Pith Number

pith:ZIB36AOP

pith:2017:ZIB36AOPTLB5L2356SEIENNP4S

not attested not anchored not stored refs pending

Emptiness of zero automata is decidable

Edon Kelmendi (LaBRI), Hugo Gimbert (LaBRI), Mikolaj Boja\'nczyk

arxiv:1702.06858 v2 · 2017-02-22 · cs.FL · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZIB36AOPTLB5L2356SEIENNP4S}

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	2026-05-18T00:47:45.739579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca03bf01cf9ac3d5eb7df4888235afe488e58146853c837204b28ac29e4c218a

Aliases

arxiv: 1702.06858 · arxiv_version: 1702.06858v2 · doi: 10.48550/arxiv.1702.06858 · pith_short_12: ZIB36AOPTLB5 · pith_short_16: ZIB36AOPTLB5L235 · pith_short_8: ZIB36AOP

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/ZIB36AOPTLB5L2356SEIENNP4S \
  | 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: ca03bf01cf9ac3d5eb7df4888235afe488e58146853c837204b28ac29e4c218a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a304321e6c9b09573192e03955766706d6afb1520ec4ef03502903897ff01661",
    "cross_cats_sorted": [
      "cs.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-02-22T15:39:12Z",
    "title_canon_sha256": "f97b63e07e07974ce7594ea88d318196425df220c0ec8a47e932afd3145cfb28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06858",
    "kind": "arxiv",
    "version": 2
  }
}