Pith Number

pith:KTHZZN3Y

pith:2018:KTHZZN3YVFZ7EK2INDNYJ6QECM

not attested not anchored not stored refs pending

Global Optimality in Distributed Low-rank Matrix Factorization

Gongguo Tang, Michael B. Wakin, Qiuwei Li, Xinshuo Yang, Zhihui Zhu

arxiv:1811.03129 v2 · 2018-11-07 · math.OC · cs.LG · 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{KTHZZN3YVFZ7EK2INDNYJ6QECM}

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	2026-05-17T23:57:30.898373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54cf9cb778a973f22b4868db84fa04130778cb4acc206d4379cc0ccc7a4744ff

Aliases

arxiv: 1811.03129 · arxiv_version: 1811.03129v2 · doi: 10.48550/arxiv.1811.03129 · pith_short_12: KTHZZN3YVFZ7 · pith_short_16: KTHZZN3YVFZ7EK2I · pith_short_8: KTHZZN3Y

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/KTHZZN3YVFZ7EK2INDNYJ6QECM \
  | 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: 54cf9cb778a973f22b4868db84fa04130778cb4acc206d4379cc0ccc7a4744ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "035e0f8b0648adc77a548d5145bb438d40461ece8b5088071151975f3f8b4bab",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-11-07T19:48:20Z",
    "title_canon_sha256": "2eca5e5b86c4c11de7d243c62258ca6d24f81687ce523e06377d73526413e9f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03129",
    "kind": "arxiv",
    "version": 2
  }
}