Pith Number

pith:6WAX6RMD

pith:2016:6WAX6RMDYJDOVNWOAQRGIRGEX7

not attested not anchored not stored refs pending

A global optimization algorithm for sparse mixed membership matrix factorization

Andrew Trapp, Chuangqi Wang, Fan Zhang, Patrick Flaherty

arxiv:1610.06145 v2 · 2016-10-19 · stat.ME · 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{6WAX6RMDYJDOVNWOAQRGIRGEX7}

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	2026-05-18T01:01:21.743075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5817f4583c246eab6ce04226444c4bff239c0885fb2faf773a9839c833dce67

Aliases

arxiv: 1610.06145 · arxiv_version: 1610.06145v2 · doi: 10.48550/arxiv.1610.06145 · pith_short_12: 6WAX6RMDYJDO · pith_short_16: 6WAX6RMDYJDOVNWO · pith_short_8: 6WAX6RMD

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/6WAX6RMDYJDOVNWOAQRGIRGEX7 \
  | 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: f5817f4583c246eab6ce04226444c4bff239c0885fb2faf773a9839c833dce67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca40f449048a80bc03bfb54fff105b19df9492a951f1d69cad606114403aa24f",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2016-10-19T18:39:41Z",
    "title_canon_sha256": "650604e3d4f8f546c697dc757574d2e5b7b3af7bda7858bdc636b646596abc70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.06145",
    "kind": "arxiv",
    "version": 2
  }
}