{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:3XQXTQL47EKZPLDXQMZG7ATJEL","short_pith_number":"pith:3XQXTQL4","canonical_record":{"source":{"id":"2112.14353","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2021-12-29T01:17:44Z","cross_cats_sorted":["stat.TH"],"title_canon_sha256":"8f832482520c9e5230d775dff510a6ed2ccddc081e5b5dc65b3f6a1bcda20b17","abstract_canon_sha256":"12f7882c655cda19360e1ac234d84faceacdfb9bb46e0b4b6194463ad2c8bdeb"},"schema_version":"1.0"},"canonical_sha256":"dde179c17cf91597ac7783326f826922ff3d49192352d4ec6190a6a686f07eb3","source":{"kind":"arxiv","id":"2112.14353","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.14353","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"arxiv_version","alias_value":"2112.14353v1","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.14353","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"pith_short_12","alias_value":"3XQXTQL47EKZ","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"pith_short_16","alias_value":"3XQXTQL47EKZPLDX","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"pith_short_8","alias_value":"3XQXTQL4","created_at":"2026-07-05T03:44:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:3XQXTQL47EKZPLDXQMZG7ATJEL","target":"record","payload":{"canonical_record":{"source":{"id":"2112.14353","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2021-12-29T01:17:44Z","cross_cats_sorted":["stat.TH"],"title_canon_sha256":"8f832482520c9e5230d775dff510a6ed2ccddc081e5b5dc65b3f6a1bcda20b17","abstract_canon_sha256":"12f7882c655cda19360e1ac234d84faceacdfb9bb46e0b4b6194463ad2c8bdeb"},"schema_version":"1.0"},"canonical_sha256":"dde179c17cf91597ac7783326f826922ff3d49192352d4ec6190a6a686f07eb3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:44:21.444305Z","signature_b64":"UXmMQhrBo9IxQ/M1946jsUXHYtoCFfGSw04mJx88ktVD38jUeZ/7JkYpNmgDUeCXqxE413rkIntmuSyo0JNCDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dde179c17cf91597ac7783326f826922ff3d49192352d4ec6190a6a686f07eb3","last_reissued_at":"2026-07-05T03:44:21.443949Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:44:21.443949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.14353","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:44:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZPSqPIizIFzEXxD1O/gSrQ7YgfynHmwh2tqm3g7cOb5l/nS0RLBb7mHgwW31+sAwNFF2Mj8/aaPqkOSIuX2MAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T21:55:21.239839Z"},"content_sha256":"a39b40f53c638bc76fa7bed1ad722472b3a62684df863586f32006a4b887bd73","schema_version":"1.0","event_id":"sha256:a39b40f53c638bc76fa7bed1ad722472b3a62684df863586f32006a4b887bd73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:3XQXTQL47EKZPLDXQMZG7ATJEL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A comment and erratum on \"Excess Optimism: How Biased is the Apparent Error of an Estimator Tuned by SURE?\"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.TH"],"primary_cat":"math.ST","authors_text":"Alnur Ali, John Duchi, Maxime Cauchois","submitted_at":"2021-12-29T01:17:44Z","abstract_excerpt":"We identify and correct an error in the paper \"Excess Optimism: How Biased is the Apparent Error of an Estimator Tuned by SURE?\" This correction allows new guarantees on the excess degrees of freedom--the bias in the error estimate of Stein's unbiased risk estimate (SURE) for an estimator tuned by directly minimizing the SURE criterion--for arbitrary SURE-tuned linear estimators. Oracle inequalities follow as a consequence of these results for such estimators."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.14353","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2112.14353/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:44:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W/QWplV0psXlUN7LCSKf6L5arsgpcdlXaNTqgTQrFrB0IyGgxPLNRSbrlglckr06xm2dsqTeUV7LIT5SmGdkDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T21:55:21.240225Z"},"content_sha256":"fa0ff1750f0e1064a8391b524d2eb849cd0261a264a7d692d9c0e21a79279205","schema_version":"1.0","event_id":"sha256:fa0ff1750f0e1064a8391b524d2eb849cd0261a264a7d692d9c0e21a79279205"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3XQXTQL47EKZPLDXQMZG7ATJEL/bundle.json","state_url":"https://pith.science/pith/3XQXTQL47EKZPLDXQMZG7ATJEL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3XQXTQL47EKZPLDXQMZG7ATJEL/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-21T21:55:21Z","links":{"resolver":"https://pith.science/pith/3XQXTQL47EKZPLDXQMZG7ATJEL","bundle":"https://pith.science/pith/3XQXTQL47EKZPLDXQMZG7ATJEL/bundle.json","state":"https://pith.science/pith/3XQXTQL47EKZPLDXQMZG7ATJEL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3XQXTQL47EKZPLDXQMZG7ATJEL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:3XQXTQL47EKZPLDXQMZG7ATJEL","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":"12f7882c655cda19360e1ac234d84faceacdfb9bb46e0b4b6194463ad2c8bdeb","cross_cats_sorted":["stat.TH"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2021-12-29T01:17:44Z","title_canon_sha256":"8f832482520c9e5230d775dff510a6ed2ccddc081e5b5dc65b3f6a1bcda20b17"},"schema_version":"1.0","source":{"id":"2112.14353","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.14353","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"arxiv_version","alias_value":"2112.14353v1","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.14353","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"pith_short_12","alias_value":"3XQXTQL47EKZ","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"pith_short_16","alias_value":"3XQXTQL47EKZPLDX","created_at":"2026-07-05T03:44:21Z"},{"alias_kind":"pith_short_8","alias_value":"3XQXTQL4","created_at":"2026-07-05T03:44:21Z"}],"graph_snapshots":[{"event_id":"sha256:fa0ff1750f0e1064a8391b524d2eb849cd0261a264a7d692d9c0e21a79279205","target":"graph","created_at":"2026-07-05T03:44:21Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2112.14353/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We identify and correct an error in the paper \"Excess Optimism: How Biased is the Apparent Error of an Estimator Tuned by SURE?\" This correction allows new guarantees on the excess degrees of freedom--the bias in the error estimate of Stein's unbiased risk estimate (SURE) for an estimator tuned by directly minimizing the SURE criterion--for arbitrary SURE-tuned linear estimators. Oracle inequalities follow as a consequence of these results for such estimators.","authors_text":"Alnur Ali, John Duchi, Maxime Cauchois","cross_cats":["stat.TH"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2021-12-29T01:17:44Z","title":"A comment and erratum on \"Excess Optimism: How Biased is the Apparent Error of an Estimator Tuned by SURE?\""},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.14353","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:a39b40f53c638bc76fa7bed1ad722472b3a62684df863586f32006a4b887bd73","target":"record","created_at":"2026-07-05T03:44:21Z","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":"12f7882c655cda19360e1ac234d84faceacdfb9bb46e0b4b6194463ad2c8bdeb","cross_cats_sorted":["stat.TH"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2021-12-29T01:17:44Z","title_canon_sha256":"8f832482520c9e5230d775dff510a6ed2ccddc081e5b5dc65b3f6a1bcda20b17"},"schema_version":"1.0","source":{"id":"2112.14353","kind":"arxiv","version":1}},"canonical_sha256":"dde179c17cf91597ac7783326f826922ff3d49192352d4ec6190a6a686f07eb3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dde179c17cf91597ac7783326f826922ff3d49192352d4ec6190a6a686f07eb3","first_computed_at":"2026-07-05T03:44:21.443949Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:44:21.443949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UXmMQhrBo9IxQ/M1946jsUXHYtoCFfGSw04mJx88ktVD38jUeZ/7JkYpNmgDUeCXqxE413rkIntmuSyo0JNCDw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:44:21.444305Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.14353","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a39b40f53c638bc76fa7bed1ad722472b3a62684df863586f32006a4b887bd73","sha256:fa0ff1750f0e1064a8391b524d2eb849cd0261a264a7d692d9c0e21a79279205"],"state_sha256":"b73969c3b3fb1857d2d7dd02cc79d40d41324c69dc71ab46c4235eb4c236cdb3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GLqGiKcaXelJl39ewiOr9+NnHQZxHAMt8hXKH/E8XxbmisZNFog933YWXRPt3qZvQs/iTgBg/xRl9NJCOlRZAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T21:55:21.242466Z","bundle_sha256":"e88be1a62cd68e7f86fba011210f50b6ce6488bb4a0797e159e6afbd8ae8d207"}}