{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:GEHK55HGAB6HAEYCVBGDFESK56","short_pith_number":"pith:GEHK55HG","canonical_record":{"source":{"id":"physics/0604048","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.gen-ph","submitted_at":"2006-04-06T14:30:11Z","cross_cats_sorted":[],"title_canon_sha256":"69c9bce6b9e975110014cd8e816374a876ef5faf0dd167b45b879e3f712239fb","abstract_canon_sha256":"87ca3fd9cce68ce0e8cdcfbcc93d89f03020d23d3d62ffb32359c41b9bb48f2a"},"schema_version":"1.0"},"canonical_sha256":"310eaef4e6007c701302a84c32924aefa4eb3b89a9542a336cb6c07709575acd","source":{"kind":"arxiv","id":"physics/0604048","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0604048","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0604048v1","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0604048","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"pith_short_12","alias_value":"GEHK55HGAB6H","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"pith_short_16","alias_value":"GEHK55HGAB6HAEYC","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"pith_short_8","alias_value":"GEHK55HG","created_at":"2026-07-04T14:54:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:GEHK55HGAB6HAEYCVBGDFESK56","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0604048","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.gen-ph","submitted_at":"2006-04-06T14:30:11Z","cross_cats_sorted":[],"title_canon_sha256":"69c9bce6b9e975110014cd8e816374a876ef5faf0dd167b45b879e3f712239fb","abstract_canon_sha256":"87ca3fd9cce68ce0e8cdcfbcc93d89f03020d23d3d62ffb32359c41b9bb48f2a"},"schema_version":"1.0"},"canonical_sha256":"310eaef4e6007c701302a84c32924aefa4eb3b89a9542a336cb6c07709575acd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:54:40.331042Z","signature_b64":"8JZV6tGLat8VjYxilOD9KcrnJxrq4L7iS0GB7DCccrFQ9wwi/NfNjTJmoHTS0IrGDqs0p8NphIZj8OCnsVYRCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"310eaef4e6007c701302a84c32924aefa4eb3b89a9542a336cb6c07709575acd","last_reissued_at":"2026-07-04T14:54:40.330527Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:54:40.330527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0604048","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":"2026-07-04T14:54:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lMmUz0dlbjyPVggnsImukCRxz6sLbdQQLiz5E/+COlYAAmnlEhdjEYsbSxDlF+pXVLg0/IAFD5AszUGiRzlzAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-29T11:57:44.436778Z"},"content_sha256":"ab0ba110ebcd668f02521dd8f5abb6e19f50417d6a37a5c3716bee7dcb5dfd33","schema_version":"1.0","event_id":"sha256:ab0ba110ebcd668f02521dd8f5abb6e19f50417d6a37a5c3716bee7dcb5dfd33"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:GEHK55HGAB6HAEYCVBGDFESK56","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extension of Dirac theory and the classification of elementary particles","license":"","headline":"","cross_cats":[],"primary_cat":"physics.gen-ph","authors_text":"Janet Pan, Lu Lin","submitted_at":"2006-04-06T14:30:11Z","abstract_excerpt":"The Dirac theory implies the existence of an internal vector space, in addition to spin space. Using Dirac's coupling of variables in internal space to those in physical space, we construct a new configuration structure for particles in the combined physical plus internal spaces. The importance of this is that the internal degrees of freedom implicit in Dirac's theory allow a new classification of elementary particles. An important consequence is the prediction of a new type of quark. As expected, our theory groups fermions into doublets, which are then divided into color singlets (leptons) an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0604048","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/physics/0604048/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":"2026-07-04T14:54:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PSftUIAfc9b0afEwwdAl2e0FOScWO2XACkDltHxy065Dlso3Bm94ituz54bzubMBfCnvTRIocjLIxjgT7udQAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-29T11:57:44.437398Z"},"content_sha256":"93164f0aefacdc70095efaebe94a05ba8b4f4b092ab06ed264033825b437e740","schema_version":"1.0","event_id":"sha256:93164f0aefacdc70095efaebe94a05ba8b4f4b092ab06ed264033825b437e740"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GEHK55HGAB6HAEYCVBGDFESK56/bundle.json","state_url":"https://pith.science