Pith Number

pith:WC2JEOE2

pith:2018:WC2JEOE2PSSA67PR4TBPL7KKUP

not attested not anchored not stored refs pending

Coherence-Based Performance Guarantee of Regularized $\ell_{1}$-Norm Minimization and Beyond

Feng Zhang, Jianjun Wang, Wendong Wang, Zhi Wang

arxiv:1812.03739 v1 · 2018-12-10 · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WC2JEOE2PSSA67PR4TBPL7KKUP}

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	2026-05-17T23:58:44.018285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0b492389a7ca40f7df1e4c2f5fd4aa3f45565b9cb4bff5e89876b109a9a27a6

Aliases

arxiv: 1812.03739 · arxiv_version: 1812.03739v1 · doi: 10.48550/arxiv.1812.03739 · pith_short_12: WC2JEOE2PSSA · pith_short_16: WC2JEOE2PSSA67PR · pith_short_8: WC2JEOE2

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/WC2JEOE2PSSA67PR4TBPL7KKUP \
  | 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: b0b492389a7ca40f7df1e4c2f5fd4aa3f45565b9cb4bff5e89876b109a9a27a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23466d4cd1c391ce70f2418c6f8f3e3759f2e5d9cf8027ae6b68b14e91c97ad6",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2018-12-10T11:22:48Z",
    "title_canon_sha256": "dd7eb7066c0420a910d1c9125e321e17bd4d3cdd0b4b9eced1e1a1fbd352a433"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.03739",
    "kind": "arxiv",
    "version": 1
  }
}