Pith Number

pith:EZKVRD6E

pith:2015:EZKVRD6EKJS3QVGFZM2ARNMCOV

not attested not anchored not stored refs pending

A Gauss-Seidel Iterative Thresholding Algorithm for lq Regularized Least Squares Regression

Jinshan Zeng, Shaobo Lin, Zhimin Peng

arxiv:1507.03173 v1 · 2015-07-12 · cs.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{EZKVRD6EKJS3QVGFZM2ARNMCOV}

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	2026-05-18T01:36:59.505802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2655588fc45265b854c5cb3408b582754a139ed51fc1259351cda664e70eea76

Aliases

arxiv: 1507.03173 · arxiv_version: 1507.03173v1 · doi: 10.48550/arxiv.1507.03173 · pith_short_12: EZKVRD6EKJS3 · pith_short_16: EZKVRD6EKJS3QVGF · pith_short_8: EZKVRD6E

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/EZKVRD6EKJS3QVGFZM2ARNMCOV \
  | 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: 2655588fc45265b854c5cb3408b582754a139ed51fc1259351cda664e70eea76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d8a1d52e660d5dfe4993837a4fe5d9e055df0a5f7b1117b28f2c1facc2f813c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2015-07-12T00:47:51Z",
    "title_canon_sha256": "b95773c5d897cd03ca781d45f3b73b15f6f70d3af70b2d91cbbeedb6bc1cb4fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03173",
    "kind": "arxiv",
    "version": 1
  }
}