Pith Number

pith:UAJ2X3HH

pith:2011:UAJ2X3HH7XSO37UQCG6HNEATHX

not attested not anchored not stored refs pending

Restarting Automata with Auxiliary Symbols and Small Lookahead

Natalie Schluter

arxiv:1101.1640 v3 · 2011-01-09 · 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{UAJ2X3HH7XSO37UQCG6HNEATHX}

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	2026-05-18T00:11:00.892347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a013abece7fde4edfe9011bc7690133dc82fb3ac19ef014c65a8db4d64277259

Aliases

arxiv: 1101.1640 · arxiv_version: 1101.1640v3 · doi: 10.48550/arxiv.1101.1640 · pith_short_12: UAJ2X3HH7XSO · pith_short_16: UAJ2X3HH7XSO37UQ · pith_short_8: UAJ2X3HH

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/UAJ2X3HH7XSO37UQCG6HNEATHX \
  | 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: a013abece7fde4edfe9011bc7690133dc82fb3ac19ef014c65a8db4d64277259

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fbc8d5ef4855183464b0a86c7b9b1c6605a229b4885ef93037fa2ee0452cbba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-01-09T14:42:09Z",
    "title_canon_sha256": "ad372c5bdac545927bf2d2c89f711ca9004f80e2ad1fea882477b72bd0cddb27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.1640",
    "kind": "arxiv",
    "version": 3
  }
}