Pith Number

pith:ZCWWFNYE

pith:2017:ZCWWFNYEMT5ILJAJNFWU4YM73T

not attested not anchored not stored refs pending

No Tits alternative for cellular automata

Ville Salo

arxiv:1709.00858 v4 · 2017-09-04 · math.DS · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZCWWFNYEMT5ILJAJNFWU4YM73T}

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	2026-05-17T23:55:23.227431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8ad62b70464fa85a409696d4e619fdced43617f62a0749e65142beaf1755eba

Aliases

arxiv: 1709.00858 · arxiv_version: 1709.00858v4 · doi: 10.48550/arxiv.1709.00858 · pith_short_12: ZCWWFNYEMT5I · pith_short_16: ZCWWFNYEMT5ILJAJ · pith_short_8: ZCWWFNYE

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/ZCWWFNYEMT5ILJAJNFWU4YM73T \
  | 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: c8ad62b70464fa85a409696d4e619fdced43617f62a0749e65142beaf1755eba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27304c127c6083330619f1d9d7980a131049f5df55f935677eb74bf373ed1670",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-09-04T08:26:45Z",
    "title_canon_sha256": "604d65d47abaefd57d73da0af03e87a4677441edeb1bd3b44a802f820a24ee17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.00858",
    "kind": "arxiv",
    "version": 4
  }
}