{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:AST64YRPOJLD2SYTBYUHULPUUF","short_pith_number":"pith:AST64YRP","canonical_record":{"source":{"id":"2507.03076","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2025-07-03T18:00:03Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7171b0efe513b222ac00f45eda70544bcfa14fc5660fad2949335665c12a7484","abstract_canon_sha256":"ff55974f824dce69154f9f7cee5fb496aea766bc626bd22f39e8a0731dd6c8be"},"schema_version":"1.0"},"canonical_sha256":"04a7ee622f72563d4b130e287a2df4a17108c648496f3ebc189c05a8dbde75f7","source":{"kind":"arxiv","id":"2507.03076","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.03076","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"arxiv_version","alias_value":"2507.03076v1","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.03076","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"pith_short_12","alias_value":"AST64YRPOJLD","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"pith_short_16","alias_value":"AST64YRPOJLD2SYT","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"pith_short_8","alias_value":"AST64YRP","created_at":"2026-07-05T11:31:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:AST64YRPOJLD2SYTBYUHULPUUF","target":"record","payload":{"canonical_record":{"source":{"id":"2507.03076","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2025-07-03T18:00:03Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7171b0efe513b222ac00f45eda70544bcfa14fc5660fad2949335665c12a7484","abstract_canon_sha256":"ff55974f824dce69154f9f7cee5fb496aea766bc626bd22f39e8a0731dd6c8be"},"schema_version":"1.0"},"canonical_sha256":"04a7ee622f72563d4b130e287a2df4a17108c648496f3ebc189c05a8dbde75f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:31:52.233345Z","signature_b64":"inrev/U+aEIhA92FBHTsTEo37aLIiIt5u+KfKUQ4v1UjJXz2zPgwBCCOOf5HLLy1vD31lkLtJGeLMLj6BdDTDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04a7ee622f72563d4b130e287a2df4a17108c648496f3ebc189c05a8dbde75f7","last_reissued_at":"2026-07-05T11:31:52.232899Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:31:52.232899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.03076","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":"2026-07-05T11:31:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X5uuGOzQQYw+umKr+i4MJt9ZZYfjZ/lQywVPGOth14pOdgJlnVVWpDDyrcaRMR+/Kd5wG9y0ufkJzeDeAVtMDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T07:17:06.370044Z"},"content_sha256":"b262863c24ae2b19ef5ae2aa2ed3633feaa7e0b582316d3d998597c365f0961c","schema_version":"1.0","event_id":"sha256:b262863c24ae2b19ef5ae2aa2ed3633feaa7e0b582316d3d998597c365f0961c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:AST64YRPOJLD2SYTBYUHULPUUF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reproducing Standard Model Fermion Masses and Mixing in String Theory: A Heterotic Line Bundle Study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-th","authors_text":"Andrei Constantin, Andre Lukas, Luca A. Nutricati, Lucas T.-Y. Leung","submitted_at":"2025-07-03T18:00:03Z","abstract_excerpt":"Deriving the Yukawa couplings and the resulting fermion masses and mixing angles of the Standard Model (SM) from a more fundamental theory remains one of the central outstanding problems in theoretical high-energy physics. It has long been recognised that string theory provides a framework within which this question can, at least in principle, be addressed. While substantial progress has been made in studying flavour physics in string compactifications over the past few decades, a concrete string construction that reproduces the full set of observed SM flavour parameters remains unknown. Here,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.03076","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/2507.03076/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":"2026-07-05T11:31:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6e0ogiMJl2/Cttm8boNEounJExW3aCKEA3Ul7zCrQtb8kfaonIPgc6AdK/5wUKwuzoyOT4CpaNxr8WJpXT0vBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T07:17:06.370598Z"},"content_sha256":"a79b75f22ea78ea91d6335cb3fd20aaf98cb29c4b6bf8d94804892c8e47b1e82","schema_version":"1.0","event_id":"sha256:a79b75f22ea78ea91d6335cb3fd20aaf98cb29c4b6bf8d94804892c8e47b1e82"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AST64YRPOJLD2SYTBYUHULPUUF/bundle.json","state_url