Pith Number

pith:UYUQBO7C

pith:2019:UYUQBO7CYJ3HLSHLZH7BIEFEZJ

not attested not anchored not stored refs pending

A dual Newton based preconditioned proximal point algorithm for exclusive lasso models

Defeng Sun, Kim-Chuan Toh, Meixia Lin, Yancheng Yuan

arxiv:1902.00151 v2 · 2019-02-01 · math.OC · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UYUQBO7CYJ3HLSHLZH7BIEFEZJ}

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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	2026-07-05T00:24:36.642824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a62900bbe2c27675c8ebc9fe1410a4ca7f21afe46d3d06e502900bbc1b31336b

Aliases

arxiv: 1902.00151 · arxiv_version: 1902.00151v2 · doi: 10.48550/arxiv.1902.00151 · pith_short_12: UYUQBO7CYJ3H · pith_short_16: UYUQBO7CYJ3HLSHL · pith_short_8: UYUQBO7C

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/UYUQBO7CYJ3HLSHLZH7BIEFEZJ \
  | 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: a62900bbe2c27675c8ebc9fe1410a4ca7f21afe46d3d06e502900bbc1b31336b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b39ceb4c07f1aa0fab5b7a51a902ffa432cea00f5754bf0e35acd9c162045f2",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-02-01T02:20:40Z",
    "title_canon_sha256": "96269933a63c4df773d72a49a077e8a34b2de8e1e290a1437bbc70d6925f7c1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00151",
    "kind": "arxiv",
    "version": 2
  }
}