/pith/GEHK55HGAB6HAEYCVBGDFESK56/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GEHK55HGAB6HAEYCVBGDFESK56/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":"2026-07-29T11:57:44Z","links":{"resolver":"https://pith.science/pith/GEHK55HGAB6HAEYCVBGDFESK56","bundle":"https://pith.science/pith/GEHK55HGAB6HAEYCVBGDFESK56/bundle.json","state":"https://pith.science/pith/GEHK55HGAB6HAEYCVBGDFESK56/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GEHK55HGAB6HAEYCVBGDFESK56/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:GEHK55HGAB6HAEYCVBGDFESK56","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":"87ca3fd9cce68ce0e8cdcfbcc93d89f03020d23d3d62ffb32359c41b9bb48f2a","cross_cats_sorted":[],"license":"","primary_cat":"physics.gen-ph","submitted_at":"2006-04-06T14:30:11Z","title_canon_sha256":"69c9bce6b9e975110014cd8e816374a876ef5faf0dd167b45b879e3f712239fb"},"schema_version":"1.0","source":{"id":"physics/0604048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0604048","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0604048v1","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0604048","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"pith_short_12","alias_value":"GEHK55HGAB6H","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"pith_short_16","alias_value":"GEHK55HGAB6HAEYC","created_at":"2026-07-04T14:54:40Z"},{"alias_kind":"pith_short_8","alias_value":"GEHK55HG","created_at":"2026-07-04T14:54:40Z"}],"graph_snapshots":[{"event_id":"sha256:93164f0aefacdc70095efaebe94a05ba8b4f4b092ab06ed264033825b437e740","target":"graph","created_at":"2026-07-04T14:54:40Z","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/physics/0604048/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Dirac theory implies the existence of an internal vector space, in addition to spin space. Using Dirac's coupling of variables in internal space to those in physical space, we construct a new configuration structure for particles in the combined physical plus internal spaces. The importance of this is that the internal degrees of freedom implicit in Dirac's theory allow a new classification of elementary particles. An important consequence is the prediction of a new type of quark. As expected, our theory groups fermions into doublets, which are then divided into color singlets (leptons) an","authors_text":"Janet Pan, Lu Lin","cross_cats":[],"headline":"","license":"","primary_cat":"physics.gen-ph","submitted_at":"2006-04-06T14:30:11Z","title":"Extension of Dirac theory and the classification of elementary particles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0604048","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:ab0ba110ebcd668f02521dd8f5abb6e19f50417d6a37a5c3716bee7dcb5dfd33","target":"record","created_at":"2026-07-04T14:54:40Z","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":"87ca3fd9cce68ce0e8cdcfbcc93d89f03020d23d3d62ffb32359c41b9bb48f2a","cross_cats_sorted":[],"license":"","primary_cat":"physics.gen-ph","submitted_at":"2006-04-06T14:30:11Z","title_canon_sha256":"69c9bce6b9e975110014cd8e816374a876ef5faf0dd167b45b879e3f712239fb"},"schema_version":"1.0","source":{"id":"physics/0604048","kind":"arxiv","version":1}},"canonical_sha256":"310eaef4e6007c701302a84c32924aefa4eb3b89a9542a336cb6c07709575acd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"310eaef4e6007c701302a84c32924aefa4eb3b89a9542a336cb6c07709575acd","first_computed_at":"2026-07-04T14:54:40.330527Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:54:40.330527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8JZV6tGLat8VjYxilOD9KcrnJxrq4L7iS0GB7DCccrFQ9wwi/NfNjTJmoHTS0IrGDqs0p8NphIZj8OCnsVYRCw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:54:40.331042Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0604048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab0ba110ebcd668f02521dd8f5abb6e19f50417d6a37a5c3716bee7dcb5dfd33","sha256:93164f0aefacdc70095efaebe94a05ba8b4f4b092ab06ed264033825b437e740"],"state_sha256":"f8f7eb409cd1d63223557b7db829522f8aa9640ca19821bc215c1493084a78cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WbrOmIiuH57TjyRTZ839LE1GYamEkkiWyFLV13GKryPvrtgmsI+tgZ1CfH/51d1xUiEKQHWOd+BPLDybDtRDAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-29T11:57:44.442507Z","bundle_sha256":"fa6b372ef26d2e2a98abf4ce8c381d5e82f1f808743cced57c7d6cdab2918927"}}