Pith Number

pith:4EUE2ROB

pith:2015:4EUE2ROBKRXIBWS22K3WNEYSED

not attested not anchored not stored refs pending

A position in infinite chess with game value $\omega^4$

C. D. A. Evans, Joel David Hamkins, Norman Lewis Perlmutter

arxiv:1510.08155 v1 · 2015-10-28 · math.LO · 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{4EUE2ROBKRXIBWS22K3WNEYSED}

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.

Cited by

1 paper in Pith

Emergent transfinite topological dynamics

Receipt and verification

First computed	2026-05-18T01:28:37.155216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1284d45c1546e80da5ad2b766931220fd15c3c9d0aac19649c9c670131c5434

Aliases

arxiv: 1510.08155 · arxiv_version: 1510.08155v1 · doi: 10.48550/arxiv.1510.08155 · pith_short_12: 4EUE2ROBKRXI · pith_short_16: 4EUE2ROBKRXIBWS2 · pith_short_8: 4EUE2ROB

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/4EUE2ROBKRXIBWS22K3WNEYSED \
  | 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: e1284d45c1546e80da5ad2b766931220fd15c3c9d0aac19649c9c670131c5434

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "538a51147bbee17aa8887cb9f13fab16d15f52214d216220e2b862a70101a10b",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-10-28T01:40:09Z",
    "title_canon_sha256": "d7780548e67185e3c538b7d51b4741ed4ca97c92c5a78880d2c62200495b4c06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08155",
    "kind": "arxiv",
    "version": 1
  }
}