Pith Number

pith:MU6F4BKZ

pith:2012:MU6F4BKZUQPXURGVHU6DDA72QY

not attested not anchored not stored refs pending

Group descent algorithms for nonconvex penalized linear and logistic regression models with grouped predictors

Jian Huang, Patrick Breheny

arxiv:1209.2160 v2 · 2012-09-10 · stat.CO · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MU6F4BKZUQPXURGVHU6DDA72QY}

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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	2026-05-18T01:10:55.002904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

653c5e0559a41f7a44d53d3c3183fa8606ed4a942c255b4279dcef32431ea31f

Aliases

arxiv: 1209.2160 · arxiv_version: 1209.2160v2 · doi: 10.48550/arxiv.1209.2160 · pith_short_12: MU6F4BKZUQPX · pith_short_16: MU6F4BKZUQPXURGV · pith_short_8: MU6F4BKZ

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/MU6F4BKZUQPXURGVHU6DDA72QY \
  | 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: 653c5e0559a41f7a44d53d3c3183fa8606ed4a942c255b4279dcef32431ea31f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21b84bc7172b46bb1e134036ee02b10a23eccb424be778e327045b78a8c3638a",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2012-09-10T21:13:29Z",
    "title_canon_sha256": "19f70848332f5255c25f76d05071c6fb47cc6d65405200db7efc8367b598fa5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2160",
    "kind": "arxiv",
    "version": 2
  }
}