Pith Number

pith:Z3UJ7WB2

pith:2019:Z3UJ7WB2SNPUCW6HCFXBF7GPRP

not attested not anchored not stored refs pending

SMURFF: a High-Performance Framework for Matrix Factorization

Adam Arany, Hugo Ceulemans, Imen Chakroun, Jaak Simm, J\"org Wegner, Jos\'e Felipe Golib Dzib, Roel Wuyts, Thanh Le Van, Thomas J. Ashby, Tom Vander Aa, Vladimir Chupakhin, Wilfried Verachtert, Yves Moreau

arxiv:1904.02514 v3 · 2019-04-04 · 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{Z3UJ7WB2SNPUCW6HCFXBF7GPRP}

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	2026-05-17T23:39:24.453052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cee89fd83a935f415bc7116e12fccf8be048f6792c319f585548d95ae37c15a0

Aliases

arxiv: 1904.02514 · arxiv_version: 1904.02514v3 · doi: 10.48550/arxiv.1904.02514 · pith_short_12: Z3UJ7WB2SNPU · pith_short_16: Z3UJ7WB2SNPUCW6H · pith_short_8: Z3UJ7WB2

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/Z3UJ7WB2SNPUCW6HCFXBF7GPRP \
  | 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: cee89fd83a935f415bc7116e12fccf8be048f6792c319f585548d95ae37c15a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fd1150f4f7862b14f2fd23ca65224bc3d8bd25a97812687081ebca0b90a18fe",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-04T12:36:36Z",
    "title_canon_sha256": "d63d714fca9613ad0ccf5b77eb42fd50fc49491430d68f10bf665227c1bec941"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02514",
    "kind": "arxiv",
    "version": 3
  }
}