{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:KPXEBIXACGWO23T4GAXIAIM6NP","short_pith_number":"pith:KPXEBIXA","canonical_record":{"source":{"id":"1402.5740","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-02-24T07:50:08Z","cross_cats_sorted":["math.CV"],"title_canon_sha256":"ccf0bd6f9e7ada58bdb4e08497579f40c9adc7ef15910adfaf8c25c1e1333f6e","abstract_canon_sha256":"2e13276c41a34522eb8972d7fc84867b5ea1cb28f6a27e9543968be4a48f461f"},"schema_version":"1.0"},"canonical_sha256":"53ee40a2e011aced6e7c302e80219e6bdee7451ebd04652389f5b5cceabf832b","source":{"kind":"arxiv","id":"1402.5740","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.5740","created_at":"2026-05-18T02:58:13Z"},{"alias_kind":"arxiv_version","alias_value":"1402.5740v1","created_at":"2026-05-18T02:58:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.5740","created_at":"2026-05-18T02:58:13Z"},{"alias_kind":"pith_short_12","alias_value":"KPXEBIXACGWO","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KPXEBIXACGWO23T4","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KPXEBIXA","created_at":"2026-05-18T12:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:KPXEBIXACGWO23T4GAXIAIM6NP","target":"record","payload":{"canonical_record":{"source":{"id":"1402.5740","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-02-24T07:50:08Z","cross_cats_sorted":["math.CV"],"title_canon_sha256":"ccf0bd6f9e7ada58bdb4e08497579f40c9adc7ef15910adfaf8c25c1e1333f6e","abstract_canon_sha256":"2e13276c41a34522eb8972d7fc84867b5ea1cb28f6a27e9543968be4a48f461f"},"schema_version":"1.0"},"canonical_sha256":"53ee40a2e011aced6e7c302e80219e6bdee7451ebd04652389f5b5cceabf832b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:58:13.840187Z","signature_b64":"r64hS71wwEhNa/bFpIYfwyczTJB90yMoxDJ3r5DHR1SsLR1SgSzNxO74WWS/WlnIU2YtnMkLCfHLV2Wm/jn0BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"53ee40a2e011aced6e7c302e80219e6bdee7451ebd04652389f5b5cceabf832b","last_reissued_at":"2026-05-18T02:58:13.839546Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:58:13.839546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.5740","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":"2026-05-18T02:58:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4wiRkHxIyM+I92ONHL8IcSHwnx6ngVTonH7kz/FedaRXS/6Y6YTMryAd9I4fjlBJPy4rjWYCuwyK0R3oWP9yDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:03:01.878242Z"},"content_sha256":"371a772deeb09d11d632a635dc209d8ba736808b8bdd8682f6a7d4c3c50fb162","schema_version":"1.0","event_id":"sha256:371a772deeb09d11d632a635dc209d8ba736808b8bdd8682f6a7d4c3c50fb162"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:KPXEBIXACGWO23T4GAXIAIM6NP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Global Deformations of Quartic Double Solids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.CV"],"primary_cat":"math.AG","authors_text":"Tobias Dorsch","submitted_at":"2014-02-24T07:50:08Z","abstract_excerpt":"It is shown that a smooth global deformation of quartic double solids, i.e. double covers of $\\mathbb P^3$ branched along smooth quartics, is again a quartic double solid without assuming the projectivity of the global deformation. The analogous result for smooth intersections of two quadrics in $\\mathbb P^ 5$ is also shown, which is, however, much easier.\n  In a weak form this extends results of J. Koll\\'ar and I. Nakamura on Moishezon manifolds that are homeomorphic to certain Fano threefolds and it gives some further evidence for the question whether global deformations of Fano manifolds of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.5740","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":""},"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":"2026-05-18T02:58:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w8FjSs6fARKDu1Hmy803+NveH3TxRVXkoh3DC+Utos6RRCEv9Kf8r14cb+W7BlF3ZGtJC/OlMRavvb+AiCUlCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:03:01.878921Z"},"content_sha256":"63f6e1e12d7821e96de3843b7701255fc75ef319e9b78b27ae9b0c7e2092e9f1","schema_version":"1.0","event_id":"sha256:63f6e1e12d7821e96de3843b7701255fc75ef319e9b78b27ae9b0c7e2092e9f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KPXEBIXACGWO23T4GAXIAIM6NP/bundle.json","state