Pith Number

pith:JGTW5D37

pith:2011:JGTW5D377NX76QKRZESZXSMQHB

not attested not anchored not stored refs pending

On the expressiveness of Parikh automata and related models

Alain Finkel, Micha\"el Cadilhac, Pierre McKenzie

arxiv:1101.1547 v4 · 2011-01-07 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JGTW5D377NX76QKRZESZXSMQHB}

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	2026-05-18T04:18:54.537092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49a76e8f7ffb6fff4151c9259bc99038749bb36d20c018ef39f5d4a43adaf1b2

Aliases

arxiv: 1101.1547 · arxiv_version: 1101.1547v4 · doi: 10.48550/arxiv.1101.1547 · pith_short_12: JGTW5D377NX7 · pith_short_16: JGTW5D377NX76QKR · pith_short_8: JGTW5D37

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/JGTW5D377NX76QKRZESZXSMQHB \
  | 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: 49a76e8f7ffb6fff4151c9259bc99038749bb36d20c018ef39f5d4a43adaf1b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8aad7b782d8fe75b75b88bc0bfe8c47a3e02ca844e22e4c2b3a9a944779c6c95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-01-07T22:43:16Z",
    "title_canon_sha256": "15e89ec93b176e8505a0d1c6710f3be3cf01ac77c8622d1fedc842a9ce8d9725"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.1547",
    "kind": "arxiv",
    "version": 4
  }
}