Pith Number

pith:72SX5ZAD

pith:2018:72SX5ZADDLBEA2ZUMVCYG2QMNO

not attested not anchored not stored refs pending

Determining the dimension of factor structures in non-stationary large datasets

Lorenzo Trapani, Matteo Barigozzi

arxiv:1806.03647 v1 · 2018-06-10 · stat.ME · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{72SX5ZADDLBEA2ZUMVCYG2QMNO}

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	2026-05-18T00:13:42.623607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fea57ee4031ac2406b346545836a0c6bbe9286eac0563b689e7b76df8de1a5e8

Aliases

arxiv: 1806.03647 · arxiv_version: 1806.03647v1 · doi: 10.48550/arxiv.1806.03647 · pith_short_12: 72SX5ZADDLBE · pith_short_16: 72SX5ZADDLBEA2ZU · pith_short_8: 72SX5ZAD

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/72SX5ZADDLBEA2ZUMVCYG2QMNO \
  | 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: fea57ee4031ac2406b346545836a0c6bbe9286eac0563b689e7b76df8de1a5e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3425257cfb981a4e95fa7c017fdc4a0971cdeb22c63e1a6efd308ffb0bd5f891",
    "cross_cats_sorted": [
      "econ.EM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-06-10T12:23:15Z",
    "title_canon_sha256": "2e2665d9a4f971c2c1e454b014675870c810d29df4526ff32437ba013a5cc400"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03647",
    "kind": "arxiv",
    "version": 1
  }
}