Pith Number

pith:ZQDG4L7M

pith:2013:ZQDG4L7MXA3E5FGWEWYZ72EEKD

not attested not anchored not stored refs pending

The Group Square-Root Lasso: Theoretical Properties and Fast Algorithms

Florentina Bunea, Johannes Lederer, Yiyuan She

arxiv:1302.0261 v2 · 2013-02-01 · math.ST · stat.CO · 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{ZQDG4L7MXA3E5FGWEWYZ72EEKD}

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	2026-05-18T03:17:11.613394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc066e2fecb8364e94d625b19fe88450c82dbd998d13f878d9a9bc45eb32c12a

Aliases

arxiv: 1302.0261 · arxiv_version: 1302.0261v2 · doi: 10.48550/arxiv.1302.0261 · pith_short_12: ZQDG4L7MXA3E · pith_short_16: ZQDG4L7MXA3E5FGW · pith_short_8: ZQDG4L7M

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/ZQDG4L7MXA3E5FGWEWYZ72EEKD \
  | 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: cc066e2fecb8364e94d625b19fe88450c82dbd998d13f878d9a9bc45eb32c12a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8dfe93b97ad5ecafe9b0a69800bd1b557767345a87741c55e8e97b27d0e2031",
    "cross_cats_sorted": [
      "stat.CO",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-02-01T19:48:01Z",
    "title_canon_sha256": "8f424bdf0322ab6a9e0c3337b5a0aece293f652d5260fcd309559058c787bdaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.0261",
    "kind": "arxiv",
    "version": 2
  }
}