{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:W5C4OYMZMDGURSHRTJQBBDLWE2","short_pith_number":"pith:W5C4OYMZ","canonical_record":{"source":{"id":"1310.3899","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T02:02:31Z","cross_cats_sorted":[],"title_canon_sha256":"fff0562bda80ca0090d8a2e3e71ddb8d91c5075eb06744921e4ca3c740f2a114","abstract_canon_sha256":"0a9cce813e2106f2091f0b9dcc1bf4619c0b72bbd6b54f995ab71995f223782b"},"schema_version":"1.0"},"canonical_sha256":"b745c7619960cd48c8f19a60108d7626b9d7b38d4fc837a2d47782b39df2ac95","source":{"kind":"arxiv","id":"1310.3899","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3899","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3899v2","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3899","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"pith_short_12","alias_value":"W5C4OYMZMDGU","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"W5C4OYMZMDGURSHR","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"W5C4OYMZ","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:W5C4OYMZMDGURSHRTJQBBDLWE2","target":"record","payload":{"canonical_record":{"source":{"id":"1310.3899","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T02:02:31Z","cross_cats_sorted":[],"title_canon_sha256":"fff0562bda80ca0090d8a2e3e71ddb8d91c5075eb06744921e4ca3c740f2a114","abstract_canon_sha256":"0a9cce813e2106f2091f0b9dcc1bf4619c0b72bbd6b54f995ab71995f223782b"},"schema_version":"1.0"},"canonical_sha256":"b745c7619960cd48c8f19a60108d7626b9d7b38d4fc837a2d47782b39df2ac95","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:45:04.665955Z","signature_b64":"kn0xTIfVIfrhs6OcIdbmo1SphI7rTyhroZovI6wbv/qDxMXLoBvHBHdNeTTe5q5LbfF9CTK7/EYpeqRiCXfTAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b745c7619960cd48c8f19a60108d7626b9d7b38d4fc837a2d47782b39df2ac95","last_reissued_at":"2026-05-18T02:45:04.665490Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:45:04.665490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.3899","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:45:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nvWgLZaULWnfbX8y6hAB8c6xF50d473C4W/OH4auYmi5jCZAszT7tdZpWYXys+wQQFwV2yCfH7I26q2bJXyqAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:09:17.244649Z"},"content_sha256":"07aad605f65af27fc3eddb73a391250280b81d560b5ebc8541448c2e9d0a0f47","schema_version":"1.0","event_id":"sha256:07aad605f65af27fc3eddb73a391250280b81d560b5ebc8541448c2e9d0a0f47"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:W5C4OYMZMDGURSHRTJQBBDLWE2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Power Enhancement in High Dimensional Cross-Sectional Tests","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Jianqing Fan, Jiawei Yao, Yuan Liao","submitted_at":"2013-10-15T02:02:31Z","abstract_excerpt":"We propose a novel technique to boost the power of testing a high-dimensional vector $H:\\btheta=0$ against sparse alternatives where the null hypothesis is violated only by a couple of components. Existing tests based on quadratic forms such as the Wald statistic often suffer from low powers due to the accumulation of errors in estimating high-dimensional parameters. More powerful tests for sparse alternatives such as thresholding and extreme-value tests, on the other hand, require either stringent conditions or bootstrap to derive the null distribution and often suffer from size distortions d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3899","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T02:45:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2rb8/lznGPAtqR1JeqjvkQVAmlaHsihTW810TJHCnJ7WNFhDk1EQUHn1ImPNdHacNHUAfiy3Y2v0aNlBpuzYDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:09:17.245023Z"},"content_sha256":"1d565c6da0da449c5043358bea61d39d380bbfde31cd7ed82b192b26244d2a11","schema_version":"1.0","event_id":"sha256:1d565c6da0da449c5043358bea61d39d380bbfde31cd7ed82b192b26244d2a11"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W5C4OYMZMDGURSHRTJQBBDLWE2/bundle.json","state_url":"https://pith.science/pith