{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:CZHPZ4YLER5PA73RZWLKIE2C2I","short_pith_number":"pith:CZHPZ4YL","canonical_record":{"source":{"id":"hep-th/0609012","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2006-09-01T19:51:01Z","cross_cats_sorted":[],"title_canon_sha256":"50489238312aa46c02b3224ad38bf6540892c2cefa66be469f81657eeb0b7a42","abstract_canon_sha256":"84476585ee020d20b30ab1242bff0bd8f42fca568c8f6518dfc7580c359634af"},"schema_version":"1.0"},"canonical_sha256":"164efcf30b247af07f71cd96a41342d22894afa230092c2ac6330d7b0f7d9a5b","source":{"kind":"arxiv","id":"hep-th/0609012","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0609012","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0609012v2","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0609012","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"pith_short_12","alias_value":"CZHPZ4YLER5P","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"pith_short_16","alias_value":"CZHPZ4YLER5PA73R","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"pith_short_8","alias_value":"CZHPZ4YL","created_at":"2026-07-04T17:02:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:CZHPZ4YLER5PA73RZWLKIE2C2I","target":"record","payload":{"canonical_record":{"source":{"id":"hep-th/0609012","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2006-09-01T19:51:01Z","cross_cats_sorted":[],"title_canon_sha256":"50489238312aa46c02b3224ad38bf6540892c2cefa66be469f81657eeb0b7a42","abstract_canon_sha256":"84476585ee020d20b30ab1242bff0bd8f42fca568c8f6518dfc7580c359634af"},"schema_version":"1.0"},"canonical_sha256":"164efcf30b247af07f71cd96a41342d22894afa230092c2ac6330d7b0f7d9a5b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:02:04.201709Z","signature_b64":"rcTynS02bt94m5sUCij+EZFOsR/gf5yg2kBSbxQpmiIy1Pt5ILd5RomV22Pf71vQYSbv7xxozb431bcvf3wdCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"164efcf30b247af07f71cd96a41342d22894afa230092c2ac6330d7b0f7d9a5b","last_reissued_at":"2026-07-04T17:02:04.201379Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:02:04.201379Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-th/0609012","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T17:02:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Moql0xLCsjsDpoWPlEi5K3gjKdWwjyscHY3c1SJRimFRA1aJCP1/HflBHyrFVncZSvdQ/eJBjaE4yBXEwH2wAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T19:08:29.188631Z"},"content_sha256":"f7009908829659e82bfc22b32edc1ec08160d03b4686ced5ca924bff5aca7a89","schema_version":"1.0","event_id":"sha256:f7009908829659e82bfc22b32edc1ec08160d03b4686ced5ca924bff5aca7a89"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:CZHPZ4YLER5PA73RZWLKIE2C2I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multiloop Superstring Amplitudes from Non-Minimal Pure Spinor Formalism","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Nathan Berkovits, Nikita Nekrasov","submitted_at":"2006-09-01T19:51:01Z","abstract_excerpt":"Using the non-minimal version of the pure spinor formalism, manifestly super-Poincare covariant superstring scattering amplitudes can be computed as in topological string theory without the need of picture-changing operators. The only subtlety comes from regularizing the functional integral over the pure spinor ghosts. In this paper, it is shown how to regularize this functional integral in a BRST-invariant manner, allowing the computation of arbitrary multiloop amplitudes. The regularization method simplifies for scattering amplitudes which contribute to ten-dimensional F-terms, i.e. terms in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0609012","kind":"arxiv","version":2},"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/0609012/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":"2026-07-04T17:02:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UiQJR5aIHyQuA/hXNXojE+2rGtw1YZxuPKzBoSrgjisMVFisgsDmUaNFuUewcXAsQoWlkdvCofBrbkitfAoeDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T19:08:29.189266Z"},"content_sha256":"85ef2ec8d5473ff5ccb7a38eb356baebebe132945e65698bd090d9bade86bf1e","schema_version":"1.0","event_id":"sha256:85ef2ec8d5473ff5ccb7a38eb356baebebe132945e65698bd090d9bade86bf1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CZHPZ4YLER5PA73RZWLKIE2C2I/bundle.json","state_url":"