Pith Number

pith:UN4MP6VZ

pith:2022:UN4MP6VZ67ASRAAO2NBKH2FLEV

not attested not anchored not stored refs pending

Adaptive Weighted Nonnegative Matrix Factorization for Robust Feature Representation

Can Tong, Chen Li, Junhang Li, Qiang He, Tingting Shen, Yudong Yao, YueYang Teng

arxiv:2206.03020 v1 · 2022-06-07 · 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{UN4MP6VZ67ASRAAO2NBKH2FLEV}

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	2026-07-05T04:29:38.429231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a378c7fab9f7c128800ed342a3e8ab25540e20897dd04ac8caf35a2527bc58b3

Aliases

arxiv: 2206.03020 · arxiv_version: 2206.03020v1 · doi: 10.48550/arxiv.2206.03020 · pith_short_12: UN4MP6VZ67AS · pith_short_16: UN4MP6VZ67ASRAAO · pith_short_8: UN4MP6VZ

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/UN4MP6VZ67ASRAAO2NBKH2FLEV \
  | 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: a378c7fab9f7c128800ed342a3e8ab25540e20897dd04ac8caf35a2527bc58b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d26368b79b35ea849c6987a97815f2105a41e0a7072f1c51b9c3cd84116d957",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-06-07T05:27:08Z",
    "title_canon_sha256": "83e41bc1afd86a6d77f9e120042b1720e26bbcf20435930166a879507da9dfd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.03020",
    "kind": "arxiv",
    "version": 1
  }
}