/W5C4OYMZMDGURSHRTJQBBDLWE2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W5C4OYMZMDGURSHRTJQBBDLWE2/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":"2026-05-31T06:09:17Z","links":{"resolver":"https://pith.science/pith/W5C4OYMZMDGURSHRTJQBBDLWE2","bundle":"https://pith.science/pith/W5C4OYMZMDGURSHRTJQBBDLWE2/bundle.json","state":"https://pith.science/pith/W5C4OYMZMDGURSHRTJQBBDLWE2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W5C4OYMZMDGURSHRTJQBBDLWE2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:W5C4OYMZMDGURSHRTJQBBDLWE2","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":"0a9cce813e2106f2091f0b9dcc1bf4619c0b72bbd6b54f995ab71995f223782b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T02:02:31Z","title_canon_sha256":"fff0562bda80ca0090d8a2e3e71ddb8d91c5075eb06744921e4ca3c740f2a114"},"schema_version":"1.0","source":{"id":"1310.3899","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3899","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3899v2","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3899","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"pith_short_12","alias_value":"W5C4OYMZMDGU","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"W5C4OYMZMDGURSHR","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"W5C4OYMZ","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:1d565c6da0da449c5043358bea61d39d380bbfde31cd7ed82b192b26244d2a11","target":"graph","created_at":"2026-05-18T02:45:04Z","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 novel technique to boost the power of testing a high-dimensional vector $H:\\btheta=0$ against sparse alternatives where the null hypothesis is violated only by a couple of components. Existing tests based on quadratic forms such as the Wald statistic often suffer from low powers due to the accumulation of errors in estimating high-dimensional parameters. More powerful tests for sparse alternatives such as thresholding and extreme-value tests, on the other hand, require either stringent conditions or bootstrap to derive the null distribution and often suffer from size distortions d","authors_text":"Jianqing Fan, Jiawei Yao, Yuan Liao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T02:02:31Z","title":"Power Enhancement in High Dimensional Cross-Sectional Tests"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3899","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":"sha256:07aad605f65af27fc3eddb73a391250280b81d560b5ebc8541448c2e9d0a0f47","target":"record","created_at":"2026-05-18T02:45:04Z","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":"0a9cce813e2106f2091f0b9dcc1bf4619c0b72bbd6b54f995ab71995f223782b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T02:02:31Z","title_canon_sha256":"fff0562bda80ca0090d8a2e3e71ddb8d91c5075eb06744921e4ca3c740f2a114"},"schema_version":"1.0","source":{"id":"1310.3899","kind":"arxiv","version":2}},"canonical_sha256":"b745c7619960cd48c8f19a60108d7626b9d7b38d4fc837a2d47782b39df2ac95","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b745c7619960cd48c8f19a60108d7626b9d7b38d4fc837a2d47782b39df2ac95","first_computed_at":"2026-05-18T02:45:04.665490Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:45:04.665490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kn0xTIfVIfrhs6OcIdbmo1SphI7rTyhroZovI6wbv/qDxMXLoBvHBHdNeTTe5q5LbfF9CTK7/EYpeqRiCXfTAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:45:04.665955Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.3899","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07aad605f65af27fc3eddb73a391250280b81d560b5ebc8541448c2e9d0a0f47","sha256:1d565c6da0da449c5043358bea61d39d380bbfde31cd7ed82b192b26244d2a11"],"state_sha256":"38bc322642f9d7affb5051317b9ff3ef41e545baa576aa43be4800798bb7d565"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z9QehOAMXmuXnlFX2kqHAs9r1lQUerr6UvqTPTwwN5NHfYUklBwrvCEHqcQ/Rrjr1ooHpWs8Y3DmlFFqX2ogDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T06:09:17.247980Z","bundle_sha256":"2e418377a500574c18ac6146dce998de72cb9bc46f713dd7636e44f809cdae09"}}