Pith Number

pith:XBOZOWLW

pith:2018:XBOZOWLWWZAH733DRF25EBQ5JK

not attested not anchored not stored refs pending

A Quasi-Newton algorithm on the orthogonal manifold for NMF with transform learning

Alexandre Gramfort (PARIETAL), C\'edric F\'evotte (IRIT), Dylan Fagot (IRIT), Herwig Wendt (IRIT), Pierre Ablin (PARIETAL)

arxiv:1811.02225 v1 · 2018-11-06 · stat.ML · 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{XBOZOWLWWZAH733DRF25EBQ5JK}

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	2026-05-18T00:01:24.762796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b85d975976b6407fef638975d2061d4aa11d029408b34e46bf0b2a69539644ca

Aliases

arxiv: 1811.02225 · arxiv_version: 1811.02225v1 · doi: 10.48550/arxiv.1811.02225 · pith_short_12: XBOZOWLWWZAH · pith_short_16: XBOZOWLWWZAH733D · pith_short_8: XBOZOWLW

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/XBOZOWLWWZAH733DRF25EBQ5JK \
  | 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: b85d975976b6407fef638975d2061d4aa11d029408b34e46bf0b2a69539644ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e74a678f07386ac047c5e0dc041690aba3b2707d1a93178bc91ba56e25771d6",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-11-06T08:49:40Z",
    "title_canon_sha256": "f92be5d685a3be01f859f1cc75ffd467547559a27fb2d84df42583217c908936"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02225",
    "kind": "arxiv",
    "version": 1
  }
}