Pith Number

pith:W2ACJZ4Y

pith:2012:W2ACJZ4Y64TPBMFXI56PBWL337

not attested not anchored not stored refs pending

Confidence sets in sparse regression

Richard Nickl, Sara van de Geer

arxiv:1209.1508 v4 · 2012-09-07 · 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{W2ACJZ4Y64TPBMFXI56PBWL337}

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	2026-05-18T03:04:22.659055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b68024e798f726f0b0b7477cf0d97bdfe2cd70fa9e58110a4b7534ce4aba99a7

Aliases

arxiv: 1209.1508 · arxiv_version: 1209.1508v4 · doi: 10.48550/arxiv.1209.1508 · pith_short_12: W2ACJZ4Y64TP · pith_short_16: W2ACJZ4Y64TPBMFX · pith_short_8: W2ACJZ4Y

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/W2ACJZ4Y64TPBMFXI56PBWL337 \
  | 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: b68024e798f726f0b0b7477cf0d97bdfe2cd70fa9e58110a4b7534ce4aba99a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94962655da8219c00336e2c926f4945826ca16ffbc2a4947b3bed50740cfdcac",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-09-07T12:00:20Z",
    "title_canon_sha256": "c40caa84358a22291ff699fb4a1d42874543b1d71df2aabbe0da78d42e56e981"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1508",
    "kind": "arxiv",
    "version": 4
  }
}