Pith Number

pith:H7CQINXU

pith:2011:H7CQINXUCLGJREWAH5IJASHO7J

not attested not anchored not stored refs pending

Trace Lasso: a trace norm regularization for correlated designs

Edouard Grave (LIENS, Francis Bach (LIENS, Guillaume Obozinski (LIENS, INRIA Paris - Rocquencourt)

arxiv:1109.1990 v1 · 2011-09-09 · cs.LG · 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{H7CQINXUCLGJREWAH5IJASHO7J}

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	2026-05-18T04:13:15.523833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fc50436f412cc9892c03f509048eefa4c83ccc0fb2c0fbdca92ceed9a83c960

Aliases

arxiv: 1109.1990 · arxiv_version: 1109.1990v1 · doi: 10.48550/arxiv.1109.1990 · pith_short_12: H7CQINXUCLGJ · pith_short_16: H7CQINXUCLGJREWA · pith_short_8: H7CQINXU

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/H7CQINXUCLGJREWAH5IJASHO7J \
  | 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: 3fc50436f412cc9892c03f509048eefa4c83ccc0fb2c0fbdca92ceed9a83c960

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63413aa16855f614a1d3f16ce5202e336330ff0c1a8e0a79ccebf37fc3c46cdb",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2011-09-09T13:01:41Z",
    "title_canon_sha256": "f03cd65a404d34fb98e37134779723711e7d6d6d0ad8fa83d6406c89965b80de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1990",
    "kind": "arxiv",
    "version": 1
  }
}