{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:5SM3KV4XLQL22T7DMEFZNWEUTY","short_pith_number":"pith:5SM3KV4X","canonical_record":{"source":{"id":"hep-th/0007024","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2000-07-04T12:36:25Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"02a03de432c159bc9ab5db765044b90ca979cc0e089cff986b709aba3624623d","abstract_canon_sha256":"2da39280f0b68007aa0d3bdd485004144e2695ecf1e796141b76bdbb37b5c591"},"schema_version":"1.0"},"canonical_sha256":"ec99b557975c17ad4fe3610b96d8949e062a20fbc4b3952e58b9c0f6c1da9480","source":{"kind":"arxiv","id":"hep-th/0007024","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0007024","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0007024v1","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0007024","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"pith_short_12","alias_value":"5SM3KV4XLQL2","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"pith_short_16","alias_value":"5SM3KV4XLQL22T7D","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"pith_short_8","alias_value":"5SM3KV4X","created_at":"2026-07-04T16:20:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:5SM3KV4XLQL22T7DMEFZNWEUTY","target":"record","payload":{"canonical_record":{"source":{"id":"hep-th/0007024","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2000-07-04T12:36:25Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"02a03de432c159bc9ab5db765044b90ca979cc0e089cff986b709aba3624623d","abstract_canon_sha256":"2da39280f0b68007aa0d3bdd485004144e2695ecf1e796141b76bdbb37b5c591"},"schema_version":"1.0"},"canonical_sha256":"ec99b557975c17ad4fe3610b96d8949e062a20fbc4b3952e58b9c0f6c1da9480","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:20:56.864192Z","signature_b64":"hOH2yWvz8h3QarNHlnP6faAY31kgS7WE7fSrcQB1h8Lb1lJsJvwqdXdw9JMocX51HTW8gIU17b+HTNFt2LIuDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec99b557975c17ad4fe3610b96d8949e062a20fbc4b3952e58b9c0f6c1da9480","last_reissued_at":"2026-07-04T16:20:56.863800Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:20:56.863800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-th/0007024","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":"2026-07-04T16:20:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RjHotg9rDPfj7a13c8ZKtJbiRHQmMNGB2svTbiFScIuWQryBeOSUoEX4+yFOnr9y47VubwtR0h5eGgagnvcBDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T01:50:00.915310Z"},"content_sha256":"1724efd19155f0d886b52a3fe392c301da826f85062bb33769f463a5b1358772","schema_version":"1.0","event_id":"sha256:1724efd19155f0d886b52a3fe392c301da826f85062bb33769f463a5b1358772"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:5SM3KV4XLQL22T7DMEFZNWEUTY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Noncommutative Compactifications of Type I Strings on Tori with Magnetic Background Flux","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-th","authors_text":"Berlin), Boris Kors, Dieter Lust (Humboldt U., Lars Goerlich, Ralph Blumenhagen","submitted_at":"2000-07-04T12:36:25Z","abstract_excerpt":"We construct six- and four-dimensional toroidal compactifications of the Type I string with magnetic flux on the D-branes. The open strings in this background probe a noncommutative internal geometry. Phenomenologically appealing features such as chiral fermions and supersymmetry breaking in the gauge sector are naturally realized by these vacua. We investigate the spectra of such noncommutative string compactifications and in a bottom-up approach discuss the possibility to obtain the standard or some GUT like model."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0007024","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/hep-th/0007024/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":"2026-07-04T16:20:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+PNPav0b/nB+gaLQpNC6W3NZZgJcy6mIrL2NmEwYTSeVkRA0O3EIS/JTSIOJddReRBEa/xi/vDUNEUA9INb1BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T01:50:00.916358Z"},"content_sha256":"a7b2c351daabc5c9952e13c9dc4678b0f368016b934b19c6f87f2de3d05dedea","schema_version":"1.0","event_id":"sha256:a7b2c351daabc5c9952e13c9dc4678b0f368016b934b19c6f87f2de3d05dedea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5SM3KV4XLQL22T7DMEFZNWEUTY/bundle.json","state_url":"https://pith.science/pith/5SM3KV4XLQL22T7DMEFZNWEUTY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5SM3KV4XLQL22T7DMEFZNWEUTY/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":"2026-08-10T01:50:00Z","links":{"resolver":"https://pith.science/pith/5SM3KV4XLQL22T7DMEFZNWEUTY","bundle":"https://pith.science/pith/5SM3KV4XLQL22T7DMEFZNWEUTY/bundle.json","state":"https://pith.science/pith/5SM3KV4XLQL22T7DMEFZNWEUTY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5SM3KV4XLQL22T7DMEFZNWEUTY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:5SM3KV4XLQL22T7DMEFZNWEUTY","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":"2da39280f0b68007aa0d3bdd485004144e2695ecf1e796141b76bdbb37b5c591","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"hep-th","submitted_at":"2000-07-04T12:36:25Z","title_canon_sha256":"02a03de432c159bc9ab5db765044b90ca979cc0e089cff986b709aba3624623d"},"schema_version":"1.0","source":{"id":"hep-th/0007024","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0007024","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0007024v1","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0007024","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"pith_short_12","alias_value":"5SM3KV4XLQL2","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"pith_short_16","alias_value":"5SM3KV4XLQL22T7D","created_at":"2026-07-04T16:20:56Z"},{"alias_kind":"pith_short_8","alias_value":"5SM3KV4X","created_at":"2026-07-04T16:20:56Z"}],"graph_snapshots":[{"event_id":"sha256:a7b2c351daabc5c9952e13c9dc4678b0f368016b934b19c6f87f2de3d05dedea","target":"graph","created_at":"2026-07-04T16:20:56Z","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/hep-th/0007024/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We construct six- and four-dimensional toroidal compactifications of the Type I string with magnetic flux on the D-branes. The open strings in this background probe a noncommutative internal geometry. Phenomenologically appealing features such as chiral fermions and supersymmetry breaking in the gauge sector are naturally realized by these vacua. We investigate the spectra of such noncommutative string compactifications and in a bottom-up approach discuss the possibility to obtain the standard or some GUT like model.","authors_text":"Berlin), Boris Kors, Dieter Lust (Humboldt U., Lars Goerlich, Ralph Blumenhagen","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2000-07-04T12:36:25Z","title":"Noncommutative Compactifications of Type I Strings on Tori with Magnetic Background Flux"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0007024","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":"sha256:1724efd19155f0d886b52a3fe392c301da826f85062bb33769f463a5b1358772","target":"record","created_at":"2026-07-04T16:20:56Z","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":"2da39280f0b68007aa0d3bdd485004144e2695ecf1e796141b76bdbb37b5c591","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"hep-th","submitted_at":"2000-07-04T12:36:25Z","title_canon_sha256":"02a03de432c159bc9ab5db765044b90ca979cc0e089cff986b709aba3624623d"},"schema_version":"1.0","source":{"id":"hep-th/0007024","kind":"arxiv","version":1}},"canonical_sha256":"ec99b557975c17ad4fe3610b96d8949e062a20fbc4b3952e58b9c0f6c1da9480","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec99b557975c17ad4fe3610b96d8949e062a20fbc4b3952e58b9c0f6c1da9480","first_computed_at":"2026-07-04T16:20:56.863800Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:20:56.863800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hOH2yWvz8h3QarNHlnP6faAY31kgS7WE7fSrcQB1h8Lb1lJsJvwqdXdw9JMocX51HTW8gIU17b+HTNFt2LIuDA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:20:56.864192Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/0007024","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1724efd19155f0d886b52a3fe392c301da826f85062bb33769f463a5b1358772","sha256:a7b2c351daabc5c9952e13c9dc4678b0f368016b934b19c6f87f2de3d05dedea"],"state_sha256":"95211b66cb01e521c08904a7c9893c0e5f17db1443cbc73b72ed81b1dbf18a41"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7oPyPQZ+dLaxvYq9NBk4WFN+IAzlUDcFQyC1WCiMUFnPSVZ8K4w/IbQS7m8ehi1CCpapxnKBEW3IBqw76QMLAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T01:50:00.922374Z","bundle_sha256":"45972945a00ff17e2056a69f7134131e60014bc681616dee86612fe1395eab98"}}