{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:UPDPL6WLNDJGOFCHQJR7PMSCNR","short_pith_number":"pith:UPDPL6WL","canonical_record":{"source":{"id":"1404.6300","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-04-25T01:17:16Z","cross_cats_sorted":[],"title_canon_sha256":"780117cb77eda23c72bd89ff58f25a3b648ba67a0006b9f9a89e436de7181f01","abstract_canon_sha256":"3724f745d79d0270ca764b29eb6ba25ee2a2ae6a10c32530f627a780af22bc4c"},"schema_version":"1.0"},"canonical_sha256":"a3c6f5facb68d26714478263f7b2426c6455c1029f0c653cc41885ad698a1a0c","source":{"kind":"arxiv","id":"1404.6300","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6300","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6300v4","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6300","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"pith_short_12","alias_value":"UPDPL6WLNDJG","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"UPDPL6WLNDJGOFCH","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"UPDPL6WL","created_at":"2026-05-18T12:28:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:UPDPL6WLNDJGOFCHQJR7PMSCNR","target":"record","payload":{"canonical_record":{"source":{"id":"1404.6300","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-04-25T01:17:16Z","cross_cats_sorted":[],"title_canon_sha256":"780117cb77eda23c72bd89ff58f25a3b648ba67a0006b9f9a89e436de7181f01","abstract_canon_sha256":"3724f745d79d0270ca764b29eb6ba25ee2a2ae6a10c32530f627a780af22bc4c"},"schema_version":"1.0"},"canonical_sha256":"a3c6f5facb68d26714478263f7b2426c6455c1029f0c653cc41885ad698a1a0c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:18:23.813963Z","signature_b64":"RyT56KcBLfenwEFtYD9oPQeeI6tGxMMoz0lcCsyRfFtA+Prxg1BH1CWMtT2imddIiaqB54VCqKKvSRIN+5h4DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3c6f5facb68d26714478263f7b2426c6455c1029f0c653cc41885ad698a1a0c","last_reissued_at":"2026-05-18T02:18:23.813364Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:18:23.813364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.6300","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:18:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iHF2H2NlNH6jJdPaH8bQZWu8j1AJWgRFVWK0fE/AeOFl0G8s3zfdDeP9CDOT+tcrQMD7ohN1FdcKvNtTOlyGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:33:05.226503Z"},"content_sha256":"5bdd60de5b31555ff324f7cd1482e7283cbc33feae896eaad2935661985eeaaa","schema_version":"1.0","event_id":"sha256:5bdd60de5b31555ff324f7cd1482e7283cbc33feae896eaad2935661985eeaaa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:UPDPL6WLNDJGOFCHQJR7PMSCNR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"6D F-theory models and elliptically fibered Calabi-Yau threefolds over semi-toric base surfaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Gabriella Martini, Washington Taylor","submitted_at":"2014-04-25T01:17:16Z","abstract_excerpt":"We carry out a systematic study of a class of 6D F-theory models and associated Calabi-Yau threefolds that are constructed using base surfaces with a generalization of toric structure. In particular, we determine all smooth surfaces with a structure invariant under a single C^* action (sometimes called \"T-varieties\" in the mathematical literature) that can act as bases for an elliptic fibration with section of a Calabi-Yau threefold. We identify 162,404 distinct bases, which include as a subset the previously studied set of strictly toric bases. Calabi-Yau threefolds constructed in this fashio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6300","kind":"arxiv","version":4},"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":"2026-05-18T02:18:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dxJdroz/Bst7bFfk7+EAs6oyUZ1BYatzEF3fkLqpPiIGHJCte+Wa9TCV2cRzu4KxVukGI4XYfK4r203uYYc5Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:33:05.227184Z"},"content_sha256":"fed138162294824afb9bc2e16a9cb3ebe1f2eadb942fa5628ba1c13b099a3136","schema_version":"1.0","event_id":"sha256:fed138162294824afb9bc2e16a9cb3ebe1f2eadb942fa5628ba1c13b099a3136"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UPDPL6WLNDJGOFCHQJR7PMSCNR/bundle.json","state_url":"https://pith.science