Pith Number

pith:OWTT7SL4

pith:2013:OWTT7SL475J656TWX3NDBOETVA

not attested not anchored not stored refs pending

Most Complex Regular Right-Ideal Languages

Gareth Davies, Janusz Brzozowski

arxiv:1311.4448 v1 · 2013-11-18 · 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{OWTT7SL475J656TWX3NDBOETVA}

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	2026-05-18T03:06:52.642948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75a73fc97cff53eefa76beda30b893a8124380977e0ebff733470c32cfc9c6e9

Aliases

arxiv: 1311.4448 · arxiv_version: 1311.4448v1 · doi: 10.48550/arxiv.1311.4448 · pith_short_12: OWTT7SL475J6 · pith_short_16: OWTT7SL475J656TW · pith_short_8: OWTT7SL4

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/OWTT7SL475J656TWX3NDBOETVA \
  | 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: 75a73fc97cff53eefa76beda30b893a8124380977e0ebff733470c32cfc9c6e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "659c5a974c857fa972d3df00254e311742415ae3bc80aa2f32ee2bba94c10447",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2013-11-18T16:49:41Z",
    "title_canon_sha256": "d9ccc8b6d04669f8e43bad015d1071e0713892e34bd8134fc9ef621799cd90ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4448",
    "kind": "arxiv",
    "version": 1
  }
}