{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:XIVVND7Z3JUR7B2XINM6UCBUZL","short_pith_number":"pith:XIVVND7Z","schema_version":"1.0","canonical_sha256":"ba2b568ff9da691f87574359ea0834cae687c50fcc1d824396eb8f822efb1e88","source":{"kind":"arxiv","id":"1012.1922","version":2},"attestation_state":"computed","paper":{"title":"The second Stiefel-Whitney classes of l-adic cohomology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AG","authors_text":"Takeshi Saito","submitted_at":"2010-12-09T05:10:25Z","abstract_excerpt":"For a proper smooth variety of even dimension over a field of characteristic different from 2 or l, the second Stiefel-Whitney class of the l-adic cohomology and the second Hasse-Witt class of the de Rham cohomology are both defined in the second Galois homology. We state a conjecture on their relation and give several evidences."},"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":"1012.1922","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2010-12-09T05:10:25Z","cross_cats_sorted":[],"title_canon_sha256":"6bb52e1f98fe9ce1a750c12977441cf7a8fe8bb17de11bb8bdee188e3f7314b1","abstract_canon_sha256":"de4c177fc91829e606bab9122d64b2611eb1218a5fa58909c62bc449e10bcbaa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:17.805910Z","signature_b64":"DgDKuaXdXwYbI5bxdcPS/p+vZ70diyWf1BnWTgYK2WTUY80gKC7XmGZYe8u3VNjtj/v0Pr8YpkqU/OZ4lOByDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba2b568ff9da691f87574359ea0834cae687c50fcc1d824396eb8f822efb1e88","last_reissued_at":"2026-05-18T03:16:17.805436Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:17.805436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The second Stiefel-Whitney classes of l-adic cohomology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AG","authors_text":"Takeshi Saito","submitted_at":"2010-12-09T05:10:25Z","abstract_excerpt":"For a proper smooth variety of even dimension over a field of characteristic different from 2 or l, the second Stiefel-Whitney class of the l-adic cohomology and the second Hasse-Witt class of the de Rham cohomology are both defined in the second Galois homology. We state a conjecture on their relation and give several evidences."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1922","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":"1012.1922","created_at":"2026-05-18T03:16:17.805509+00:00"},{"alias_kind":"arxiv_version","alias_value":"1012.1922v2","created_at":"2026-05-18T03:16:17.805509+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1922","created_at":"2026-05-18T03:16:17.805509+00:00"},{"alias_kind":"pith_short_12","alias_value":"XIVVND7Z3JUR","created_at":"2026-05-18T12:26:17.028572+00:00"},{"alias_kind":"pith_short_16","alias_value":"XIVVND7Z3JUR7B2X","created_at":"2026-05-18T12:26:17.028572+00:00"},{"alias_kind":"pith_short_8","alias_value":"XIVVND7Z","created_at":"2026-05-18T12:26:17.028572+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/XIVVND7Z3JUR7B2XINM6UCBUZL","json":"https://pith.science/pith/XIVVND7Z3JUR7B2XINM6UCBUZL.json","graph_json":"https://pith.science/api/pith-number/XIVVND7Z3JUR7B2XINM6UCBUZL/graph.json","events_json":"https://pith.science/api/pith-number/XIVVND7Z3JUR7B2XINM6UCBUZL/events.json","paper":"https://pith.science/paper/XIVVND7Z"},"agent_actions":{"view_html":"https://pith.science/pith/XIVVND7Z3JUR7B2XINM6UCBUZL","download_json":"https://pith.science/pith/XIVVND7Z3JUR7B2XINM6UCBUZL.json","view_paper":"https://pith.science/paper/XIVVND7Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1012.1922&json=true","fetch_graph":"https://pith.science/api/pith-number/XIVVND7Z3JUR7B2XINM6UCBUZL/graph.json","fetch_events":"https://pith.science/api/pith-number/XIVVND7Z3JUR7B2XINM6UCBUZL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XIVVND7Z3JUR7B2XINM6UCBUZL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XIVVND7Z3JUR7B2XINM6UCBUZL/action/storage_attestation","attest_author":"https://pith.science/pith/XIVVND7Z3JUR7B2XINM6UCBUZL/action/author_attestation","sign_citation":"https://pith.science/pith/XIVVND7Z3JUR7B2XINM6UCBUZL/action/citation_signature","submit_replication":"https://pith.science/pith/XIVVND7Z3JUR7B2XINM6UCBUZL/action/replication_record"}},"created_at":"2026-05-18T03:16:17.805509+00:00","updated_at":"2026-05-18T03:16:17.805509+00:00"}