Pith Number

pith:DI5Z57SZ

pith:2011:DI5Z57SZ2ZUUGH4U36WK4FEUW7

not attested not anchored not stored refs pending

High dimensional matrix estimation with unknown variance of the noise

Modal'x), Olga Klopp (CREST, St\'ephane Gaiffas (CMAP)

arxiv:1112.3055 v3 · 2011-12-13 · 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{DI5Z57SZ2ZUUGH4U36WK4FEUW7}

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	2026-05-18T02:28:13.661272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a3b9efe59d669431f94dfacae1494b7f56901df8da7d7b5cdbcbc60535676fc

Aliases

arxiv: 1112.3055 · arxiv_version: 1112.3055v3 · doi: 10.48550/arxiv.1112.3055 · pith_short_12: DI5Z57SZ2ZUU · pith_short_16: DI5Z57SZ2ZUUGH4U · pith_short_8: DI5Z57SZ

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/DI5Z57SZ2ZUUGH4U36WK4FEUW7 \
  | 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: 1a3b9efe59d669431f94dfacae1494b7f56901df8da7d7b5cdbcbc60535676fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06cfd17ee5eadebbb811e3b498c0f7ab840e2e699cd552b02c1d5836195d27ed",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2011-12-13T21:48:28Z",
    "title_canon_sha256": "2cf2b7fe4ce15f37768aa6d34c5095f3378a79634b15e9c4d66c7a5155c7b5f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3055",
    "kind": "arxiv",
    "version": 3
  }
}