{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:OCNMLVSKFUEDLQSDCXYZISZTV2","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":"b239d8eb0aea73980eb876b9dd90a782a114e362a59ad1c1d53af4b106edf5f6","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-11-10T23:00:11Z","title_canon_sha256":"a924ab64b86cf63c9d60ad5cdd7b57c950e167f8b2521e5c6792d4cc31488025"},"schema_version":"1.0","source":{"id":"0811.1583","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.1583","created_at":"2026-07-04T15:40:29Z"},{"alias_kind":"arxiv_version","alias_value":"0811.1583v2","created_at":"2026-07-04T15:40:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.1583","created_at":"2026-07-04T15:40:29Z"},{"alias_kind":"pith_short_12","alias_value":"OCNMLVSKFUED","created_at":"2026-07-04T15:40:29Z"},{"alias_kind":"pith_short_16","alias_value":"OCNMLVSKFUEDLQSD","created_at":"2026-07-04T15:40:29Z"},{"alias_kind":"pith_short_8","alias_value":"OCNMLVSK","created_at":"2026-07-04T15:40:29Z"}],"graph_snapshots":[{"event_id":"sha256:314db7e713814205f6e14561e54899f254f377567bba9d23a8ddf852f0e2d39a","target":"graph","created_at":"2026-07-04T15:40:29Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0811.1583/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Type IIA orientifold constructions with intersecting D6-branes and their IIB duals in terms of magnetized D9/D7-branes constitute one of the most promising avenues for the construction of semirealistic MSSM-like compactifications. One generic problem with these constructions is, that there are many Yukawa couplings, which vanish due to additional U(1) symmetries in the theory. In this paper we consider a number of such settings and study, under what conditions stringy instanton effects can give rise to non-perturbative contributions to the Yukawa couplings, so that all perturbatively forbidden","authors_text":"L. E. Ibanez, R. Richter","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-11-10T23:00:11Z","title":"Stringy Instantons and Yukawa Couplings in MSSM-like Orientifold Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.1583","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":"sha256:528db7c06d3e1a57d969ae2718a8129e761b06530cb32408f3322cc9120819bd","target":"record","created_at":"2026-07-04T15:40:29Z","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":"b239d8eb0aea73980eb876b9dd90a782a114e362a59ad1c1d53af4b106edf5f6","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-11-10T23:00:11Z","title_canon_sha256":"a924ab64b86cf63c9d60ad5cdd7b57c950e167f8b2521e5c6792d4cc31488025"},"schema_version":"1.0","source":{"id":"0811.1583","kind":"arxiv","version":2}},"canonical_sha256":"709ac5d64a2d0835c24315f1944b33aea5bf4c149f720756ef7475552611af6c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"709ac5d64a2d0835c24315f1944b33aea5bf4c149f720756ef7475552611af6c","first_computed_at":"2026-07-04T15:40:29.581985Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:40:29.581985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FmbCfHB9YNO28h8vKAY19hFCwkcE3ZIyuve7WClf/6fljDH8yHHJal+r1VJiHgVmpzbdTMtbJ/Bnz48dWa13Aw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:40:29.582375Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.1583","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:528db7c06d3e1a57d969ae2718a8129e761b06530cb32408f3322cc9120819bd","sha256:314db7e713814205f6e14561e54899f254f377567bba9d23a8ddf852f0e2d39a"],"state_sha256":"8994506dfa7398238940c100a5f72e591ebcffb034c1fb0a982c7e0303d39729"}