Pith Number

pith:EONMHTBI

pith:2018:EONMHTBIPAUS6DAUYEEBS77XJ7

not attested not anchored not stored refs pending

Conway's doughnuts

Peter Doyle, Shikhin Sethi

arxiv:1804.04024 v1 · 2018-04-11 · math.HO · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EONMHTBIPAUS6DAUYEEBS77XJ7}

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	2026-05-18T00:18:42.318507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

239ac3cc2878292f0c14c108197ff74fe5a3fe8140b3383912631998da33c4dc

Aliases

arxiv: 1804.04024 · arxiv_version: 1804.04024v1 · doi: 10.48550/arxiv.1804.04024 · pith_short_12: EONMHTBIPAUS · pith_short_16: EONMHTBIPAUS6DAU · pith_short_8: EONMHTBI

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/EONMHTBIPAUS6DAUYEEBS77XJ7 \
  | 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: 239ac3cc2878292f0c14c108197ff74fe5a3fe8140b3383912631998da33c4dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "882fbc01dbc5737b398a06bcfe2723c2e5fc6a34d27a64d070e5ea07e3fda48a",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2018-04-11T14:36:33Z",
    "title_canon_sha256": "e0860d933bc63e6ea8da9d41ef9d9ba0fa7630968470d5df570866b174aeff50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04024",
    "kind": "arxiv",
    "version": 1
  }
}