Pith Number

pith:3N2BVW7E

pith:2015:3N2BVW7E7N3BKOLBCEFEFRE2RH

not attested not anchored not stored refs pending

Robust high-dimensional precision matrix estimation

Christophe Croux, Viktoria \"Ollerer

arxiv:1501.01219 v2 · 2015-01-06 · 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{3N2BVW7E7N3BKOLBCEFEFRE2RH}

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	2026-05-18T01:58:26.977687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db741adbe4fb76153961110a42c49a89dc2d84221c012373ff688dfd94639837

Aliases

arxiv: 1501.01219 · arxiv_version: 1501.01219v2 · doi: 10.48550/arxiv.1501.01219 · pith_short_12: 3N2BVW7E7N3B · pith_short_16: 3N2BVW7E7N3BKOLB · pith_short_8: 3N2BVW7E

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/3N2BVW7E7N3BKOLBCEFEFRE2RH \
  | 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: db741adbe4fb76153961110a42c49a89dc2d84221c012373ff688dfd94639837

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb52fc18479692e6b214f6619b422934b0b74d1300939b1df87b0862fa9cd04b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-01-06T16:18:16Z",
    "title_canon_sha256": "3583c1826c09615be3eb85fcb0d04c96121221b58301ac921b10cf951e656f88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01219",
    "kind": "arxiv",
    "version": 2
  }
}