Pith Number

pith:2IXCGSVI

pith:2015:2IXCGSVIGPI7Z46LGMQE6XJGZY

not attested not anchored not stored refs pending

Flexible results for quadratic forms with applications to variance components estimation

Lee H. Dicker, Murat A. Erdogdu

arxiv:1509.04388 v1 · 2015-09-15 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2IXCGSVIGPI7Z46LGMQE6XJGZY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:33:07.306014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d22e234aa833d1fcf3cb33204f5d26ce11ff25c7ffd9ce3b0ce1ac1a6733faf3

Aliases

arxiv: 1509.04388 · arxiv_version: 1509.04388v1 · doi: 10.48550/arxiv.1509.04388 · pith_short_12: 2IXCGSVIGPI7 · pith_short_16: 2IXCGSVIGPI7Z46L · pith_short_8: 2IXCGSVI

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/2IXCGSVIGPI7Z46LGMQE6XJGZY \
  | 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: d22e234aa833d1fcf3cb33204f5d26ce11ff25c7ffd9ce3b0ce1ac1a6733faf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0f1f2f2057f41cbba80dc89560f50002c9c6af155f4e2e41fac76d0de6e9c75",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2015-09-15T03:46:12Z",
    "title_canon_sha256": "7fc84ae8203aab68583e6a52abf9814f17d0eea85094279458546638bb3da3a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04388",
    "kind": "arxiv",
    "version": 1
  }
}