Pith Number

pith:PVZCC3BU

pith:2014:PVZCC3BUV5LIJBBTTVKRMRCCHF

not attested not anchored not stored refs pending

Group Symmetric Robust Covariance Estimation

Ami Wiesel, Dmitry Trushin, Ilya Soloveychik

arxiv:1412.2345 v3 · 2014-12-07 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PVZCC3BUV5LIJBBTTVKRMRCCHF}

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	2026-05-18T01:31:53.255009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d72216c34af568484339d5516444239617f9cf2f70894dfbb76757c1f967209

Aliases

arxiv: 1412.2345 · arxiv_version: 1412.2345v3 · doi: 10.48550/arxiv.1412.2345 · pith_short_12: PVZCC3BUV5LI · pith_short_16: PVZCC3BUV5LIJBBT · pith_short_8: PVZCC3BU

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/PVZCC3BUV5LIJBBTTVKRMRCCHF \
  | 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: 7d72216c34af568484339d5516444239617f9cf2f70894dfbb76757c1f967209

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1c71cb42b1fef677230fa536562e629aa15e6f81b2e55321ffe8f18cd530be9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2014-12-07T11:51:59Z",
    "title_canon_sha256": "d088d94d117400d3822a5020c6ae6b400f1e79a24a57ce77a673edf02b525b67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2345",
    "kind": "arxiv",
    "version": 3
  }
}