Pith Number

pith:EX5E5JH6

pith:2012:EX5E5JH62ZKZPEDGXBKWHMXELE

not attested not anchored not stored refs pending

Adaptive covariance matrix estimation through block thresholding

Ming Yuan, T. Tony Cai

arxiv:1211.0459 v1 · 2012-11-02 · 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{EX5E5JH62ZKZPEDGXBKWHMXELE}

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	2026-05-18T03:41:40.902946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25fa4ea4fed655979066b85563b2e459362064506720ec151685d1df4ad3019f

Aliases

arxiv: 1211.0459 · arxiv_version: 1211.0459v1 · doi: 10.48550/arxiv.1211.0459 · pith_short_12: EX5E5JH62ZKZ · pith_short_16: EX5E5JH62ZKZPEDG · pith_short_8: EX5E5JH6

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/EX5E5JH62ZKZPEDGXBKWHMXELE \
  | 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: 25fa4ea4fed655979066b85563b2e459362064506720ec151685d1df4ad3019f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0da160c804be9f5767db9265a0305f347f46332e748e817c7a73432993bce81",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-11-02T14:33:02Z",
    "title_canon_sha256": "0ce2f94aa8807cbecf12de0c28b7a19b70d0ffba158d4ba1394c51e7c18c11f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0459",
    "kind": "arxiv",
    "version": 1
  }
}