Pith Number

pith:TILMAWWN

pith:2018:TILMAWWNJCBVDHRIDHKZHDMSVM

not attested not anchored not stored refs pending

Cobham's Theorem and Automaticity

Jeffrey Shallit, Lucas Mol, Manon Stipulanti, Narad Rampersad

arxiv:1809.00679 v2 · 2018-09-03 · cs.FL · math.CO · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TILMAWWNJCBVDHRIDHKZHDMSVM}

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	2026-05-17T23:58:18.992650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a16c05acd4883519e2819d5938d92ab2a9366be3be3b9e2ecf24af33dec4077

Aliases

arxiv: 1809.00679 · arxiv_version: 1809.00679v2 · doi: 10.48550/arxiv.1809.00679 · pith_short_12: TILMAWWNJCBV · pith_short_16: TILMAWWNJCBVDHRI · pith_short_8: TILMAWWN

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/TILMAWWNJCBVDHRIDHKZHDMSVM \
  | 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: 9a16c05acd4883519e2819d5938d92ab2a9366be3be3b9e2ecf24af33dec4077

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8f3fa3ceaabe6ec300ae7e5d76dc047c008c3d4ac544b69fe71b93b635a976f",
    "cross_cats_sorted": [
      "math.CO",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2018-09-03T18:09:37Z",
    "title_canon_sha256": "1e5f02cf53cb2a960e582eb2c3a3e8ef122cc669b79c688252b8dc3e65c6f2bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00679",
    "kind": "arxiv",
    "version": 2
  }
}