{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KCKSE56SJFBM3GLFKGEDSGQJ2V","short_pith_number":"pith:KCKSE56S","canonical_record":{"source":{"id":"1312.5485","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-12-19T11:19:27Z","cross_cats_sorted":[],"title_canon_sha256":"beb1844b8ba66d04d9359d2d6a4885c766b61b8ce0e3c0eb8454e39051f6ef28","abstract_canon_sha256":"6fd5f12cf8a58398615b02a67a0207a9103b1596ae9d57379cafebf047b9f171"},"schema_version":"1.0"},"canonical_sha256":"50952277d24942cd99655188391a09d545e4661d3a8d0d3d5947e125319e8010","source":{"kind":"arxiv","id":"1312.5485","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.5485","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"arxiv_version","alias_value":"1312.5485v2","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.5485","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"pith_short_12","alias_value":"KCKSE56SJFBM","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KCKSE56SJFBM3GLF","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KCKSE56S","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KCKSE56SJFBM3GLFKGEDSGQJ2V","target":"record","payload":{"canonical_record":{"source":{"id":"1312.5485","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-12-19T11:19:27Z","cross_cats_sorted":[],"title_canon_sha256":"beb1844b8ba66d04d9359d2d6a4885c766b61b8ce0e3c0eb8454e39051f6ef28","abstract_canon_sha256":"6fd5f12cf8a58398615b02a67a0207a9103b1596ae9d57379cafebf047b9f171"},"schema_version":"1.0"},"canonical_sha256":"50952277d24942cd99655188391a09d545e4661d3a8d0d3d5947e125319e8010","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:48:37.092174Z","signature_b64":"5FMPLit3Tcq5eGr0vsMr6evRB7YTsDIcdSW/pbdYs0YQRrBbGqLP+sJ/A5wsdp8+P1l2KC+UAuVha0rWJUioCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50952277d24942cd99655188391a09d545e4661d3a8d0d3d5947e125319e8010","last_reissued_at":"2026-05-18T02:48:37.091602Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:48:37.091602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.5485","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":"2026-05-18T02:48:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n+w4rV+kKCpohoyrMfCprLyMa6GwGx9+F4FR1l0M6qaJ77BCmm7Oj5PTjOinVeFY5mhrvLizYDt/akEEmkFsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:14:26.563442Z"},"content_sha256":"af23b993c7f6dec307e519ad9e13556702ee65ce8339b875e5738d71de032147","schema_version":"1.0","event_id":"sha256:af23b993c7f6dec307e519ad9e13556702ee65ce8339b875e5738d71de032147"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KCKSE56SJFBM3GLFKGEDSGQJ2V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"N-Point Tree-Level Scattering Amplitude in the New Berkovits' String","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Ellis Ye Yuan, Humberto Gomez","submitted_at":"2013-12-19T11:19:27Z","abstract_excerpt":"We give a proof by direct computation that at tree level, the twistor-like superstring theory in the pure spinor formalism proposed very recently by Berkovits describes ten-dimensional N=1 super Yang-Mills in its heterotic version, and type II supergravity in its type II version. The Yang-Mills case agrees with the result obtained by Mafra, Schlotterer, Stieberger and Tsimpis. When restricting to gluon and graviton scattering, this new theory gives rise to Cachazo-He-Yuan formula."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.5485","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":""},"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":"2026-05-18T02:48:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uuuooI0c4swGU4Adc9FIw6zSRKQjyRknpdGlFZlaYFUegPxnAaM7xqFaGFu91LbivPmm5190mguG9uKLpR6aBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:14:26.564064Z"},"content_sha256":"598ae883164246b35182929034781b39b98dc987834f6e4abe2634f7b5672d08","schema_version":"1.0","event_id":"sha256:598ae883164246b35182929034781b39b98dc987834f6e4abe2634f7b5672d08"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KCKSE56SJFBM3GLFKGEDSGQJ2V/bundle.json