Pith Number

pith:5OTYGLFQ

pith:2019:5OTYGLFQFL3UIJ5Y7GNYBIQSC3

not attested not anchored not stored refs pending

Using Symbolic Computation to analyze some Children's Board Games

Doron Zeilberger, Shalosh B. Ekhad

arxiv:1907.09132 v1 · 2019-07-19 · math.HO · math.CO · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5OTYGLFQFL3UIJ5Y7GNYBIQSC3}

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	2026-05-17T23:40:00.007169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eba7832cb02af74427b8f99b80a21216d7a27e8d4f2aa09c52b288e9a27256de

Aliases

arxiv: 1907.09132 · arxiv_version: 1907.09132v1 · doi: 10.48550/arxiv.1907.09132 · pith_short_12: 5OTYGLFQFL3U · pith_short_16: 5OTYGLFQFL3UIJ5Y · pith_short_8: 5OTYGLFQ

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/5OTYGLFQFL3UIJ5Y7GNYBIQSC3 \
  | 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: eba7832cb02af74427b8f99b80a21216d7a27e8d4f2aa09c52b288e9a27256de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea23c6cd42ea399fc068a8e2d6083ce8f5b8fad69d42aa00a4684781f07e7c4c",
    "cross_cats_sorted": [
      "math.CO",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2019-07-19T00:02:43Z",
    "title_canon_sha256": "aa538c065af5a46a6feab5b419a69379be01ab4d5bc333d56f7742523769a66a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09132",
    "kind": "arxiv",
    "version": 1
  }
}