{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:O2QMSZ4ZQADPZE7RSLE5QFYU2Q","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":"25bbc4f3c99ba218d9667547b0401e1b797a016a59b7047eb8c778ec0c015709","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2012-01-25T21:14:46Z","title_canon_sha256":"ac4177064fa8ccc62c7e59c1635fc8d34ccd6f5bc3755bd26f832fbe293234cd"},"schema_version":"1.0","source":{"id":"1201.5396","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.5396","created_at":"2026-05-18T03:32:08Z"},{"alias_kind":"arxiv_version","alias_value":"1201.5396v2","created_at":"2026-05-18T03:32:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.5396","created_at":"2026-05-18T03:32:08Z"},{"alias_kind":"pith_short_12","alias_value":"O2QMSZ4ZQADP","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"O2QMSZ4ZQADPZE7R","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"O2QMSZ4Z","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:f53b96d545a549fa1720f4a49793d434ceafc2de49ffbf61d885b32d11baa71f","target":"graph","created_at":"2026-05-18T03:32:08Z","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":"The Chern class of the sheaf of logarithmic derivations along a simple normal crossing divisor equals the Chern-Schwartz-MacPherson class of the complement of the divisor. We extend this equality to more general divisors, which are locally analytically isomorphic to free hyperplane arrangements.","authors_text":"Paolo Aluffi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2012-01-25T21:14:46Z","title":"Chern classes of free hypersurface arrangements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.5396","kind":"arxiv","version":2},"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:fdf717157fbe877c2b3e800ce300306bf3b806618ab8fdf9934a2d5385afe26a","target":"record","created_at":"2026-05-18T03:32:08Z","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":"25bbc4f3c99ba218d9667547b0401e1b797a016a59b7047eb8c778ec0c015709","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AG","submitted_at":"2012-01-25T21:14:46Z","title_canon_sha256":"ac4177064fa8ccc62c7e59c1635fc8d34ccd6f5bc3755bd26f832fbe293234cd"},"schema_version":"1.0","source":{"id":"1201.5396","kind":"arxiv","version":2}},"canonical_sha256":"76a0c967998006fc93f192c9d81714d41e6bdc304f62bc78aa8cc4652ee7bdbe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76a0c967998006fc93f192c9d81714d41e6bdc304f62bc78aa8cc4652ee7bdbe","first_computed_at":"2026-05-18T03:32:08.034539Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:32:08.034539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CkEH2kescP13ZGXwTWfmvYUssMnbAOMmqLQCTZvfv7pDmOO5+kaD6fVn+cZOLb45DyBIQabbCP9eGlzNlpOQAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:32:08.035059Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.5396","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fdf717157fbe877c2b3e800ce300306bf3b806618ab8fdf9934a2d5385afe26a","sha256:f53b96d545a549fa1720f4a49793d434ceafc2de49ffbf61d885b32d11baa71f"],"state_sha256":"0a2300f09b9d304919f73046b2eb8309bfe5584427f9f54c958c2130353ed171"}