{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:AHTLGVYDXBVACOF4ION57HPCO2","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":"264d2b1341765408640f911231753421d1d5ad5b4f6a234e9ee5b2e85b717842","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2001-01-18T14:03:56Z","title_canon_sha256":"245a593d9476af453fc42832715573ebc09ef05ca2b97d92a48c2d2ac5dc23bc"},"schema_version":"1.0","source":{"id":"hep-th/0101122","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0101122","created_at":"2026-05-18T01:38:54Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0101122v1","created_at":"2026-05-18T01:38:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0101122","created_at":"2026-05-18T01:38:54Z"},{"alias_kind":"pith_short_12","alias_value":"AHTLGVYDXBVA","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"AHTLGVYDXBVACOF4","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"AHTLGVYD","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:d210ccd8e310e579948ea17160c7556bd0f05d0537ebe50c928b84b3b71e17fd","target":"graph","created_at":"2026-05-18T01:38:54Z","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":"In this lecture we summarize some recent work on the understanding of instanton effects in string theories with 16 supersymmetries. In particular, we consider F^4 couplings using the duality between the heterotic string on T^4 and type IIA on K_3 at an orbifold point, as well as higher and lower dimensional versions of this string-string duality. At the perturbative level a non-trivial test of the duality, requiring several miraculous identities, is presented by matching a purely one-loop heterotic amplitude to a purely tree-level type II result. A wide variety of non-perturbative effects is s","authors_text":"B. Pioline (Harvard, ITF), LPTHE), N.A. Obers (Spinoza","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2001-01-18T14:03:56Z","title":"Exact Thresholds and Instanton Effects in String Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0101122","kind":"arxiv","version":1},"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":"sha256:6e17da5fe70530b357653d769919875fe2b39b374481cd300b94a86503ebc5f9","target":"record","created_at":"2026-05-18T01:38:54Z","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":"264d2b1341765408640f911231753421d1d5ad5b4f6a234e9ee5b2e85b717842","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2001-01-18T14:03:56Z","title_canon_sha256":"245a593d9476af453fc42832715573ebc09ef05ca2b97d92a48c2d2ac5dc23bc"},"schema_version":"1.0","source":{"id":"hep-th/0101122","kind":"arxiv","version":1}},"canonical_sha256":"01e6b35703b86a0138bc439bdf9de27689fb9c5660fbe6bcf63600cc9be189b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01e6b35703b86a0138bc439bdf9de27689fb9c5660fbe6bcf63600cc9be189b0","first_computed_at":"2026-05-18T01:38:54.844786Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:38:54.844786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+CprXPIzg3SuOmW6JISVXNRUYo+aPbFESqzEgCJA7CWP/gwI4HKpK6m00v299BedzjUded5NEXTvOA9D+60XAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:38:54.845497Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/0101122","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e17da5fe70530b357653d769919875fe2b39b374481cd300b94a86503ebc5f9","sha256:d210ccd8e310e579948ea17160c7556bd0f05d0537ebe50c928b84b3b71e17fd"],"state_sha256":"b28eeaf9261dcdb94426d5c188548fd8ef4173c84a9c398660b78f6e3c1735fe"}