Pith Number

pith:HZJ3BP42

pith:2014:HZJ3BP42ARX5APDFGKZARBWSR6

not attested not anchored not stored refs pending

Exact penalty decomposition method for zero-norm minimization based on MPEC formulation

Shaohua Pan, Shujun Bi, Xiaolan Liu

arxiv:1412.4452 v1 · 2014-12-15 · math.OC · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HZJ3BP42ARX5APDFGKZARBWSR6}

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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	2026-05-18T02:31:19.159351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e53b0bf9a046fd03c6532b20886d28fa17f31f22353ac27cbcb352394c3e834

Aliases

arxiv: 1412.4452 · arxiv_version: 1412.4452v1 · doi: 10.48550/arxiv.1412.4452 · pith_short_12: HZJ3BP42ARX5 · pith_short_16: HZJ3BP42ARX5APDF · pith_short_8: HZJ3BP42

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/HZJ3BP42ARX5APDFGKZARBWSR6 \
  | 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: 3e53b0bf9a046fd03c6532b20886d28fa17f31f22353ac27cbcb352394c3e834

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d3c51b01a0afc5bfb72c9f899c6c7245530b988cf90f189d42244b5c1083983",
    "cross_cats_sorted": [
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-12-15T03:18:34Z",
    "title_canon_sha256": "604ef0ddc2ffa269bc5b3058f83cd8a20152d39a465fd3bc59b73d02fa79b994"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.4452",
    "kind": "arxiv",
    "version": 1
  }
}