Pith Number

pith:5KLL35CN

pith:2017:5KLL35CN7JEWCSVZXDCOWJAEEK

not attested not anchored not stored refs pending

Deep Approximately Orthogonal Nonnegative Matrix Factorization for Clustering

Guoxu Zhou, Kan Xie, Yuning Qiu

arxiv:1711.07437 v1 · 2017-11-20 · 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{5KLL35CN7JEWCSVZXDCOWJAEEK}

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	2026-05-18T00:30:10.171655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea96bdf44dfa49614ab9b8c4eb2404228654aefb3c6c034b288cce3a89689827

Aliases

arxiv: 1711.07437 · arxiv_version: 1711.07437v1 · doi: 10.48550/arxiv.1711.07437 · pith_short_12: 5KLL35CN7JEW · pith_short_16: 5KLL35CN7JEWCSVZ · pith_short_8: 5KLL35CN

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/5KLL35CN7JEWCSVZXDCOWJAEEK \
  | 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: ea96bdf44dfa49614ab9b8c4eb2404228654aefb3c6c034b288cce3a89689827

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da266b1d54697a7630c3918afd1a25d6887fd458bcb6f9be3752cb41f3a35525",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2017-11-20T17:47:25Z",
    "title_canon_sha256": "71c8214720118e290b04990452dfaabac2d7e8fcd092c7f7496c531e2a7672f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07437",
    "kind": "arxiv",
    "version": 1
  }
}