{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:EP6HRBBJVIQDAQ4YHFJT35RRXS","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":"67fbc954951e1ebf226bb50435eb2f9080f95603039e734db83728385f5dd87d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2016-02-03T14:54:05Z","title_canon_sha256":"ddf35dfa81abdefbd11bb9257c7361f53d2b010410efd09dedb4a9e1c5172910"},"schema_version":"1.0","source":{"id":"1602.01323","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.01323","created_at":"2026-05-18T01:21:20Z"},{"alias_kind":"arxiv_version","alias_value":"1602.01323v1","created_at":"2026-05-18T01:21:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.01323","created_at":"2026-05-18T01:21:20Z"},{"alias_kind":"pith_short_12","alias_value":"EP6HRBBJVIQD","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EP6HRBBJVIQDAQ4Y","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EP6HRBBJ","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:5e66009c4cbe28ec8cd30d35663b39e229438af0f02bd474eb0be264dd84df6a","target":"graph","created_at":"2026-05-18T01:21:20Z","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 text-critical practice of grouping witnesses into families or texttypes often faces two obstacles: Contamination in the manuscript tradition, and co-dependence in identifying characteristic readings and manuscripts. We introduce non-negative matrix factorization (NMF) as a simple, unsupervised, and efficient way to cluster large numbers of manuscripts and readings simultaneously while summarizing contamination using an easy-to-interpret mixture model. We apply this method to an extensive collation of the New Testament epistle of Jude and show that the resulting clusters correspond to human","authors_text":"Joey McCollum, Stephen Brown","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2016-02-03T14:54:05Z","title":"Biclustering Readings and Manuscripts via Non-negative Matrix Factorization, with Application to the Text of Jude"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.01323","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":"sha256:83d315c49744459d18faf1db6060f1b5dc45a031a9eecefb5517088094215ee5","target":"record","created_at":"2026-05-18T01:21:20Z","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":"67fbc954951e1ebf226bb50435eb2f9080f95603039e734db83728385f5dd87d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2016-02-03T14:54:05Z","title_canon_sha256":"ddf35dfa81abdefbd11bb9257c7361f53d2b010410efd09dedb4a9e1c5172910"},"schema_version":"1.0","source":{"id":"1602.01323","kind":"arxiv","version":1}},"canonical_sha256":"23fc788429aa2030439839533df631bc856c4f6ce2c2b1099dd09d37e30c0f25","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23fc788429aa2030439839533df631bc856c4f6ce2c2b1099dd09d37e30c0f25","first_computed_at":"2026-05-18T01:21:20.488133Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:20.488133Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8tnCHC3HWxxAuZDyq1XV13ivrUjXHbrbo3WsNKHVP/5IhHrj6p3aAp1GS8kh2E+eZenrRLUSqV/ZQnKTxf65BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:20.488646Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.01323","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:83d315c49744459d18faf1db6060f1b5dc45a031a9eecefb5517088094215ee5","sha256:5e66009c4cbe28ec8cd30d35663b39e229438af0f02bd474eb0be264dd84df6a"],"state_sha256":"2ec13aa9ebc8640544fc8a506d36fb7253dcfef5b3a9c17ca8ac862442323875"}