{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IOHWKXSJQ4C3HZD4WTWOB5MNEM","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":"e75fc7a85c2ef4160938ec4442bd19a1f60abbdbad0c90ce31a007b938216dab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-09-12T19:17:01Z","title_canon_sha256":"b862f47e6faa53e272759c928275a01972ae70ca248596a677658b4917732308"},"schema_version":"1.0","source":{"id":"1509.03767","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.03767","created_at":"2026-05-18T01:33:14Z"},{"alias_kind":"arxiv_version","alias_value":"1509.03767v1","created_at":"2026-05-18T01:33:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.03767","created_at":"2026-05-18T01:33:14Z"},{"alias_kind":"pith_short_12","alias_value":"IOHWKXSJQ4C3","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IOHWKXSJQ4C3HZD4","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IOHWKXSJ","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:8a3f9db2a6b13b75269402f45ea256c60b8ece9575e938f24a85501f1448e1f6","target":"graph","created_at":"2026-05-18T01:33:14Z","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":"We propose a new algorithm for envelope estimation, along with a new root n consistent method for computing starting values. The new algorithm, which does not require optimization over a Grassmannian, is shown by simulation to be much faster and typically more accurate that the best existing algorithm proposed by Cook and Zhang (2015c).","authors_text":"Dennis Cook, Liliana Forzani, Zhihua Su","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-09-12T19:17:01Z","title":"Algorithms for Envelope Estimation II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.03767","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:cc8188a524d35f6078e3c1771da1027a708872fb1786c825b7b1a8c8fcc7734f","target":"record","created_at":"2026-05-18T01:33:14Z","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":"e75fc7a85c2ef4160938ec4442bd19a1f60abbdbad0c90ce31a007b938216dab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-09-12T19:17:01Z","title_canon_sha256":"b862f47e6faa53e272759c928275a01972ae70ca248596a677658b4917732308"},"schema_version":"1.0","source":{"id":"1509.03767","kind":"arxiv","version":1}},"canonical_sha256":"438f655e498705b3e47cb4ece0f58d2317660ce417271718a36f96788853e669","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"438f655e498705b3e47cb4ece0f58d2317660ce417271718a36f96788853e669","first_computed_at":"2026-05-18T01:33:14.593968Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:14.593968Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b1xbzUcaCs+1w/2brlTBlUtu1+c3K2PJhbdziY9khMwgeZpU8itB1TiZPxgqBwCHbiuVJve3m7Zqj9REK8hPBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:14.594616Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.03767","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc8188a524d35f6078e3c1771da1027a708872fb1786c825b7b1a8c8fcc7734f","sha256:8a3f9db2a6b13b75269402f45ea256c60b8ece9575e938f24a85501f1448e1f6"],"state_sha256":"b3bda95fd8a2aef1b9eac54b27ed56b019b21680e450cdbbe5f85152ed0cd660"}