Pith Number

pith:E4MGXQQA

pith:2012:E4MGXQQAYKJMCDD7L2MSMI5VE2

not attested not anchored not stored refs pending

Fast and Robust Recursive Algorithms for Separable Nonnegative Matrix Factorization

Nicolas Gillis, Stephen A. Vavasis

arxiv:1208.1237 v3 · 2012-08-06 · stat.ML · cs.LG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4MGXQQAYKJMCDD7L2MSMI5VE2}

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.

Cited by

1 paper in Pith

FinTextSim: Enhancing Financial Text Analysis with BERTopic

Receipt and verification

First computed	2026-05-18T02:54:54.487450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27186bc200c292c10c7f5e992623b526a2f23de957ddc90e73c1a6578328d811

Aliases

arxiv: 1208.1237 · arxiv_version: 1208.1237v3 · doi: 10.48550/arxiv.1208.1237 · pith_short_12: E4MGXQQAYKJM · pith_short_16: E4MGXQQAYKJMCDD7 · pith_short_8: E4MGXQQA

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/E4MGXQQAYKJMCDD7L2MSMI5VE2 \
  | 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: 27186bc200c292c10c7f5e992623b526a2f23de957ddc90e73c1a6578328d811

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74a8b93cf6648d26e537609447ec4ddd74ab0a0b5bf4a728750aa7fcf903d033",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2012-08-06T18:49:07Z",
    "title_canon_sha256": "b37bc68ebff9f98ae76bc26c82e9877eb8720462659657564534a37d05e9b861"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1237",
    "kind": "arxiv",
    "version": 3
  }
}