{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:OTZPI6ETFBZQXULSQXR6NJ47FW","short_pith_number":"pith:OTZPI6ET","canonical_record":{"source":{"id":"1003.6075","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-03-31T15:12:42Z","cross_cats_sorted":[],"title_canon_sha256":"18ed2b019a16eb56420b03a1f84dc385eb2a820408f390ac19ad50531e926895","abstract_canon_sha256":"f63ffba7af1cbf7194080cdb61be81ca052518b1c5a30aa454b14ccfbe5dab32"},"schema_version":"1.0"},"canonical_sha256":"74f2f4789328730bd17285e3e6a79f2da206aee747a2085d7740594672a3e1c1","source":{"kind":"arxiv","id":"1003.6075","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.6075","created_at":"2026-05-18T02:33:39Z"},{"alias_kind":"arxiv_version","alias_value":"1003.6075v3","created_at":"2026-05-18T02:33:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.6075","created_at":"2026-05-18T02:33:39Z"},{"alias_kind":"pith_short_12","alias_value":"OTZPI6ETFBZQ","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OTZPI6ETFBZQXULS","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OTZPI6ET","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:OTZPI6ETFBZQXULSQXR6NJ47FW","target":"record","payload":{"canonical_record":{"source":{"id":"1003.6075","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-03-31T15:12:42Z","cross_cats_sorted":[],"title_canon_sha256":"18ed2b019a16eb56420b03a1f84dc385eb2a820408f390ac19ad50531e926895","abstract_canon_sha256":"f63ffba7af1cbf7194080cdb61be81ca052518b1c5a30aa454b14ccfbe5dab32"},"schema_version":"1.0"},"canonical_sha256":"74f2f4789328730bd17285e3e6a79f2da206aee747a2085d7740594672a3e1c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:39.915790Z","signature_b64":"22XuO9J0BOCPt3i/1ytxh4gWYOZ8MZA0hq73XtUdJ1YUrwOjLWze1F/vrSWVB0PX0husXi2z12Cmg3Ewqa29CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"74f2f4789328730bd17285e3e6a79f2da206aee747a2085d7740594672a3e1c1","last_reissued_at":"2026-05-18T02:33:39.915155Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:39.915155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.6075","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:33:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nSrMbt8rPlK9AwSVqjzSWK2iB0aOIpHASKPWTVNkffoSd6OzmETXP9ieE25lanzLfirwrHoudgc8u/Jop+jhBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T00:38:25.907184Z"},"content_sha256":"a48ece08181f2f442b30147e7837b125a911d34856df022899dad88bbec3f4e3","schema_version":"1.0","event_id":"sha256:a48ece08181f2f442b30147e7837b125a911d34856df022899dad88bbec3f4e3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:OTZPI6ETFBZQXULSQXR6NJ47FW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Asymmetric Gepner Models (Revisited)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"A.N. Schellekens, B. Gato-Rivera","submitted_at":"2010-03-31T15:12:42Z","abstract_excerpt":"We reconsider a class of heterotic string theories studied in 1989, based on tensor products of N=2 minimal models with asymmetric simple current invariants. We extend this analysis from (2,2) and (1,2) spectra to (0,2) spectra with SO(10) broken to the Standard Model. In the latter case the spectrum must contain fractionally charged particles. We find that in nearly all cases at least some of them are massless. However, we identify a large subclass where the fractional charges are at worst half-integer, and often vector-like. The number of families is very often reduced in comparison to the 1"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.6075","kind":"arxiv","version":3},"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":"2026-05-18T02:33:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yf77m1bPvtu+abrRt16ePt46I46X0HsLrRtj0YGdMkRnTL50DP2A7lyZPZxlmcn0WxYIzllG7v5Ispphb0zGAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T00:38:25.907736Z"},"content_sha256":"f916dda29f5f1793abaa9e9dd473b9633da6578a16034c302ae14e52944c44a7","schema_version":"1.0","event_id":"sha256:f916dda29f5f1793abaa9e9dd473b9633da6578a16034c302ae14e52944c44a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OTZPI6ETFBZQXULSQXR6NJ47FW/bundle.json","state_url":"https://pith.science/pith