":"https://pith.science/pith/AST64YRPOJLD2SYTBYUHULPUUF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AST64YRPOJLD2SYTBYUHULPUUF/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":"2026-08-07T07:17:06Z","links":{"resolver":"https://pith.science/pith/AST64YRPOJLD2SYTBYUHULPUUF","bundle":"https://pith.science/pith/AST64YRPOJLD2SYTBYUHULPUUF/bundle.json","state":"https://pith.science/pith/AST64YRPOJLD2SYTBYUHULPUUF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AST64YRPOJLD2SYTBYUHULPUUF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:AST64YRPOJLD2SYTBYUHULPUUF","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":"ff55974f824dce69154f9f7cee5fb496aea766bc626bd22f39e8a0731dd6c8be","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2025-07-03T18:00:03Z","title_canon_sha256":"7171b0efe513b222ac00f45eda70544bcfa14fc5660fad2949335665c12a7484"},"schema_version":"1.0","source":{"id":"2507.03076","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.03076","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"arxiv_version","alias_value":"2507.03076v1","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.03076","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"pith_short_12","alias_value":"AST64YRPOJLD","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"pith_short_16","alias_value":"AST64YRPOJLD2SYT","created_at":"2026-07-05T11:31:52Z"},{"alias_kind":"pith_short_8","alias_value":"AST64YRP","created_at":"2026-07-05T11:31:52Z"}],"graph_snapshots":[{"event_id":"sha256:a79b75f22ea78ea91d6335cb3fd20aaf98cb29c4b6bf8d94804892c8e47b1e82","target":"graph","created_at":"2026-07-05T11:31:52Z","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/2507.03076/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Deriving the Yukawa couplings and the resulting fermion masses and mixing angles of the Standard Model (SM) from a more fundamental theory remains one of the central outstanding problems in theoretical high-energy physics. It has long been recognised that string theory provides a framework within which this question can, at least in principle, be addressed. While substantial progress has been made in studying flavour physics in string compactifications over the past few decades, a concrete string construction that reproduces the full set of observed SM flavour parameters remains unknown. Here,","authors_text":"Andrei Constantin, Andre Lukas, Luca A. Nutricati, Lucas T.-Y. Leung","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2025-07-03T18:00:03Z","title":"Reproducing Standard Model Fermion Masses and Mixing in String Theory: A Heterotic Line Bundle Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.03076","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:b262863c24ae2b19ef5ae2aa2ed3633feaa7e0b582316d3d998597c365f0961c","target":"record","created_at":"2026-07-05T11:31:52Z","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":"ff55974f824dce69154f9f7cee5fb496aea766bc626bd22f39e8a0731dd6c8be","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2025-07-03T18:00:03Z","title_canon_sha256":"7171b0efe513b222ac00f45eda70544bcfa14fc5660fad2949335665c12a7484"},"schema_version":"1.0","source":{"id":"2507.03076","kind":"arxiv","version":1}},"canonical_sha256":"04a7ee622f72563d4b130e287a2df4a17108c648496f3ebc189c05a8dbde75f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04a7ee622f72563d4b130e287a2df4a17108c648496f3ebc189c05a8dbde75f7","first_computed_at":"2026-07-05T11:31:52.232899Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:31:52.232899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"inrev/U+aEIhA92FBHTsTEo37aLIiIt5u+KfKUQ4v1UjJXz2zPgwBCCOOf5HLLy1vD31lkLtJGeLMLj6BdDTDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:31:52.233345Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.03076","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b262863c24ae2b19ef5ae2aa2ed3633feaa7e0b582316d3d998597c365f0961c","sha256:a79b75f22ea78ea91d6335cb3fd20aaf98cb29c4b6bf8d94804892c8e47b1e82"],"state_sha256":"17250ffdb68968401caabb895b95bd64db7caba1a683c4aebc73578eba7d45dd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HhOYZNsTRRE0IzhdyUefAzg3vdYNP5EylOwCsNpiZuSPeWtw8/7EK02Dfeu19tiLCFBAEmoOtAQpmyDUidIEAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T07:17:06.375972Z","bundle_sha256":"d8cfaff3338d883e0bc39f85093c06ac120d062583551d1afdea902a20af4a96"}}