{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1993:B6DHCW6T52TNLTDLIJPCUUJBT7","short_pith_number":"pith:B6DHCW6T","canonical_record":{"source":{"id":"hep-th/9312187","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"1993-12-23T15:04:28Z","cross_cats_sorted":[],"title_canon_sha256":"7f95456d0545540f0c44d51cadbb9a4d40be5c3ad7e614d24459c9dddb1a644c","abstract_canon_sha256":"46428ea4b5c6fb34407c903ff677713c51a8a24f06f86fcc718ac4200a42faea"},"schema_version":"1.0"},"canonical_sha256":"0f86715bd3eea6d5cc6b425e2a51219fde424770b777639641f8d0b99b6af3c8","source":{"kind":"arxiv","id":"hep-th/9312187","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/9312187","created_at":"2026-05-18T04:25:26Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/9312187v1","created_at":"2026-05-18T04:25:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/9312187","created_at":"2026-05-18T04:25:26Z"},{"alias_kind":"pith_short_12","alias_value":"B6DHCW6T52TN","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"B6DHCW6T52TNLTDL","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"B6DHCW6T","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1993:B6DHCW6T52TNLTDLIJPCUUJBT7","target":"record","payload":{"canonical_record":{"source":{"id":"hep-th/9312187","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"1993-12-23T15:04:28Z","cross_cats_sorted":[],"title_canon_sha256":"7f95456d0545540f0c44d51cadbb9a4d40be5c3ad7e614d24459c9dddb1a644c","abstract_canon_sha256":"46428ea4b5c6fb34407c903ff677713c51a8a24f06f86fcc718ac4200a42faea"},"schema_version":"1.0"},"canonical_sha256":"0f86715bd3eea6d5cc6b425e2a51219fde424770b777639641f8d0b99b6af3c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:25:26.567493Z","signature_b64":"dj5nUwonqGHoLely2uTmij7i3llFzVri8IG1HYbprZhoXyLs4RypHyYe4+YTbrN83dVlnEZecTuco0IQBFQCCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f86715bd3eea6d5cc6b425e2a51219fde424770b777639641f8d0b99b6af3c8","last_reissued_at":"2026-05-18T04:25:26.566488Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:25:26.566488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-th/9312187","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:25:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"44DBQrC6KkHm6nWryTv642P7v7aUtmeVnMyNpUbFyOsOgozUt1ST2WHUBakeW5ZMg1ZsWNe02/eSrqOi2zXOAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:09:56.696736Z"},"content_sha256":"b28111434c4878c5d69bd96b077b21d1fe29ced913dbe97beb86aac8db9c0914","schema_version":"1.0","event_id":"sha256:b28111434c4878c5d69bd96b077b21d1fe29ced913dbe97beb86aac8db9c0914"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1993:B6DHCW6T52TNLTDLIJPCUUJBT7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$N=1$ from $N=2$ Superstrings","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Jens Lyng Petersen, Nobuyoshi Ohta","submitted_at":"1993-12-23T15:04:28Z","abstract_excerpt":"We give a simple proof that a particular class of $N=2$ superstrings are equivalent to the $N=1$ superstrings. This is achieved by constructing a similarity transformation which transforms the $N=2$ BRST operators into a direct sum of the BRST operators for the $N=1$ string and topological sectors."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/9312187","kind":"arxiv","version":1},"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":"2026-05-18T04:25:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5fgL24UIAaIIpeJLfHU3+qNF1gXooMDetror/kUC13L5gd/j7nXhPlsS/0czZJA7j8cKRTNvLc8i8sQs+AEJCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:09:56.697078Z"},"content_sha256":"ec8711562ffbd77e0d3e317aa17f2d1914ad6d0fe800ae9c9745bcd1b190988c","schema_version":"1.0","event_id":"sha256:ec8711562ffbd77e0d3e317aa17f2d1914ad6d0fe800ae9c9745bcd1b190988c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B6DHCW6T52TNLTDLIJPCUUJBT7/bundle.json","state_url":"https://pith.science/pith/B6DHCW6T52TNLTDLIJPCUUJBT7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B6DHCW6T52TNLTDLIJPCUUJBT7/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":"2026-06-03T20:09:56Z","links":{"resolver":"https://pith.science/pith/B6DHCW6T52TNLTDLIJPCUUJBT7","bundle":"https://pith.science/pith/B6DHCW6T52TNLTDLIJPCUUJBT7/bundle.json","state":"https://pith.science/pith/B6DHCW6T52TNLTDLIJPCUUJBT7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B6DHCW6T52TNLTDLIJPCUUJBT7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1993:B6DHCW6T52TNLTDLIJPCUUJBT7","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":"46428ea4b5c6fb34407c903ff677713c51a8a24f06f86fcc718ac4200a42faea","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"1993-12-23T15:04:28Z","title_canon_sha256":"7f95456d0545540f0c44d51cadbb9a4d40be5c3ad7e614d24459c9dddb1a644c"},"schema_version":"1.0","source":{"id":"hep-th/9312187","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/9312187","created_at":"2026-05-18T04:25:26Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/9312187v1","created_at":"2026-05-18T04:25:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/9312187","created_at":"2026-05-18T04:25:26Z"},{"alias_kind":"pith_short_12","alias_value":"B6DHCW6T52TN","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"B6DHCW6T52TNLTDL","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"B6DHCW6T","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:ec8711562ffbd77e0d3e317aa17f2d1914ad6d0fe800ae9c9745bcd1b190988c","target":"graph","created_at":"2026-05-18T04:25:26Z","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 simple proof that a particular class of $N=2$ superstrings are equivalent to the $N=1$ superstrings. This is achieved by constructing a similarity transformation which transforms the $N=2$ BRST operators into a direct sum of the BRST operators for the $N=1$ string and topological sectors.","authors_text":"Jens Lyng Petersen, Nobuyoshi Ohta","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"1993-12-23T15:04:28Z","title":"$N=1$ from $N=2$ Superstrings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/9312187","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:b28111434c4878c5d69bd96b077b21d1fe29ced913dbe97beb86aac8db9c0914","target":"record","created_at":"2026-05-18T04:25:26Z","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":"46428ea4b5c6fb34407c903ff677713c51a8a24f06f86fcc718ac4200a42faea","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"1993-12-23T15:04:28Z","title_canon_sha256":"7f95456d0545540f0c44d51cadbb9a4d40be5c3ad7e614d24459c9dddb1a644c"},"schema_version":"1.0","source":{"id":"hep-th/9312187","kind":"arxiv","version":1}},"canonical_sha256":"0f86715bd3eea6d5cc6b425e2a51219fde424770b777639641f8d0b99b6af3c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f86715bd3eea6d5cc6b425e2a51219fde424770b777639641f8d0b99b6af3c8","first_computed_at":"2026-05-18T04:25:26.566488Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:25:26.566488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dj5nUwonqGHoLely2uTmij7i3llFzVri8IG1HYbprZhoXyLs4RypHyYe4+YTbrN83dVlnEZecTuco0IQBFQCCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:25:26.567493Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/9312187","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b28111434c4878c5d69bd96b077b21d1fe29ced913dbe97beb86aac8db9c0914","sha256:ec8711562ffbd77e0d3e317aa17f2d1914ad6d0fe800ae9c9745bcd1b190988c"],"state_sha256":"00d9a5b542725a9e4e4b82975f8475330a3619e743603b2af3b727402c34a5b5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6HwgY+2elPHMMytemfBTcKRIyq2NXxfRw4EERyCXhjgluk9aMDI8f+NeITaF3qaCsrEtsCoekL+YcEI6W6RUCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T20:09:56.699054Z","bundle_sha256":"1cd6a7e0864a8268af655b98345fc1315220d61d45d0c471f307538eb0919e08"}}