Pith Number

pith:2J5WW2IT

pith:2011:2J5WW2ITLSKESXBA2PIADAYH5T

not attested not anchored not stored refs pending

Counting or producing all fixed cardinality transversals

Marcel Wild

arxiv:1106.0141 v2 · 2011-06-01 · cs.DM · 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{2J5WW2ITLSKESXBA2PIADAYH5T}

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	2026-05-18T00:49:52.963806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d27b6b69135c94495c20d3d0018307eccfa150729d46872b9e03d67204a21b06

Aliases

arxiv: 1106.0141 · arxiv_version: 1106.0141v2 · doi: 10.48550/arxiv.1106.0141 · pith_short_12: 2J5WW2ITLSKE · pith_short_16: 2J5WW2ITLSKESXBA · pith_short_8: 2J5WW2IT

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/2J5WW2ITLSKESXBA2PIADAYH5T \
  | 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: d27b6b69135c94495c20d3d0018307eccfa150729d46872b9e03d67204a21b06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b1e2a0e26cef77f75dc45d19784e750f689d226d57b91a3e04899064163594a",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-06-01T10:58:53Z",
    "title_canon_sha256": "75540b19d54dafff744a5ef5411524953daaa4e47bad59fc2f09c103775767a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.0141",
    "kind": "arxiv",
    "version": 2
  }
}