Pith Number

pith:5FKLVFOX

pith:2021:5FKLVFOX4I7ZKFFJXZO2JODDHB

not attested not anchored not stored refs pending

Symmetric Sparse Boolean Matrix Factorization and Applications

Ruizhe Zhang, Runzhou Tao, Sitan Chen, Zhao Song

arxiv:2102.01570 v3 · 2021-02-02 · cs.LG · cs.CR · cs.DS · 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{5FKLVFOX4I7ZKFFJXZO2JODDHB}

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	2026-07-05T03:48:05.174716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e954ba95d7e23f9514a9be5da4b863385f4d4e3fb36ea5ba9ec7d8c19c4a6ed8

Aliases

arxiv: 2102.01570 · arxiv_version: 2102.01570v3 · doi: 10.48550/arxiv.2102.01570 · pith_short_12: 5FKLVFOX4I7Z · pith_short_16: 5FKLVFOX4I7ZKFFJ · pith_short_8: 5FKLVFOX

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/5FKLVFOX4I7ZKFFJXZO2JODDHB \
  | 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: e954ba95d7e23f9514a9be5da4b863385f4d4e3fb36ea5ba9ec7d8c19c4a6ed8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9b553fcaeafe9ddfe22eb42ecd68d4c455f4622a0689cbefe84f60236ac2b16",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.DS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-02-02T15:52:52Z",
    "title_canon_sha256": "bebd27e1348741550f5a0813410ab162b77b8cd0bbff02c09a535fe1fab94516"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.01570",
    "kind": "arxiv",
    "version": 3
  }
}