_url":"https://pith.science/pith/KPXEBIXACGWO23T4GAXIAIM6NP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KPXEBIXACGWO23T4GAXIAIM6NP/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":"2026-05-26T23:03:01Z","links":{"resolver":"https://pith.science/pith/KPXEBIXACGWO23T4GAXIAIM6NP","bundle":"https://pith.science/pith/KPXEBIXACGWO23T4GAXIAIM6NP/bundle.json","state":"https://pith.science/pith/KPXEBIXACGWO23T4GAXIAIM6NP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KPXEBIXACGWO23T4GAXIAIM6NP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:KPXEBIXACGWO23T4GAXIAIM6NP","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":"2e13276c41a34522eb8972d7fc84867b5ea1cb28f6a27e9543968be4a48f461f","cross_cats_sorted":["math.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-02-24T07:50:08Z","title_canon_sha256":"ccf0bd6f9e7ada58bdb4e08497579f40c9adc7ef15910adfaf8c25c1e1333f6e"},"schema_version":"1.0","source":{"id":"1402.5740","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.5740","created_at":"2026-05-18T02:58:13Z"},{"alias_kind":"arxiv_version","alias_value":"1402.5740v1","created_at":"2026-05-18T02:58:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.5740","created_at":"2026-05-18T02:58:13Z"},{"alias_kind":"pith_short_12","alias_value":"KPXEBIXACGWO","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KPXEBIXACGWO23T4","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KPXEBIXA","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:63f6e1e12d7821e96de3843b7701255fc75ef319e9b78b27ae9b0c7e2092e9f1","target":"graph","created_at":"2026-05-18T02:58:13Z","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":"It is shown that a smooth global deformation of quartic double solids, i.e. double covers of $\\mathbb P^3$ branched along smooth quartics, is again a quartic double solid without assuming the projectivity of the global deformation. The analogous result for smooth intersections of two quadrics in $\\mathbb P^ 5$ is also shown, which is, however, much easier.\n  In a weak form this extends results of J. Koll\\'ar and I. Nakamura on Moishezon manifolds that are homeomorphic to certain Fano threefolds and it gives some further evidence for the question whether global deformations of Fano manifolds of","authors_text":"Tobias Dorsch","cross_cats":["math.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-02-24T07:50:08Z","title":"On Global Deformations of Quartic Double Solids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.5740","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":"sha256:371a772deeb09d11d632a635dc209d8ba736808b8bdd8682f6a7d4c3c50fb162","target":"record","created_at":"2026-05-18T02:58:13Z","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":"2e13276c41a34522eb8972d7fc84867b5ea1cb28f6a27e9543968be4a48f461f","cross_cats_sorted":["math.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2014-02-24T07:50:08Z","title_canon_sha256":"ccf0bd6f9e7ada58bdb4e08497579f40c9adc7ef15910adfaf8c25c1e1333f6e"},"schema_version":"1.0","source":{"id":"1402.5740","kind":"arxiv","version":1}},"canonical_sha256":"53ee40a2e011aced6e7c302e80219e6bdee7451ebd04652389f5b5cceabf832b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"53ee40a2e011aced6e7c302e80219e6bdee7451ebd04652389f5b5cceabf832b","first_computed_at":"2026-05-18T02:58:13.839546Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:58:13.839546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r64hS71wwEhNa/bFpIYfwyczTJB90yMoxDJ3r5DHR1SsLR1SgSzNxO74WWS/WlnIU2YtnMkLCfHLV2Wm/jn0BA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:58:13.840187Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.5740","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:371a772deeb09d11d632a635dc209d8ba736808b8bdd8682f6a7d4c3c50fb162","sha256:63f6e1e12d7821e96de3843b7701255fc75ef319e9b78b27ae9b0c7e2092e9f1"],"state_sha256":"6c50af1677ade9a779038722ed2c0407f41066162d4908fc228348adeda06dd1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hdErEl03HrKVJT+a7wRdq1zbxohKNuF59tyNxZOOnfFQ96lnIXqXMfFgXMA832hmw7l/9sxkr5fiju7qmuNGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:03:01.882303Z","bundle_sha256":"b95033bb0f4fe2262aa8187aa73a7827457f653f269009f758af0c303cf34441"}}