Pith Number

pith:YQ27GZBW

pith:2012:YQ27GZBW6VJSHPCTJHUIGB7ZFZ

not attested not anchored not stored refs pending

Two sample tests for high-dimensional covariance matrices

Jun Li, Song Xi Chen

arxiv:1206.0917 v1 · 2012-06-05 · math.ST · 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{YQ27GZBW6VJSHPCTJHUIGB7ZFZ}

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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	2026-05-18T03:54:15.691828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c435f36436f55323bc5349e88307f92e4561430e4f912b74632c43e8de027cd9

Aliases

arxiv: 1206.0917 · arxiv_version: 1206.0917v1 · doi: 10.48550/arxiv.1206.0917 · pith_short_12: YQ27GZBW6VJS · pith_short_16: YQ27GZBW6VJSHPCT · pith_short_8: YQ27GZBW

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/YQ27GZBW6VJSHPCTJHUIGB7ZFZ \
  | 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: c435f36436f55323bc5349e88307f92e4561430e4f912b74632c43e8de027cd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06695e98bd3c3619f382ad1c7ed4a1058ad5e15f1a1a356ce02aeb6b45a60583",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-06-05T13:10:07Z",
    "title_canon_sha256": "b2063f8af9ba903ce9432201369b23485fe192a176c01f06a3c27ccd284c14b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.0917",
    "kind": "arxiv",
    "version": 1
  }
}