attest_author":"https://pith.science/pith/BPFB7I3IJYTKXSDVFE5EILWCBL/action/author_attestation","sign_citation":"https://pith.science/pith/BPFB7I3IJYTKXSDVFE5EILWCBL/action/citation_signature","submit_replication":"https://pith.science/pith/BPFB7I3IJYTKXSDVFE5EILWCBL/action/replication_record"}},"created_at":"2026-05-18T02:36:13.198967+00:00","updated_at":"2026-05-18T02:36:13.198967+00:00"}