Pith Number

pith:3MUTM67I

pith:2016:3MUTM67IFSREKDGP7LDJAF7YEG

not attested not anchored not stored refs pending

Dictionary Learning for Massive Matrix Factorization

Arthur Mensch (PARIETAL), Bertrand Thirion (PARIETAL), Ga\"el Varoquaux (Parietal), Julien Mairal (LEAR)

arxiv:1605.00937 v2 · 2016-05-03 · stat.ML · cs.LG · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3MUTM67IFSREKDGP7LDJAF7YEG}

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	2026-05-18T00:30:50.829599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db29367be82ca2450ccffac69017f8219be45a6c47f0e17b02d99bef88fd5866

Aliases

arxiv: 1605.00937 · arxiv_version: 1605.00937v2 · doi: 10.48550/arxiv.1605.00937 · pith_short_12: 3MUTM67IFSRE · pith_short_16: 3MUTM67IFSREKDGP · pith_short_8: 3MUTM67I

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/3MUTM67IFSREKDGP7LDJAF7YEG \
  | 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: db29367be82ca2450ccffac69017f8219be45a6c47f0e17b02d99bef88fd5866

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26326dd91481f8cda2061a6a5ad24658f9051c9fbc4732cb0b656484fb97793c",
    "cross_cats_sorted": [
      "cs.LG",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2016-05-03T15:05:32Z",
    "title_canon_sha256": "f8f59cfd94346b39ef91caa4d6fb89d09e9b888af7f633436f5b314661d6b72b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.00937",
    "kind": "arxiv",
    "version": 2
  }
}