/pith/UPDPL6WLNDJGOFCHQJR7PMSCNR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UPDPL6WLNDJGOFCHQJR7PMSCNR/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":"2026-05-26T12:33:05Z","links":{"resolver":"https://pith.science/pith/UPDPL6WLNDJGOFCHQJR7PMSCNR","bundle":"https://pith.science/pith/UPDPL6WLNDJGOFCHQJR7PMSCNR/bundle.json","state":"https://pith.science/pith/UPDPL6WLNDJGOFCHQJR7PMSCNR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UPDPL6WLNDJGOFCHQJR7PMSCNR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:UPDPL6WLNDJGOFCHQJR7PMSCNR","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":"3724f745d79d0270ca764b29eb6ba25ee2a2ae6a10c32530f627a780af22bc4c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-04-25T01:17:16Z","title_canon_sha256":"780117cb77eda23c72bd89ff58f25a3b648ba67a0006b9f9a89e436de7181f01"},"schema_version":"1.0","source":{"id":"1404.6300","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6300","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6300v4","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6300","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"pith_short_12","alias_value":"UPDPL6WLNDJG","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"UPDPL6WLNDJGOFCH","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"UPDPL6WL","created_at":"2026-05-18T12:28:52Z"}],"graph_snapshots":[{"event_id":"sha256:fed138162294824afb9bc2e16a9cb3ebe1f2eadb942fa5628ba1c13b099a3136","target":"graph","created_at":"2026-05-18T02:18:23Z","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 carry out a systematic study of a class of 6D F-theory models and associated Calabi-Yau threefolds that are constructed using base surfaces with a generalization of toric structure. In particular, we determine all smooth surfaces with a structure invariant under a single C^* action (sometimes called \"T-varieties\" in the mathematical literature) that can act as bases for an elliptic fibration with section of a Calabi-Yau threefold. We identify 162,404 distinct bases, which include as a subset the previously studied set of strictly toric bases. Calabi-Yau threefolds constructed in this fashio","authors_text":"Gabriella Martini, Washington Taylor","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-04-25T01:17:16Z","title":"6D F-theory models and elliptically fibered Calabi-Yau threefolds over semi-toric base surfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6300","kind":"arxiv","version":4},"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":"sha256:5bdd60de5b31555ff324f7cd1482e7283cbc33feae896eaad2935661985eeaaa","target":"record","created_at":"2026-05-18T02:18:23Z","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":"3724f745d79d0270ca764b29eb6ba25ee2a2ae6a10c32530f627a780af22bc4c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-04-25T01:17:16Z","title_canon_sha256":"780117cb77eda23c72bd89ff58f25a3b648ba67a0006b9f9a89e436de7181f01"},"schema_version":"1.0","source":{"id":"1404.6300","kind":"arxiv","version":4}},"canonical_sha256":"a3c6f5facb68d26714478263f7b2426c6455c1029f0c653cc41885ad698a1a0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3c6f5facb68d26714478263f7b2426c6455c1029f0c653cc41885ad698a1a0c","first_computed_at":"2026-05-18T02:18:23.813364Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:23.813364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RyT56KcBLfenwEFtYD9oPQeeI6tGxMMoz0lcCsyRfFtA+Prxg1BH1CWMtT2imddIiaqB54VCqKKvSRIN+5h4DA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:23.813963Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.6300","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5bdd60de5b31555ff324f7cd1482e7283cbc33feae896eaad2935661985eeaaa","sha256:fed138162294824afb9bc2e16a9cb3ebe1f2eadb942fa5628ba1c13b099a3136"],"state_sha256":"a8a921876ad6357fc3321fcb9cfe8285c1613f6728e167f2a077b450b63624f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WKLtqpmZB16UV3wXDlIK68JqoSR5aI8gXgcc/qVVWpkezPXENNPR0xb0pslmsrHebSq+i5bd9KfnzdqfrrfrBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T12:33:05.231519Z","bundle_sha256":"a921dd6a425e5e91f110b488a962cc48c566d038b4bd7e12e27ed0eee8d57437"}}