Pith Number

pith:B63QFSI6

pith:2019:B63QFSI6RE2KAPX4HBCXTYUTWT

not attested not anchored not stored refs pending

Online matrix factorization for Markovian data and applications to Network Dictionary Learning

Deanna Needell, Hanbaek Lyu, Laura Balzano

arxiv:1911.01931 v6 · 2019-11-05 · cs.LG · cs.DS · math.OC · math.PR · 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{B63QFSI6RE2KAPX4HBCXTYUTWT}

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	2026-07-05T01:49:48.266721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fb702c91e8934a03efc384579e293b4ec90f178dd06fed62c4778896e8d1bf3

Aliases

arxiv: 1911.01931 · arxiv_version: 1911.01931v6 · doi: 10.48550/arxiv.1911.01931 · pith_short_12: B63QFSI6RE2K · pith_short_16: B63QFSI6RE2KAPX4 · pith_short_8: B63QFSI6

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/B63QFSI6RE2KAPX4HBCXTYUTWT \
  | 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: 0fb702c91e8934a03efc384579e293b4ec90f178dd06fed62c4778896e8d1bf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8ac63aad3d18579607813515f31341dd228572689637de02b0baebfae4c328d",
    "cross_cats_sorted": [
      "cs.DS",
      "math.OC",
      "math.PR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-11-05T16:47:28Z",
    "title_canon_sha256": "bfa5b5358583e3f1de10abc2c5ed40dd3681632f718e2626efc081d1fbc00491"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.01931",
    "kind": "arxiv",
    "version": 6
  }
}