","state_url":"https://pith.science/pith/KCKSE56SJFBM3GLFKGEDSGQJ2V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KCKSE56SJFBM3GLFKGEDSGQJ2V/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":"2026-05-25T04:14:26Z","links":{"resolver":"https://pith.science/pith/KCKSE56SJFBM3GLFKGEDSGQJ2V","bundle":"https://pith.science/pith/KCKSE56SJFBM3GLFKGEDSGQJ2V/bundle.json","state":"https://pith.science/pith/KCKSE56SJFBM3GLFKGEDSGQJ2V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KCKSE56SJFBM3GLFKGEDSGQJ2V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KCKSE56SJFBM3GLFKGEDSGQJ2V","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":"6fd5f12cf8a58398615b02a67a0207a9103b1596ae9d57379cafebf047b9f171","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-12-19T11:19:27Z","title_canon_sha256":"beb1844b8ba66d04d9359d2d6a4885c766b61b8ce0e3c0eb8454e39051f6ef28"},"schema_version":"1.0","source":{"id":"1312.5485","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.5485","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"arxiv_version","alias_value":"1312.5485v2","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.5485","created_at":"2026-05-18T02:48:37Z"},{"alias_kind":"pith_short_12","alias_value":"KCKSE56SJFBM","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KCKSE56SJFBM3GLF","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KCKSE56S","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:598ae883164246b35182929034781b39b98dc987834f6e4abe2634f7b5672d08","target":"graph","created_at":"2026-05-18T02:48:37Z","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 give a proof by direct computation that at tree level, the twistor-like superstring theory in the pure spinor formalism proposed very recently by Berkovits describes ten-dimensional N=1 super Yang-Mills in its heterotic version, and type II supergravity in its type II version. The Yang-Mills case agrees with the result obtained by Mafra, Schlotterer, Stieberger and Tsimpis. When restricting to gluon and graviton scattering, this new theory gives rise to Cachazo-He-Yuan formula.","authors_text":"Ellis Ye Yuan, Humberto Gomez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-12-19T11:19:27Z","title":"N-Point Tree-Level Scattering Amplitude in the New Berkovits' String"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.5485","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:af23b993c7f6dec307e519ad9e13556702ee65ce8339b875e5738d71de032147","target":"record","created_at":"2026-05-18T02:48:37Z","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":"6fd5f12cf8a58398615b02a67a0207a9103b1596ae9d57379cafebf047b9f171","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-12-19T11:19:27Z","title_canon_sha256":"beb1844b8ba66d04d9359d2d6a4885c766b61b8ce0e3c0eb8454e39051f6ef28"},"schema_version":"1.0","source":{"id":"1312.5485","kind":"arxiv","version":2}},"canonical_sha256":"50952277d24942cd99655188391a09d545e4661d3a8d0d3d5947e125319e8010","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50952277d24942cd99655188391a09d545e4661d3a8d0d3d5947e125319e8010","first_computed_at":"2026-05-18T02:48:37.091602Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:48:37.091602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5FMPLit3Tcq5eGr0vsMr6evRB7YTsDIcdSW/pbdYs0YQRrBbGqLP+sJ/A5wsdp8+P1l2KC+UAuVha0rWJUioCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:48:37.092174Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.5485","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af23b993c7f6dec307e519ad9e13556702ee65ce8339b875e5738d71de032147","sha256:598ae883164246b35182929034781b39b98dc987834f6e4abe2634f7b5672d08"],"state_sha256":"f5b9e7816b6770a7127ba9505405b364f34241e973edd9d6a4082e1afb842ed6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L4/M2WOzrhAmYbmHOI22X8jj0FZ1FqSg3Ljl03AvUkelpBWuaHizDWRBWvg8elNcQuIxXYWrefWANroIhFVoCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T04:14:26.567596Z","bundle_sha256":"782d31c1c3421965036043cf0c6ac7cdcac8e3190853412c4a739f7b0614e34d"}}