Pith Number

pith:OI5STUY4

pith:2019:OI5STUY4JVRSDRRT4CHBVRPBBP

not attested not anchored not stored refs pending

Matrix Completion via Nonconvex Regularization: Convergence of the Proximal Gradient Algorithm

Fei Wen, Peilin Liu, Rendong Ying, Trieu-Kien Truong

arxiv:1903.00702 v1 · 2019-03-02 · cs.LG · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OI5STUY4JVRSDRRT4CHBVRPBBP}

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	2026-05-17T23:52:13.592802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

723b29d31c4d6321c633e08e1ac5e10bcec2b27b90c8c4c8c8763089fb634e48

Aliases

arxiv: 1903.00702 · arxiv_version: 1903.00702v1 · doi: 10.48550/arxiv.1903.00702 · pith_short_12: OI5STUY4JVRS · pith_short_16: OI5STUY4JVRSDRRT · pith_short_8: OI5STUY4

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/OI5STUY4JVRSDRRT4CHBVRPBBP \
  | 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: 723b29d31c4d6321c633e08e1ac5e10bcec2b27b90c8c4c8c8763089fb634e48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cc605bc8b8d5c4324840d54865887a3d12039e29a2a735fdb3dc2e66d782ca3",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-03-02T13:29:39Z",
    "title_canon_sha256": "54d632cab9d6f78bf16353d0f0423e0c4bce7a227fc17ff7f00b2f0eaa031967"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.00702",
    "kind": "arxiv",
    "version": 1
  }
}