{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:WJQ6H6WNEVYIAD2ORGCBLTIEU6","short_pith_number":"pith:WJQ6H6WN","schema_version":"1.0","canonical_sha256":"b261e3facd2570800f4e898415cd04a7b0a1a07aa05bd4dec8009cbd75b98c45","source":{"kind":"arxiv","id":"1211.1100","version":2},"attestation_state":"computed","paper":{"title":"Globally generated vector bundles of rank 2 on a smooth quadric threefold","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AG","authors_text":"Edoardo Ballico, Francesco Malaspina, Sukmoon Huh","submitted_at":"2012-11-06T04:14:25Z","abstract_excerpt":"We investigate the existence of globally generated vector bundles of rank 2 with $c_1\\leq 3$ on a smooth quadric threefold and determine their Chern classes. As an automatic consequence, every rank 2 globally generated vector bundle on $Q$ with $c_1=3$ is an odd instanton up to twist."},"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":"1211.1100","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2012-11-06T04:14:25Z","cross_cats_sorted":[],"title_canon_sha256":"8d6c7c71073bb6baa4d657a596e48f52cf79680fb6d4c1aac40a0449ceba563b","abstract_canon_sha256":"a022236107390aa209c6fe451220a27af6770a8bd377731473f3742f9247905e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:21:54.781957Z","signature_b64":"sbkYSZLhYwBsf41baFjI4siKsFD0PqVErHvu/rb0Qb41WrbD/TzulYJx+aWyTxMcxu95RTZN38+Cu3IacALkBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b261e3facd2570800f4e898415cd04a7b0a1a07aa05bd4dec8009cbd75b98c45","last_reissued_at":"2026-05-18T03:21:54.781396Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:21:54.781396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Globally generated vector bundles of rank 2 on a smooth quadric threefold","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AG","authors_text":"Edoardo Ballico, Francesco Malaspina, Sukmoon Huh","submitted_at":"2012-11-06T04:14:25Z","abstract_excerpt":"We investigate the existence of globally generated vector bundles of rank 2 with $c_1\\leq 3$ on a smooth quadric threefold and determine their Chern classes. As an automatic consequence, every rank 2 globally generated vector bundle on $Q$ with $c_1=3$ is an odd instanton up to twist."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.1100","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":""},"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":"1211.1100","created_at":"2026-05-18T03:21:54.781484+00:00"},{"alias_kind":"arxiv_version","alias_value":"1211.1100v2","created_at":"2026-05-18T03:21:54.781484+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.1100","created_at":"2026-05-18T03:21:54.781484+00:00"},{"alias_kind":"pith_short_12","alias_value":"WJQ6H6WNEVYI","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_16","alias_value":"WJQ6H6WNEVYIAD2O","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_8","alias_value":"WJQ6H6WN","created_at":"2026-05-18T12:27:25.539911+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/WJQ6H6WNEVYIAD2ORGCBLTIEU6","json":"https://pith.science/pith/WJQ6H6WNEVYIAD2ORGCBLTIEU6.json","graph_json":"https://pith.science/api/pith-number/WJQ6H6WNEVYIAD2ORGCBLTIEU6/graph.json","events_json":"https://pith.science/api/pith-number/WJQ6H6WNEVYIAD2ORGCBLTIEU6/events.json","paper":"https://pith.science/paper/WJQ6H6WN"},"agent_actions":{"view_html":"https://pith.science/pith/WJQ6H6WNEVYIAD2ORGCBLTIEU6","download_json":"https://pith.science/pith/WJQ6H6WNEVYIAD2ORGCBLTIEU6.json","view_paper":"https://pith.science/paper/WJQ6H6WN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1211.1100&json=true","fetch_graph":"https://pith.science/api/pith-number/WJQ6H6WNEVYIAD2ORGCBLTIEU6/graph.json","fetch_events":"https://pith.science/api/pith-number/WJQ6H6WNEVYIAD2ORGCBLTIEU6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WJQ6H6WNEVYIAD2ORGCBLTIEU6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WJQ6H6WNEVYIAD2ORGCBLTIEU6/action/storage_attestation","attest_author":"https://pith.science/pith/WJQ6H6WNEVYIAD2ORGCBLTIEU6/action/author_attestation","sign_citation":"https://pith.science/pith/WJQ6H6WNEVYIAD2ORGCBLTIEU6/action/citation_signature","submit_replication":"https://pith.science/pith/WJQ6H6WNEVYIAD2ORGCBLTIEU6/action/replication_record"}},"created_at":"2026-05-18T03:21:54.781484+00:00","updated_at":"2026-05-18T03:21:54.781484+00:00"}