Pith Number

pith:VH77S4HM

pith:2012:VH77S4HMFZF6ZY3A3ANWUKWLBE

not attested not anchored not stored refs pending

Adaptive Covariance Estimation with model selection

H\'el\`ene Lescornel (IMT), Jean-Michel Loubes (IMT), Rolando Biscay (IMFAV-DEUV)

arxiv:1203.0107 v1 · 2012-03-01 · 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{VH77S4HMFZF6ZY3A3ANWUKWLBE}

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	2026-05-18T04:01:01.294787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9fff970ec2e4bece360d81b6a2acb090d278b76fb6c840beb3ef151c829bb39

Aliases

arxiv: 1203.0107 · arxiv_version: 1203.0107v1 · doi: 10.48550/arxiv.1203.0107 · pith_short_12: VH77S4HMFZF6 · pith_short_16: VH77S4HMFZF6ZY3A · pith_short_8: VH77S4HM

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/VH77S4HMFZF6ZY3A3ANWUKWLBE \
  | 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: a9fff970ec2e4bece360d81b6a2acb090d278b76fb6c840beb3ef151c829bb39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4595c73e48a30d8acc8942a2cb61e8fdb73ef6b2787f7c826ef8c119ef8c5ff",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-03-01T07:39:51Z",
    "title_canon_sha256": "4b1c4febcf41c4390ee2e18d48872aecdff455713eb62636c42f189749b9c3f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0107",
    "kind": "arxiv",
    "version": 1
  }
}