Pith Number

pith:S4DV4PKQ

pith:2018:S4DV4PKQEMWCGYVN3PP76ES7TN

not attested not anchored not stored refs pending

Quadratic Discriminant Analysis under Moderate Dimension

Guang Cheng, Qing Yang

arxiv:1808.10065 v1 · 2018-08-29 · 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{S4DV4PKQEMWCGYVN3PP76ES7TN}

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	2026-05-18T00:06:49.933331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97075e3d50232c2362addbdfff125f9b530151ffed0fb5b41638ff427fc798d1

Aliases

arxiv: 1808.10065 · arxiv_version: 1808.10065v1 · doi: 10.48550/arxiv.1808.10065 · pith_short_12: S4DV4PKQEMWC · pith_short_16: S4DV4PKQEMWCGYVN · pith_short_8: S4DV4PKQ

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/S4DV4PKQEMWCGYVN3PP76ES7TN \
  | 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: 97075e3d50232c2362addbdfff125f9b530151ffed0fb5b41638ff427fc798d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bb1eb411d1df912e0f2668687a975fa5b700c06e39e2b8eb890cb70fa83ac1f",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2018-08-29T23:11:00Z",
    "title_canon_sha256": "708b6697c65da321294d77292727917e55432fa42f72253bfae72902855de963"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10065",
    "kind": "arxiv",
    "version": 1
  }
}