Pith Number

pith:5QVWFQ4H

pith:2018:5QVWFQ4HNPWF5GQ232EUYNXTL3

not attested not anchored not stored refs pending

On approximate equivalence of modularity, D and non-negative matrix factorization

Chao Yan, Hui-Min Cheng, Xianjun Yin, Zhenhai Chang, Zhong-Yuan Zhang

arxiv:1801.03618 v2 · 2018-01-11 · cs.SI · physics.soc-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QVWFQ4HNPWF5GQ232EUYNXTL3}

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	2026-05-18T00:25:33.376308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec2b62c3876bec5e9a1ade894c36f35ec53d182c327db15cfc1c20b0509d94b1

Aliases

arxiv: 1801.03618 · arxiv_version: 1801.03618v2 · doi: 10.48550/arxiv.1801.03618 · pith_short_12: 5QVWFQ4HNPWF · pith_short_16: 5QVWFQ4HNPWF5GQ2 · pith_short_8: 5QVWFQ4H

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/5QVWFQ4HNPWF5GQ232EUYNXTL3 \
  | 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: ec2b62c3876bec5e9a1ade894c36f35ec53d182c327db15cfc1c20b0509d94b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad0f99be7717cce04b4be8a4671aaaf2d56592e093c1a7718264470e715343dc",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-01-11T02:51:10Z",
    "title_canon_sha256": "7a6db1f170e4758161aef1867ca5b868d1b2df14192b2442a010ff8776f4825f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03618",
    "kind": "arxiv",
    "version": 2
  }
}