Pith Number

pith:NB3O7G2K

pith:2014:NB3O7G2KJ3UORC75RQROHZLJQC

not attested not anchored not stored refs pending

Some integral representations and properties of Lah numbers

Bai-Ni Guo, Feng Qi

arxiv:1402.2367 v2 · 2014-02-11 · math.CO · math.CA · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NB3O7G2KJ3UORC75RQROHZLJQC}

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	2026-05-18T02:39:23.863071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6876ef9b4a4ee8e88bfd8c22e3e56980ab2e125c23302fc11c65868955646080

Aliases

arxiv: 1402.2367 · arxiv_version: 1402.2367v2 · doi: 10.48550/arxiv.1402.2367 · pith_short_12: NB3O7G2KJ3UO · pith_short_16: NB3O7G2KJ3UORC75 · pith_short_8: NB3O7G2K

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/NB3O7G2KJ3UORC75RQROHZLJQC \
  | 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: 6876ef9b4a4ee8e88bfd8c22e3e56980ab2e125c23302fc11c65868955646080

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75fa74217a2863a6c3ac2b5eac82db123d2caef1c1b845154b9e35a1711fc2f6",
    "cross_cats_sorted": [
      "math.CA",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-02-11T04:17:18Z",
    "title_canon_sha256": "00f42b27a0a5a06c83f195ca9c58aaf36c76dd63af284182ac8424efac49c595"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2367",
    "kind": "arxiv",
    "version": 2
  }
}