Pith Number

pith:ASOMQZXT

pith:2018:ASOMQZXTBCJNLOOT3RAMYOJ7MQ

not attested not anchored not stored refs pending

Dropping Symmetry for Fast Symmetric Nonnegative Matrix Factorization

Kai Liu, Qiuwei Li, Xiao Li, Zhihui Zhu

arxiv:1811.05642 v1 · 2018-11-14 · 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{ASOMQZXTBCJNLOOT3RAMYOJ7MQ}

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	2026-05-18T00:00:42.449723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

049cc866f30892d5b9d3dc40cc393f6435ddf1416fbb4f0a7ea463a39157b00d

Aliases

arxiv: 1811.05642 · arxiv_version: 1811.05642v1 · doi: 10.48550/arxiv.1811.05642 · pith_short_12: ASOMQZXTBCJN · pith_short_16: ASOMQZXTBCJNLOOT · pith_short_8: ASOMQZXT

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/ASOMQZXTBCJNLOOT3RAMYOJ7MQ \
  | 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: 049cc866f30892d5b9d3dc40cc393f6435ddf1416fbb4f0a7ea463a39157b00d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "564f7af662d09c2f0be3f548dcdd3d62b65896cfec58f8e01d307c19af26d359",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-11-14T05:09:33Z",
    "title_canon_sha256": "0f9741147d37703216e7afa82d1978dfc4bf75efda19ea6aac8ec91594996229"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05642",
    "kind": "arxiv",
    "version": 1
  }
}