Pith Number

pith:UURJ2BA7

pith:2017:UURJ2BA7MRID4Z374QDTBMQ6R7

not attested not anchored not stored refs pending

On the number of principal components in high dimensions

Jeongyoun Ahn, Myung Hee Lee, Sungkyu Jung

arxiv:1708.04981 v1 · 2017-08-16 · 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{UURJ2BA7MRID4Z374QDTBMQ6R7}

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	2026-05-18T00:12:11.239665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5229d041f64503e677fe40730b21e8fee50730e8b22eeaf1347166b075c232d

Aliases

arxiv: 1708.04981 · arxiv_version: 1708.04981v1 · doi: 10.48550/arxiv.1708.04981 · pith_short_12: UURJ2BA7MRID · pith_short_16: UURJ2BA7MRID4Z37 · pith_short_8: UURJ2BA7

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/UURJ2BA7MRID4Z374QDTBMQ6R7 \
  | 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: a5229d041f64503e677fe40730b21e8fee50730e8b22eeaf1347166b075c232d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0176896e6aec164e0946aa78626af5a27e0fc3b11cf2a8dc5ac8c7379e8122cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2017-08-16T17:13:13Z",
    "title_canon_sha256": "2b18c30c90ea94df472847abef09607940494775f23dba7704426d182063b8f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04981",
    "kind": "arxiv",
    "version": 1
  }
}