Pith Number

pith:N5TYWHY6

pith:2014:N5TYWHY6J6DQMX7SZMAS3B3EU5

not attested not anchored not stored refs pending

Non-termination using Regular Languages

Hans Zantema, J\"org Endrullis

arxiv:1405.5662 v1 · 2014-05-22 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N5TYWHY6J6DQMX7SZMAS3B3EU5}

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	2026-05-18T02:51:15.980067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f678b1f1e4f87065ff2cb012d8764a77ebc79969b02f83da6222f7a56388337

Aliases

arxiv: 1405.5662 · arxiv_version: 1405.5662v1 · doi: 10.48550/arxiv.1405.5662 · pith_short_12: N5TYWHY6J6DQ · pith_short_16: N5TYWHY6J6DQMX7S · pith_short_8: N5TYWHY6

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/N5TYWHY6J6DQMX7SZMAS3B3EU5 \
  | 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: 6f678b1f1e4f87065ff2cb012d8764a77ebc79969b02f83da6222f7a56388337

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92e495af94c6052bbf4c793ff0fb8a1d4ec6e9d39f21b0155bacf6aa40fc8811",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-05-22T08:16:19Z",
    "title_canon_sha256": "c6161cf79e6d817524cd372225bad08c61f416adb39ab798220d698ae198bcec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.5662",
    "kind": "arxiv",
    "version": 1
  }
}