Pith Number

pith:OKAHBNRG

pith:2018:OKAHBNRG75T5AUXYPO6RAZF6XL

not attested not anchored not stored refs pending

Decision problems for Clark-congruential languages

Makoto Kanazawa, Tobias Kapp\'e

arxiv:1805.04402 v2 · 2018-05-11 · cs.CL · 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{OKAHBNRG75T5AUXYPO6RAZF6XL}

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	2026-07-05T05:38:06.056485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

728070b626ff67d052f87bbd1064bebaef83af75dac2210e1c2fb845c6ed0222

Aliases

arxiv: 1805.04402 · arxiv_version: 1805.04402v2 · doi: 10.48550/arxiv.1805.04402 · pith_short_12: OKAHBNRG75T5 · pith_short_16: OKAHBNRG75T5AUXY · pith_short_8: OKAHBNRG

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/OKAHBNRG75T5AUXYPO6RAZF6XL \
  | 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: 728070b626ff67d052f87bbd1064bebaef83af75dac2210e1c2fb845c6ed0222

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fedc39aaec52bef3a95efd17da3128a8646387cfb5b8319ed532af36edc0dcfa",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-05-11T13:50:26Z",
    "title_canon_sha256": "6b37e8143aecd060017f843d83f408627ad8d3f33d4538402051cc214ea3a392"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04402",
    "kind": "arxiv",
    "version": 2
  }
}