Pith Number

pith:NQSVL7KW

pith:2015:NQSVL7KW2W5VU7TXUNOJWOR4HJ

not attested not anchored not stored refs pending

Stirling permutations, cycle structures of permutations and perfect matchings

Shi-Mei Ma, Yeong-Nan Yeh

arxiv:1503.06601 v2 · 2015-03-23 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQSVL7KW2W5VU7TXUNOJWOR4HJ}

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	2026-05-18T02:19:00.194383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c2555fd56d5bb5a7e77a35c9b3a3c3a46418895763fc39303f17385766f9e4f

Aliases

arxiv: 1503.06601 · arxiv_version: 1503.06601v2 · doi: 10.48550/arxiv.1503.06601 · pith_short_12: NQSVL7KW2W5V · pith_short_16: NQSVL7KW2W5VU7TX · pith_short_8: NQSVL7KW

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/NQSVL7KW2W5VU7TXUNOJWOR4HJ \
  | 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: 6c2555fd56d5bb5a7e77a35c9b3a3c3a46418895763fc39303f17385766f9e4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f67abee203af037717697cfc5d721866c9622a0e5a1dd421e8b767a8fdd8352",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-03-23T11:26:50Z",
    "title_canon_sha256": "0e545be8ad7b0e33663e8d40004424112c5bb783ad6a8b9f115387980bfc6c61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06601",
    "kind": "arxiv",
    "version": 2
  }
}