Pith Number

pith:3ZOVU4OI

pith:2017:3ZOVU4OIILYQ5NY23A4242NZVU

not attested not anchored not stored refs pending

Parikh-reducing Church-Rosser representations for some classes of regular languages

Tobias Walter

arxiv:1703.10056 v1 · 2017-03-29 · 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{3ZOVU4OIILYQ5NY23A4242NZVU}

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	2026-05-18T00:47:38.724985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de5d5a71c842f10eb71ad839ae69b9ad1a40e6438d10867104fc57ea3c42c673

Aliases

arxiv: 1703.10056 · arxiv_version: 1703.10056v1 · doi: 10.48550/arxiv.1703.10056 · pith_short_12: 3ZOVU4OIILYQ · pith_short_16: 3ZOVU4OIILYQ5NY2 · pith_short_8: 3ZOVU4OI

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/3ZOVU4OIILYQ5NY23A4242NZVU \
  | 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: de5d5a71c842f10eb71ad839ae69b9ad1a40e6438d10867104fc57ea3c42c673

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6980e2c0307ba2b0a9ff7ad54959bb9fe41d2c4a755bf6c00d91935511ee2526",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-03-29T14:18:23Z",
    "title_canon_sha256": "8eb3ba232ba5510a916ac52c77ccee4402500d73cbc6a16695b573a5c98c58a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.10056",
    "kind": "arxiv",
    "version": 1
  }
}