Pith Number

pith:PM6PXRNY

pith:2014:PM6PXRNYDVI2GTEQIOODX7XYB2

not attested not anchored not stored refs pending

Mean and variance estimation in high-dimensional heteroscedastic models with non-convex penalties

James Sharpnack, Mladen Kolar

arxiv:1410.7874 v2 · 2014-10-29 · math.ST · stat.ME · 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{PM6PXRNYDVI2GTEQIOODX7XYB2}

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	2026-05-18T02:39:00.581624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b3cfbc5b81d51a34c90439c3bfef80e983f2c0928928775f818c852def64a68

Aliases

arxiv: 1410.7874 · arxiv_version: 1410.7874v2 · doi: 10.48550/arxiv.1410.7874 · pith_short_12: PM6PXRNYDVI2 · pith_short_16: PM6PXRNYDVI2GTEQ · pith_short_8: PM6PXRNY

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/PM6PXRNYDVI2GTEQIOODX7XYB2 \
  | 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: 7b3cfbc5b81d51a34c90439c3bfef80e983f2c0928928775f818c852def64a68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a557ad2afb2efd8a08d04ee80ea2972f910c78aa39521fc905cfd952f80549a",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2014-10-29T05:06:52Z",
    "title_canon_sha256": "acdf5e3f572cfe4824dd92ca96896714fdec9e76a1cb43aa99cadfbf6063bd47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.7874",
    "kind": "arxiv",
    "version": 2
  }
}