Pith Number

pith:YGV5TU5Q

pith:2026:YGV5TU5QQOLLOYBS6IC64WSGE3

not attested not anchored not stored refs pending

Maintaining Leiden Communities in Large Dynamic Graphs

Cheng Chen, Chunxu Lin, Yingqian Hu, Yixiang Fang, Yongmin Hu, Yumao Xie

arxiv:2601.08554 v5 · 2026-01-13 · cs.SI · cs.DB · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YGV5TU5QQOLLOYBS6IC64WSGE3}

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	2026-06-19T16:11:19.231481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1abd9d3b08396b76032f205ee5a4626e5c7bb45eacdcf7722f7128eb3c932b5

Aliases

arxiv: 2601.08554 · arxiv_version: 2601.08554v5 · doi: 10.48550/arxiv.2601.08554 · pith_short_12: YGV5TU5QQOLL · pith_short_16: YGV5TU5QQOLLOYBS · pith_short_8: YGV5TU5Q

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/YGV5TU5QQOLLOYBS6IC64WSGE3 \
  | 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: c1abd9d3b08396b76032f205ee5a4626e5c7bb45eacdcf7722f7128eb3c932b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "349697d380b6c0f7bacaad25956d4044310ba6a9d707bcc894755c3e89218abc",
    "cross_cats_sorted": [
      "cs.DB",
      "cs.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2026-01-13T13:39:22Z",
    "title_canon_sha256": "07c678193900c33293b1849fa6cbf9e01e4e8994c1141f38e17e0032b417cde8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.08554",
    "kind": "arxiv",
    "version": 5
  }
}