Pith Number

pith:TVEBWJIQ

pith:2011:TVEBWJIQQEZPEEH2ALIPTNM4UT

not attested not anchored not stored refs pending

A General Theory of Concave Regularization for High Dimensional Sparse Estimation Problems

Cun-Hui Zhang, Tong Zhang

arxiv:1108.4988 v2 · 2011-08-25 · 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{TVEBWJIQQEZPEEH2ALIPTNM4UT}

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	2026-05-18T04:02:34.852589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d481b25108132f210fa02d0f9b59ca4da6418b7112fc24a3a0402df8360b1a7

Aliases

arxiv: 1108.4988 · arxiv_version: 1108.4988v2 · doi: 10.48550/arxiv.1108.4988 · pith_short_12: TVEBWJIQQEZP · pith_short_16: TVEBWJIQQEZPEEH2 · pith_short_8: TVEBWJIQ

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/TVEBWJIQQEZPEEH2ALIPTNM4UT \
  | 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: 9d481b25108132f210fa02d0f9b59ca4da6418b7112fc24a3a0402df8360b1a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f016bcd89613e212ac53520595f89d97600dac5dfa78e91ef01f5a89274aa7db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2011-08-25T01:48:58Z",
    "title_canon_sha256": "7ce37f1e0bc16b6f983ca98a3946222cdbac99dfd1b22febeb3abb4b21a68d4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4988",
    "kind": "arxiv",
    "version": 2
  }
}