Pith Number

pith:KGZEZSL7

pith:2023:KGZEZSL7HPOFGNXCHKBF3JYNRG

not attested not anchored not stored refs pending

A Levenberg-Marquardt Method for Nonsmooth Regularized Least Squares

Aleksandr Y. Aravkin, Dominique Orban, Robert Baraldi

arxiv:2301.02347 v1 · 2023-01-06 · math.OC · 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{KGZEZSL7HPOFGNXCHKBF3JYNRG}

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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.

Cited by

1 paper in Pith

Projected proximal gradient trust-region algorithm for nonsmooth optimization

Receipt and verification

First computed	2026-07-05T05:31:05.543431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51b24cc97f3bdc5336e23a825da70d89856885853bffb9e800f10e4a2c6fcfe1

Aliases

arxiv: 2301.02347 · arxiv_version: 2301.02347v1 · doi: 10.48550/arxiv.2301.02347 · pith_short_12: KGZEZSL7HPOF · pith_short_16: KGZEZSL7HPOFGNXC · pith_short_8: KGZEZSL7

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/KGZEZSL7HPOFGNXCHKBF3JYNRG \
  | 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: 51b24cc97f3bdc5336e23a825da70d89856885853bffb9e800f10e4a2c6fcfe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a47393fa4ec274386dfc553cda17ed931d475f063cb6fbc145f385d9ce3ad97",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2023-01-06T01:11:14Z",
    "title_canon_sha256": "983355d60a8ea0f0fe9182185d9486ae3420e7ca7be7e66801f1eec08252daae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.02347",
    "kind": "arxiv",
    "version": 1
  }
}