Pith Number

pith:UMZ5VSJ5

pith:2014:UMZ5VSJ5LPRPUWHLWT7EV6TO7B

not attested not anchored not stored refs pending

Projected principal component analysis in factor models

Jianqing Fan, Weichen Wang, Yuan Liao

arxiv:1406.3836 v3 · 2014-06-15 · 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{UMZ5VSJ5LPRPUWHLWT7EV6TO7B}

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	2026-05-18T01:22:52.465940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a333dac93d5be2fa58ebb4fe4afa6ef8734297f6debb6d5ec4dd48378b373b43

Aliases

arxiv: 1406.3836 · arxiv_version: 1406.3836v3 · doi: 10.48550/arxiv.1406.3836 · pith_short_12: UMZ5VSJ5LPRP · pith_short_16: UMZ5VSJ5LPRPUWHL · pith_short_8: UMZ5VSJ5

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/UMZ5VSJ5LPRPUWHLWT7EV6TO7B \
  | 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: a333dac93d5be2fa58ebb4fe4afa6ef8734297f6debb6d5ec4dd48378b373b43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9580d7a2432fc667650e0f66900e151ee3bfe81cd68453216f860a010e249dfe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2014-06-15T18:24:49Z",
    "title_canon_sha256": "72aafc964f42ec523fac04cdf0d6c83e856eb959c534c497218dbc133b2dc105"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.3836",
    "kind": "arxiv",
    "version": 3
  }
}