Pith Number

pith:QGP5MMBR

pith:2016:QGP5MMBREN7CVZZEWPLWR5TOUX

not attested not anchored not stored refs pending

Subsampled online matrix factorization with convergence guarantees

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

arxiv:1611.10041 v1 · 2016-11-30 · math.OC · cs.LG · 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{QGP5MMBREN7CVZZEWPLWR5TOUX}

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	2026-05-18T00:56:05.068790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

819fd63031237e2ae724b3d768f66ea5f01e4f7a13d30fc1b29339f43143863b

Aliases

arxiv: 1611.10041 · arxiv_version: 1611.10041v1 · doi: 10.48550/arxiv.1611.10041 · pith_short_12: QGP5MMBREN7C · pith_short_16: QGP5MMBREN7CVZZE · pith_short_8: QGP5MMBR

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/QGP5MMBREN7CVZZEWPLWR5TOUX \
  | 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: 819fd63031237e2ae724b3d768f66ea5f01e4f7a13d30fc1b29339f43143863b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3987b315d7dc3e99f25655ade73da780320a6eb2cc100fd85c6aef78941a1899",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-11-30T08:10:58Z",
    "title_canon_sha256": "365655cd72c470cac7c798949d6fee912c7055fcce2bdc01404811bb055c20fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.10041",
    "kind": "arxiv",
    "version": 1
  }
}