Pith Number

pith:QIDRCWEW

pith:2014:QIDRCWEWLOZ57UW4QGU5FGFE5R

not attested not anchored not stored refs pending

Estimation for ultra-high dimensional factor model: a pivotal variable detection based approach

Hongyu Zhao, Junlong Zhao, Lixing Zhu

arxiv:1409.5732 v1 · 2014-09-19 · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QIDRCWEWLOZ57UW4QGU5FGFE5R}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:42:26.467112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82071158965bb3dfd2dc81a9d298a4ec7532ef41015db1fc313fb67dd706c331

Aliases

arxiv: 1409.5732 · arxiv_version: 1409.5732v1 · doi: 10.48550/arxiv.1409.5732 · pith_short_12: QIDRCWEWLOZ5 · pith_short_16: QIDRCWEWLOZ57UW4 · pith_short_8: QIDRCWEW

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QIDRCWEWLOZ57UW4QGU5FGFE5R \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 82071158965bb3dfd2dc81a9d298a4ec7532ef41015db1fc313fb67dd706c331

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e10293a9c9ddb6c698c480d67dcc990314bef1ade8380cde9eae750afce1af1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2014-09-19T17:20:17Z",
    "title_canon_sha256": "76d6088ca520656f9467aa8f352b245f8055f91219cdd7f2a8eb4c1c90a28424"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.5732",
    "kind": "arxiv",
    "version": 1
  }
}