{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:4RDXYND25S27OC76EZF5DCUAJ4","short_pith_number":"pith:4RDXYND2","canonical_record":{"source":{"id":"hep-th/0609191","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2006-09-27T17:05:45Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f48471d68f302d602ae44f71c1f5e4a5f8a6e80de704797df465dff437bc2a1d","abstract_canon_sha256":"3ab59e6571b5697c4d6377f6fda89f5439bdd41f556274e00b8f2474447417e2"},"schema_version":"1.0"},"canonical_sha256":"e4477c347aecb5f70bfe264bd18a804f0696085eca31d9c82923e19ac52e41f2","source":{"kind":"arxiv","id":"hep-th/0609191","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0609191","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0609191v4","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0609191","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"pith_short_12","alias_value":"4RDXYND25S27","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"4RDXYND25S27OC76","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"4RDXYND2","created_at":"2026-07-04T15:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:4RDXYND25S27OC76EZF5DCUAJ4","target":"record","payload":{"canonical_record":{"source":{"id":"hep-th/0609191","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2006-09-27T17:05:45Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f48471d68f302d602ae44f71c1f5e4a5f8a6e80de704797df465dff437bc2a1d","abstract_canon_sha256":"3ab59e6571b5697c4d6377f6fda89f5439bdd41f556274e00b8f2474447417e2"},"schema_version":"1.0"},"canonical_sha256":"e4477c347aecb5f70bfe264bd18a804f0696085eca31d9c82923e19ac52e41f2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:26:07.894298Z","signature_b64":"DmcJJre8pHjq6UYH099btrvZejp7K8eftKVu9DozJ0sHKxdYdqaEKPujadIRsuIu34qsU7ZbCCEgRCDXDmauBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e4477c347aecb5f70bfe264bd18a804f0696085eca31d9c82923e19ac52e41f2","last_reissued_at":"2026-07-04T15:26:07.893896Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:26:07.893896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-th/0609191","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:26:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vW74oSFlqagSHOsJWOx45+BABbBLlxaQfVenCOTtAtBQCCb3AlLB5IgI7cLVpf6FAg5ztqcJBmiWAw+24FFyBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:39:22.402975Z"},"content_sha256":"fb31c7b2500191c8b760ae5dbd32ed8136d6552390ec0ce7b411f2e790354e04","schema_version":"1.0","event_id":"sha256:fb31c7b2500191c8b760ae5dbd32ed8136d6552390ec0ce7b411f2e790354e04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:4RDXYND25S27OC76EZF5DCUAJ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spacetime Instanton Corrections in 4D String Vacua - The Seesaw Mechanism for D-Brane Models","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-th","authors_text":"Mirjam Cvetic, Ralph Blumenhagen, Timo Weigand","submitted_at":"2006-09-27T17:05:45Z","abstract_excerpt":"We systematically investigate instanton corrections from wrapped Euclidean D-branes to the matter field superpotential of various classes of N=1 supersymmetric D-brane models in four dimensions. Both gauge invariance and the counting of fermionic zero modes provide strong constraints on the allowed non-perturbative superpotential couplings. We outline how the complete instanton computation boils down to the computation of open string disc diagrams for boundary changing operators multiplied by a one-loop vacuum diagram. For concreteness we focus on E2-instanton effects in Type IIA vacua with in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0609191","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-th/0609191/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:26:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rBmftVI3Y5M7gkIfrMO9tWiD1ZFjGtLfg2hzhPCq+Vqp65TzuMYVYyZiIy2/a5jKgkY3xx3BHgVGC9nS/TUWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:39:22.403826Z"},"content_sha256":"d9cc96acc2db739c7566f1aaec137c81171a5f94724cd8e48af3f59b8eaa8f7b","schema_version":"1.0","event_id":"sha256:d9cc96acc2db739c7566f1aaec137c81171a5f94724cd8e48af3f59b8eaa8f7b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4RDXYND25S27OC76EZF5DCUAJ4/bundle.json","state_url":"https://pith.science/pith/4RDXYND25S27OC76EZF5DCUAJ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4RDXYND25S27OC76EZF5DCUAJ4/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-05T15:39:22Z","links":{"resolver":"https://pith.science/pith/4RDXYND25S27OC76EZF5DCUAJ4","bundle":"https://pith.science/pith/4RDXYND25S27OC76EZF5DCUAJ4/bundle.json","state":"https://pith.science/pith/4RDXYND25S27OC76EZF5DCUAJ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4RDXYND25S27OC76EZF5DCUAJ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:4RDXYND25S27OC76EZF5DCUAJ4","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":"3ab59e6571b5697c4d6377f6fda89f5439bdd41f556274e00b8f2474447417e2","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"hep-th","submitted_at":"2006-09-27T17:05:45Z","title_canon_sha256":"f48471d68f302d602ae44f71c1f5e4a5f8a6e80de704797df465dff437bc2a1d"},"schema_version":"1.0","source":{"id":"hep-th/0609191","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0609191","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0609191v4","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0609191","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"pith_short_12","alias_value":"4RDXYND25S27","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"4RDXYND25S27OC76","created_at":"2026-07-04T15:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"4RDXYND2","created_at":"2026-07-04T15:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:d9cc96acc2db739c7566f1aaec137c81171a5f94724cd8e48af3f59b8eaa8f7b","target":"graph","created_at":"2026-07-04T15:26:07Z","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/hep-th/0609191/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We systematically investigate instanton corrections from wrapped Euclidean D-branes to the matter field superpotential of various classes of N=1 supersymmetric D-brane models in four dimensions. Both gauge invariance and the counting of fermionic zero modes provide strong constraints on the allowed non-perturbative superpotential couplings. We outline how the complete instanton computation boils down to the computation of open string disc diagrams for boundary changing operators multiplied by a one-loop vacuum diagram. For concreteness we focus on E2-instanton effects in Type IIA vacua with in","authors_text":"Mirjam Cvetic, Ralph Blumenhagen, Timo Weigand","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2006-09-27T17:05:45Z","title":"Spacetime Instanton Corrections in 4D String Vacua - The Seesaw Mechanism for D-Brane Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0609191","kind":"arxiv","version":4},"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:fb31c7b2500191c8b760ae5dbd32ed8136d6552390ec0ce7b411f2e790354e04","target":"record","created_at":"2026-07-04T15:26:07Z","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":"3ab59e6571b5697c4d6377f6fda89f5439bdd41f556274e00b8f2474447417e2","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"hep-th","submitted_at":"2006-09-27T17:05:45Z","title_canon_sha256":"f48471d68f302d602ae44f71c1f5e4a5f8a6e80de704797df465dff437bc2a1d"},"schema_version":"1.0","source":{"id":"hep-th/0609191","kind":"arxiv","version":4}},"canonical_sha256":"e4477c347aecb5f70bfe264bd18a804f0696085eca31d9c82923e19ac52e41f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4477c347aecb5f70bfe264bd18a804f0696085eca31d9c82923e19ac52e41f2","first_computed_at":"2026-07-04T15:26:07.893896Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:26:07.893896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DmcJJre8pHjq6UYH099btrvZejp7K8eftKVu9DozJ0sHKxdYdqaEKPujadIRsuIu34qsU7ZbCCEgRCDXDmauBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:26:07.894298Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/0609191","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fb31c7b2500191c8b760ae5dbd32ed8136d6552390ec0ce7b411f2e790354e04","sha256:d9cc96acc2db739c7566f1aaec137c81171a5f94724cd8e48af3f59b8eaa8f7b"],"state_sha256":"f9932e52811a3da733dbb432b14fc75872a42694e60439f5a1fbafa4328475e6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MApdJeNl2RuzlPx7foPyKtpfHrDhw/KvD8oaxnMfyoj4nrBUIGXRO+AtrgQoY+ixQ6MIPeId6CZuOi4rfshGBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T15:39:22.408954Z","bundle_sha256":"50cdbfa70508cbb18dabdbd9b3a063c2ba4a02b9b09346cf62fe0f8afbc12c77"}}