Pith Number

pith:XZQUE7MV

pith:2019:XZQUE7MVPML5WC2PT3BRJSWJSP

not attested not anchored not stored refs pending

Learning Latent Factors from Diversified Projections and its Applications to Over-Estimated and Weak Factors

Jianqing Fan, Yuan Liao

arxiv:1908.01252 v3 · 2019-08-04 · math.ST · stat.ME · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZQUE7MVPML5WC2PT3BRJSWJSP}

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	2026-07-05T01:07:50.163801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be61427d957b17db0b4f9ec314cac993f2bea53df2bab2868346a29132092140

Aliases

arxiv: 1908.01252 · arxiv_version: 1908.01252v3 · doi: 10.48550/arxiv.1908.01252 · pith_short_12: XZQUE7MVPML5 · pith_short_16: XZQUE7MVPML5WC2P · pith_short_8: XZQUE7MV

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/XZQUE7MVPML5WC2PT3BRJSWJSP \
  | 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: be61427d957b17db0b4f9ec314cac993f2bea53df2bab2868346a29132092140

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a73007e5825767afa9c283db3298e4005e20f676a40c2d154bc0f8a69ede09ff",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2019-08-04T01:09:01Z",
    "title_canon_sha256": "a5660632be8e3bd859f9be2c1290b1b9ea2076b67b572f564a1a29f78bb166b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.01252",
    "kind": "arxiv",
    "version": 3
  }
}