https://pith.science/pith/CZHPZ4YLER5PA73RZWLKIE2C2I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CZHPZ4YLER5PA73RZWLKIE2C2I/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":"2026-08-06T19:08:29Z","links":{"resolver":"https://pith.science/pith/CZHPZ4YLER5PA73RZWLKIE2C2I","bundle":"https://pith.science/pith/CZHPZ4YLER5PA73RZWLKIE2C2I/bundle.json","state":"https://pith.science/pith/CZHPZ4YLER5PA73RZWLKIE2C2I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CZHPZ4YLER5PA73RZWLKIE2C2I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:CZHPZ4YLER5PA73RZWLKIE2C2I","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":"84476585ee020d20b30ab1242bff0bd8f42fca568c8f6518dfc7580c359634af","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2006-09-01T19:51:01Z","title_canon_sha256":"50489238312aa46c02b3224ad38bf6540892c2cefa66be469f81657eeb0b7a42"},"schema_version":"1.0","source":{"id":"hep-th/0609012","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0609012","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0609012v2","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0609012","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"pith_short_12","alias_value":"CZHPZ4YLER5P","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"pith_short_16","alias_value":"CZHPZ4YLER5PA73R","created_at":"2026-07-04T17:02:04Z"},{"alias_kind":"pith_short_8","alias_value":"CZHPZ4YL","created_at":"2026-07-04T17:02:04Z"}],"graph_snapshots":[{"event_id":"sha256:85ef2ec8d5473ff5ccb7a38eb356baebebe132945e65698bd090d9bade86bf1e","target":"graph","created_at":"2026-07-04T17:02:04Z","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/0609012/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using the non-minimal version of the pure spinor formalism, manifestly super-Poincare covariant superstring scattering amplitudes can be computed as in topological string theory without the need of picture-changing operators. The only subtlety comes from regularizing the functional integral over the pure spinor ghosts. In this paper, it is shown how to regularize this functional integral in a BRST-invariant manner, allowing the computation of arbitrary multiloop amplitudes. The regularization method simplifies for scattering amplitudes which contribute to ten-dimensional F-terms, i.e. terms in","authors_text":"Nathan Berkovits, Nikita Nekrasov","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2006-09-01T19:51:01Z","title":"Multiloop Superstring Amplitudes from Non-Minimal Pure Spinor Formalism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0609012","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:f7009908829659e82bfc22b32edc1ec08160d03b4686ced5ca924bff5aca7a89","target":"record","created_at":"2026-07-04T17:02:04Z","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":"84476585ee020d20b30ab1242bff0bd8f42fca568c8f6518dfc7580c359634af","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2006-09-01T19:51:01Z","title_canon_sha256":"50489238312aa46c02b3224ad38bf6540892c2cefa66be469f81657eeb0b7a42"},"schema_version":"1.0","source":{"id":"hep-th/0609012","kind":"arxiv","version":2}},"canonical_sha256":"164efcf30b247af07f71cd96a41342d22894afa230092c2ac6330d7b0f7d9a5b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"164efcf30b247af07f71cd96a41342d22894afa230092c2ac6330d7b0f7d9a5b","first_computed_at":"2026-07-04T17:02:04.201379Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:02:04.201379Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rcTynS02bt94m5sUCij+EZFOsR/gf5yg2kBSbxQpmiIy1Pt5ILd5RomV22Pf71vQYSbv7xxozb431bcvf3wdCA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:02:04.201709Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/0609012","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f7009908829659e82bfc22b32edc1ec08160d03b4686ced5ca924bff5aca7a89","sha256:85ef2ec8d5473ff5ccb7a38eb356baebebe132945e65698bd090d9bade86bf1e"],"state_sha256":"9ec57e155347ce609c72839e04a37d0a3f2256266b3350786ca6503166cdb6dc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sDi89fdQbCT8UU61IqCxkryDasrfyz7zDz9h+EMsjidRLLk4ht2h9QIcBESsUBU3IH5t0z8OO36b0IaUFqC7Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T19:08:29.192861Z","bundle_sha256":"383a808c13030cd18fd1be6b2bc52df1524436248c9677a5e4aa81021016df65"}}