{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:N4UOBOMDHVCHBCGMAHPFKR3UJA","short_pith_number":"pith:N4UOBOMD","canonical_record":{"source":{"id":"1505.03403","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-05-13T14:37:14Z","cross_cats_sorted":[],"title_canon_sha256":"0810c4716eeded3341721e0c3e0621f2fbad67eb17e9174a3d85b1eba9265688","abstract_canon_sha256":"521613d4ad4c21baa1671ac7dbfcad5c9dfdce38416d7fce7d65c805ee18973c"},"schema_version":"1.0"},"canonical_sha256":"6f28e0b9833d447088cc01de5547744820cc268a714aa1a708b9e507fa0c81ff","source":{"kind":"arxiv","id":"1505.03403","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.03403","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"arxiv_version","alias_value":"1505.03403v2","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.03403","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"pith_short_12","alias_value":"N4UOBOMDHVCH","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"N4UOBOMDHVCHBCGM","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"N4UOBOMD","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:N4UOBOMDHVCHBCGMAHPFKR3UJA","target":"record","payload":{"canonical_record":{"source":{"id":"1505.03403","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-05-13T14:37:14Z","cross_cats_sorted":[],"title_canon_sha256":"0810c4716eeded3341721e0c3e0621f2fbad67eb17e9174a3d85b1eba9265688","abstract_canon_sha256":"521613d4ad4c21baa1671ac7dbfcad5c9dfdce38416d7fce7d65c805ee18973c"},"schema_version":"1.0"},"canonical_sha256":"6f28e0b9833d447088cc01de5547744820cc268a714aa1a708b9e507fa0c81ff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:09.959104Z","signature_b64":"wpL6Odcqm15T//iMGOJWP3fA2JjZrkEnj3LxeOSRhQzAfvUTyHfx9OBIi4eNI7Z/E/veqCEiCgBjEUsGZvvvAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f28e0b9833d447088cc01de5547744820cc268a714aa1a708b9e507fa0c81ff","last_reissued_at":"2026-05-18T01:35:09.958450Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:09.958450Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.03403","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":"2026-05-18T01:35:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iD2d6cgK3GfkA875BJ90+bq7IczFdLE+6pEtEeAnJqC9axwPJYmIVGo868wHWeqYigiS8IULtCweoHFNbFq2Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:44:31.559607Z"},"content_sha256":"7c523722cd70ccc5635706e229cd36c0567168deb54e8a900e30f0480214785e","schema_version":"1.0","event_id":"sha256:7c523722cd70ccc5635706e229cd36c0567168deb54e8a900e30f0480214785e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:N4UOBOMDHVCHBCGMAHPFKR3UJA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Grand Unification and Exotic Fermions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Robert P. Feger, Thomas W. Kephart","submitted_at":"2015-05-13T14:37:14Z","abstract_excerpt":"We exploit the recently developed software package LieART to show that SU(N) grand unified theories with chiral fermions in mixed tensor irreducible representations can lead to standard model chiral fermions without additional light exotic chiral fermions, i.e., only standard model fermions are light in these models. Results are tabulated which may be of use to model builders in the future. An SU(6) toy model is given and model searches are discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.03403","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":"2026-05-18T01:35:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cScOyUgEboMkgZxp+MPTsvMwC190UoULEOD/49qwp/EANJ/SLxSsb5XJwjTwA1qcIadNiL7pS2NpAOlKZGPSBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:44:31.559961Z"},"content_sha256":"fae5a224667d9832f7e2baacee67a50a75efb80ab6c48bb564e00e288a62787f","schema_version":"1.0","event_id":"sha256:fae5a224667d9832f7e2baacee67a50a75efb80ab6c48bb564e00e288a62787f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N4UOBOMDHVCHBCGMAHPFKR3UJA/bundle.json","state_url":"https://pith.science/pith/N4UOBOMDHVCHBCGMAHPFKR3UJA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N4UOBOMDHVCHBCGMAHPFKR3UJA/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":"2026-05-31T04:44:31Z","links":{"resolver":"https://pith.science/pith/N4UOBOMDHVCHBCGMAHPFKR3UJA","bundle":"https://pith.science/pith/N4UOBOMDHVCHBCGMAHPFKR3UJA/bundle.json","state":"https://pith.science/pith/N4UOBOMDHVCHBCGMAHPFKR3UJA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N4UOBOMDHVCHBCGMAHPFKR3UJA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:N4UOBOMDHVCHBCGMAHPFKR3UJA","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":"521613d4ad4c21baa1671ac7dbfcad5c9dfdce38416d7fce7d65c805ee18973c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-05-13T14:37:14Z","title_canon_sha256":"0810c4716eeded3341721e0c3e0621f2fbad67eb17e9174a3d85b1eba9265688"},"schema_version":"1.0","source":{"id":"1505.03403","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.03403","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"arxiv_version","alias_value":"1505.03403v2","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.03403","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"pith_short_12","alias_value":"N4UOBOMDHVCH","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"N4UOBOMDHVCHBCGM","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"N4UOBOMD","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:fae5a224667d9832f7e2baacee67a50a75efb80ab6c48bb564e00e288a62787f","target":"graph","created_at":"2026-05-18T01:35:09Z","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 exploit the recently developed software package LieART to show that SU(N) grand unified theories with chiral fermions in mixed tensor irreducible representations can lead to standard model chiral fermions without additional light exotic chiral fermions, i.e., only standard model fermions are light in these models. Results are tabulated which may be of use to model builders in the future. An SU(6) toy model is given and model searches are discussed.","authors_text":"Robert P. Feger, Thomas W. Kephart","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-05-13T14:37:14Z","title":"Grand Unification and Exotic Fermions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.03403","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":"sha256:7c523722cd70ccc5635706e229cd36c0567168deb54e8a900e30f0480214785e","target":"record","created_at":"2026-05-18T01:35:09Z","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":"521613d4ad4c21baa1671ac7dbfcad5c9dfdce38416d7fce7d65c805ee18973c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-05-13T14:37:14Z","title_canon_sha256":"0810c4716eeded3341721e0c3e0621f2fbad67eb17e9174a3d85b1eba9265688"},"schema_version":"1.0","source":{"id":"1505.03403","kind":"arxiv","version":2}},"canonical_sha256":"6f28e0b9833d447088cc01de5547744820cc268a714aa1a708b9e507fa0c81ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f28e0b9833d447088cc01de5547744820cc268a714aa1a708b9e507fa0c81ff","first_computed_at":"2026-05-18T01:35:09.958450Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:09.958450Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wpL6Odcqm15T//iMGOJWP3fA2JjZrkEnj3LxeOSRhQzAfvUTyHfx9OBIi4eNI7Z/E/veqCEiCgBjEUsGZvvvAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:09.959104Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.03403","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c523722cd70ccc5635706e229cd36c0567168deb54e8a900e30f0480214785e","sha256:fae5a224667d9832f7e2baacee67a50a75efb80ab6c48bb564e00e288a62787f"],"state_sha256":"507ffa65023a587636c54ae20a87bfbc7faaaf124a8a313d4e14a50b2ea801ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Dj/dg8n4azcfvwanIFboAq10bac03eYrX+BLLvhZnmrsK9QTwWzNto+k2aesig+z3S84SeF/0Vbt8jN0pKUCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T04:44:31.561952Z","bundle_sha256":"e206d179e2b6f6ed8ce0dae3db176aa88a4ae037271181c2545e2d3bf612bc98"}}