{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:FB3SJM327LPXM2VUPTXIYFSMWB","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"447898935d1f9034cdffefb80d735630ea4000ee1effe045f568b030af3e83e6","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2005-07-07T19:09:46Z","title_canon_sha256":"edf3ecc691a6b17b5408c10b162a8a3b0cfaa6bdba69d849c4fc238a8a66b312"},"schema_version":"1.0","source":{"id":"hep-th/0507069","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0507069","created_at":"2026-05-18T04:34:10Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0507069v2","created_at":"2026-05-18T04:34:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0507069","created_at":"2026-05-18T04:34:10Z"},{"alias_kind":"pith_short_12","alias_value":"FB3SJM327LPX","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"FB3SJM327LPXM2VU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"FB3SJM32","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:6422401e3b2176bd8401d5c7e0738d40682e0df4d5dd5a26e7535c55a55e9acc","target":"graph","created_at":"2026-05-18T04:34:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We study the problem of instanton generated superpotentials in Calabi-Yau orientifold compactifications directly in type IIB string theory. To this end, we derive the Dirac equation on a Euclidean D3 brane in the presence of background fluxes. We propose an index which governs whether the generation of a superpotential in the effective 4d theory by D3 brane instantons is possible. Applying the formalism to various classes of examples, including the K3 x T^2/Z_2 orientifold, in the absence and presence of fluxes, we show that our results are consistent with conclusions attainable via duality fr","authors_text":"Alessandro Tomasiello, Amir-Kian Kashani-Poor, Dmitri Sorokin, Eric Bergshoeff, Renata Kallosh","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2005-07-07T19:09:46Z","title":"An index for the Dirac operator on D3 branes with background fluxes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0507069","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:74fdccb8f5c623f31bb4e128f3d44de2c07af9360836ff4fab8a57e6b13c5eec","target":"record","created_at":"2026-05-18T04:34:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"447898935d1f9034cdffefb80d735630ea4000ee1effe045f568b030af3e83e6","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2005-07-07T19:09:46Z","title_canon_sha256":"edf3ecc691a6b17b5408c10b162a8a3b0cfaa6bdba69d849c4fc238a8a66b312"},"schema_version":"1.0","source":{"id":"hep-th/0507069","kind":"arxiv","version":2}},"canonical_sha256":"287724b37afadf766ab47cee8c164cb07df12731da326b5e9105b496ba121878","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"287724b37afadf766ab47cee8c164cb07df12731da326b5e9105b496ba121878","first_computed_at":"2026-05-18T04:34:10.482711Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:34:10.482711Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FvCTnD+O9wP9mdFx80ROaHpHaEXeRHOgLq/taNnjhZqHPLukueqHv66NwBn/Q0to6pqa3R1UCc6c70iIFmgcCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:34:10.483105Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/0507069","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74fdccb8f5c623f31bb4e128f3d44de2c07af9360836ff4fab8a57e6b13c5eec","sha256:6422401e3b2176bd8401d5c7e0738d40682e0df4d5dd5a26e7535c55a55e9acc"],"state_sha256":"4d66da1f4b9440017d38a5f9c8c4b771fc49b1cb246c718d14aed6b9b21b2b90"}