/OTZPI6ETFBZQXULSQXR6NJ47FW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OTZPI6ETFBZQXULSQXR6NJ47FW/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":"2026-05-22T00:38:25Z","links":{"resolver":"https://pith.science/pith/OTZPI6ETFBZQXULSQXR6NJ47FW","bundle":"https://pith.science/pith/OTZPI6ETFBZQXULSQXR6NJ47FW/bundle.json","state":"https://pith.science/pith/OTZPI6ETFBZQXULSQXR6NJ47FW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OTZPI6ETFBZQXULSQXR6NJ47FW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:OTZPI6ETFBZQXULSQXR6NJ47FW","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":"f63ffba7af1cbf7194080cdb61be81ca052518b1c5a30aa454b14ccfbe5dab32","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-03-31T15:12:42Z","title_canon_sha256":"18ed2b019a16eb56420b03a1f84dc385eb2a820408f390ac19ad50531e926895"},"schema_version":"1.0","source":{"id":"1003.6075","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.6075","created_at":"2026-05-18T02:33:39Z"},{"alias_kind":"arxiv_version","alias_value":"1003.6075v3","created_at":"2026-05-18T02:33:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.6075","created_at":"2026-05-18T02:33:39Z"},{"alias_kind":"pith_short_12","alias_value":"OTZPI6ETFBZQ","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OTZPI6ETFBZQXULS","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OTZPI6ET","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:f916dda29f5f1793abaa9e9dd473b9633da6578a16034c302ae14e52944c44a7","target":"graph","created_at":"2026-05-18T02:33:39Z","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 reconsider a class of heterotic string theories studied in 1989, based on tensor products of N=2 minimal models with asymmetric simple current invariants. We extend this analysis from (2,2) and (1,2) spectra to (0,2) spectra with SO(10) broken to the Standard Model. In the latter case the spectrum must contain fractionally charged particles. We find that in nearly all cases at least some of them are massless. However, we identify a large subclass where the fractional charges are at worst half-integer, and often vector-like. The number of families is very often reduced in comparison to the 1","authors_text":"A.N. Schellekens, B. Gato-Rivera","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-03-31T15:12:42Z","title":"Asymmetric Gepner Models (Revisited)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.6075","kind":"arxiv","version":3},"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:a48ece08181f2f442b30147e7837b125a911d34856df022899dad88bbec3f4e3","target":"record","created_at":"2026-05-18T02:33:39Z","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":"f63ffba7af1cbf7194080cdb61be81ca052518b1c5a30aa454b14ccfbe5dab32","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-03-31T15:12:42Z","title_canon_sha256":"18ed2b019a16eb56420b03a1f84dc385eb2a820408f390ac19ad50531e926895"},"schema_version":"1.0","source":{"id":"1003.6075","kind":"arxiv","version":3}},"canonical_sha256":"74f2f4789328730bd17285e3e6a79f2da206aee747a2085d7740594672a3e1c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74f2f4789328730bd17285e3e6a79f2da206aee747a2085d7740594672a3e1c1","first_computed_at":"2026-05-18T02:33:39.915155Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:39.915155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"22XuO9J0BOCPt3i/1ytxh4gWYOZ8MZA0hq73XtUdJ1YUrwOjLWze1F/vrSWVB0PX0husXi2z12Cmg3Ewqa29CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:39.915790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.6075","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a48ece08181f2f442b30147e7837b125a911d34856df022899dad88bbec3f4e3","sha256:f916dda29f5f1793abaa9e9dd473b9633da6578a16034c302ae14e52944c44a7"],"state_sha256":"76ba1e0a1c791841264da0773e06155c51c1246e372af764084c11764816d111"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jY1dnyQEyZnNhuhxbofcMAO1kETzY6k+mc1HoUggB580mQt27niLPcHho3l0ltYkETyHCQVolGn1RJq81t3eCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T00:38:25.911145Z","bundle_sha256":"b39e83b9396150ff8c6dc45f09a00c11ee209419bec366c9e36e938b2c88a7bf"}}