Pith Number

pith:PIEJISJY

pith:2019:PIEJISJYQMRJCOKWX5HMLM23PH

not attested not anchored not stored refs pending

Nonnegative Matrix Factorization with Local Similarity Learning

Chenglizhao Chen, Chong Peng, Qiang Cheng, Zhao Kang

arxiv:1907.04150 v1 · 2019-07-09 · cs.LG · cs.CV · 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{PIEJISJYQMRJCOKWX5HMLM23PH}

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	2026-05-17T23:41:03.179757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a089449388322913956bf4ec5b35b79f30bc8252a35642b05cf98d479a3e87b

Aliases

arxiv: 1907.04150 · arxiv_version: 1907.04150v1 · doi: 10.48550/arxiv.1907.04150 · pith_short_12: PIEJISJYQMRJ · pith_short_16: PIEJISJYQMRJCOKW · pith_short_8: PIEJISJY

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/PIEJISJYQMRJCOKWX5HMLM23PH \
  | 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: 7a089449388322913956bf4ec5b35b79f30bc8252a35642b05cf98d479a3e87b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d4f8ec2ef16b956f021b573c297306cdfd63c956ac7288465a18bb15c6c88ee",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-07-09T13:25:50Z",
    "title_canon_sha256": "acdeebd0cc61f34ea1e60d65a98b8e8aa5f40a4c545f11f23bbfc9fc7762b13e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04150",
    "kind": "arxiv",
    "version": 1
  }
}