Pith Number

pith:4LGYN7DY

pith:2013:4LGYN7DYIBOBO4MJTUTPIXEGNP

not attested not anchored not stored refs pending

Near-separable Non-negative Matrix Factorization with $\ell_1$- and Bregman Loss Functions

Abhishek Kumar, Vikas Sindhwani

arxiv:1312.7167 v1 · 2013-12-27 · stat.ML · cs.CV · 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{4LGYN7DYIBOBO4MJTUTPIXEGNP}

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	2026-05-18T03:03:45.608616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2cd86fc78405c1771899d26f45c866bc192bbadeb1cbf3955c25a3a66b5e334

Aliases

arxiv: 1312.7167 · arxiv_version: 1312.7167v1 · doi: 10.48550/arxiv.1312.7167 · pith_short_12: 4LGYN7DYIBOB · pith_short_16: 4LGYN7DYIBOBO4MJ · pith_short_8: 4LGYN7DY

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/4LGYN7DYIBOBO4MJTUTPIXEGNP \
  | 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: e2cd86fc78405c1771899d26f45c866bc192bbadeb1cbf3955c25a3a66b5e334

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03dd113bacdc0f955109a199e6353a5ea7b70f160cdaae505a277714021fa1bd",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2013-12-27T01:10:00Z",
    "title_canon_sha256": "072c761bfe7ca90339c9ac1da128519cc48fd9c442f503097fce1721adbf9dc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7167",
    "kind": "arxiv",
    "version": 1
  }
}