{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1999:KA5TRTLCF7K434R5TPXJCVAA75","short_pith_number":"pith:KA5TRTLC","schema_version":"1.0","canonical_sha256":"503b38cd622fd5cdf23d9bee915400ff457f2379babf54f2549f5843761b01d7","source":{"kind":"arxiv","id":"hep-ph/9908305","version":2},"attestation_state":"computed","paper":{"title":"Anomalous U(1)'s and Proton Stability in Brane Models","license":"","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"Fernando Quevedo, Luis Ibanez","submitted_at":"1999-08-09T14:53:40Z","abstract_excerpt":"We consider the most general generation-independent U(1) gauge symmetry consistent with the presence of Yukawa couplings for all quarks and leptons in the SUSY version of the Standard Model. This U(1) has generically mixed anomalies with SM groups, which cannot be cancelled by the Green-Schwarz mechanism of heterotic D=4 strings. We argue that these anomalies can in principle be cancelled by the generalized Green-Schwarz mechanism present in field theories corresponding to D-branes at singularities. Moreover, unlike the heterotic case, once the U(1) symmetry is broken it may remain as an exact"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"hep-ph/9908305","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1999-08-09T14:53:40Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"8bbf6fa6fb3a952e52db97c8ec028c46ea4537cb98fe98b67c42cff7f360b68c","abstract_canon_sha256":"70df70b84feb447f79212c180e4fc58d5b5451fa0de7908c8e29424ed437bb3e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:14:25.700280Z","signature_b64":"eY/dFDdqHeVKOX0OTc+Kq5NSz48AXKE6r3rYGJ5j3PMsOTDnb/3fYZVitLwXTWZ7bQvLSUCzB+wS7NQA07fVBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"503b38cd622fd5cdf23d9bee915400ff457f2379babf54f2549f5843761b01d7","last_reissued_at":"2026-07-04T16:14:25.699893Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:14:25.699893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Anomalous U(1)'s and Proton Stability in Brane Models","license":"","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"Fernando Quevedo, Luis Ibanez","submitted_at":"1999-08-09T14:53:40Z","abstract_excerpt":"We consider the most general generation-independent U(1) gauge symmetry consistent with the presence of Yukawa couplings for all quarks and leptons in the SUSY version of the Standard Model. This U(1) has generically mixed anomalies with SM groups, which cannot be cancelled by the Green-Schwarz mechanism of heterotic D=4 strings. We argue that these anomalies can in principle be cancelled by the generalized Green-Schwarz mechanism present in field theories corresponding to D-branes at singularities. Moreover, unlike the heterotic case, once the U(1) symmetry is broken it may remain as an exact"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9908305","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/9908305/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9908305","created_at":"2026-07-04T16:14:25.699948+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9908305v2","created_at":"2026-07-04T16:14:25.699948+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9908305","created_at":"2026-07-04T16:14:25.699948+00:00"},{"alias_kind":"pith_short_12","alias_value":"KA5TRTLCF7K4","created_at":"2026-07-04T16:14:25.699948+00:00"},{"alias_kind":"pith_short_16","alias_value":"KA5TRTLCF7K434R5","created_at":"2026-07-04T16:14:25.699948+00:00"},{"alias_kind":"pith_short_8","alias_value":"KA5TRTLC","created_at":"2026-07-04T16:14:25.699948+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75","json":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75.json","graph_json":"https://pith.science/api/pith-number/KA5TRTLCF7K434R5TPXJCVAA75/graph.json","events_json":"https://pith.science/api/pith-number/KA5TRTLCF7K434R5TPXJCVAA75/events.json","paper":"https://pith.science/paper/KA5TRTLC"},"agent_actions":{"view_html":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75","download_json":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75.json","view_paper":"https://pith.science/paper/KA5TRTLC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/9908305&json=true","fetch_graph":"https://pith.science/api/pith-number/KA5TRTLCF7K434R5TPXJCVAA75/graph.json","fetch_events":"https://pith.science/api/pith-number/KA5TRTLCF7K434R5TPXJCVAA75/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75/action/storage_attestation","attest_author":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75/action/author_attestation","sign_citation":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75/action/citation_signature","submit_replication":"https://pith.science/pith/KA5TRTLCF7K434R5TPXJCVAA75/action/replication_record"}},"created_at":"2026-07-04T16:14:25.699948+00:00","updated_at":"2026-07-04T16:14:25.699948+00:00"}