{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:U2MXOXDALKTSQJSI7WDSWZMGOZ","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":"9a84ba9b726430907f4ecf631e9acf8b351659d2921bdfdf52da7be132228e91","cross_cats_sorted":["math.AG","math.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.HO","submitted_at":"2017-04-24T20:10:38Z","title_canon_sha256":"b4a44aadb5563c9d3df7855ee371010a2c6f76db2215c2df21f3bd920428de43"},"schema_version":"1.0","source":{"id":"1704.07446","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.07446","created_at":"2026-05-18T00:45:38Z"},{"alias_kind":"arxiv_version","alias_value":"1704.07446v1","created_at":"2026-05-18T00:45:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.07446","created_at":"2026-05-18T00:45:38Z"},{"alias_kind":"pith_short_12","alias_value":"U2MXOXDALKTS","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"U2MXOXDALKTSQJSI","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"U2MXOXDA","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:a73d5b759224c5ac7878c88549d584acbf72ec6895c6ef9bc89b38c3633c406b","target":"graph","created_at":"2026-05-18T00:45:38Z","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":"In this article we describe the life and work of Wolf Barth who died on 30th December 2016. Wolf Barth's contributions to algebraic variety span a wide range of subjects. His achievements range from what is now called the Barth-Lefschetz theorems to his fundamental contributions to the theory of algebraic surfaces and moduli of vector bundles, and include his later work on algebraic surfaces with many singularities, culminating in the famous Barth sextic.","authors_text":"Alessandra Sarti, Klaus Hulek, Slawomir Rams, Thomas Bauer, Tomasz Szemberg","cross_cats":["math.AG","math.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.HO","submitted_at":"2017-04-24T20:10:38Z","title":"Wolf Barth (1942--2016)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.07446","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":"sha256:942d0f08e4ea72dbda469da6b580902eef8999ec12a0aadc033f6756e203b744","target":"record","created_at":"2026-05-18T00:45:38Z","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":"9a84ba9b726430907f4ecf631e9acf8b351659d2921bdfdf52da7be132228e91","cross_cats_sorted":["math.AG","math.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.HO","submitted_at":"2017-04-24T20:10:38Z","title_canon_sha256":"b4a44aadb5563c9d3df7855ee371010a2c6f76db2215c2df21f3bd920428de43"},"schema_version":"1.0","source":{"id":"1704.07446","kind":"arxiv","version":1}},"canonical_sha256":"a699775c605aa7282648fd872b6586766a63484993edcdfd5481b53713ff3442","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a699775c605aa7282648fd872b6586766a63484993edcdfd5481b53713ff3442","first_computed_at":"2026-05-18T00:45:38.079526Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:38.079526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GlGTFPVgHUAo0lmR3/z4/uAVVetMCVpeZv/yzRnngkhgJkceHi08BwsFiwtieJ3nj6D1Sgn8OJ6h1YU7G1ZBAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:38.080241Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.07446","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:942d0f08e4ea72dbda469da6b580902eef8999ec12a0aadc033f6756e203b744","sha256:a73d5b759224c5ac7878c88549d584acbf72ec6895c6ef9bc89b38c3633c406b"],"state_sha256":"3dc8a752812cadba14bfbf25771f5ee192ce879ba84b77bb91d6829eefcdd94b"}