Pith Number

pith:D6I6MO6M

pith:2017:D6I6MO6MUJT6RAJWOPB3XUARK7

not attested not anchored not stored refs pending

Towards a Theory of Complexity of Regular Languages

Janusz A. Brzozowski

arxiv:1702.05024 v1 · 2017-02-16 · 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{D6I6MO6MUJT6RAJWOPB3XUARK7}

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	2026-05-18T00:50:36.426670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f91e63bcca267e8813673c3bbd01157f52f677c76cba083fc7c3e00ae710bf7

Aliases

arxiv: 1702.05024 · arxiv_version: 1702.05024v1 · doi: 10.48550/arxiv.1702.05024 · pith_short_12: D6I6MO6MUJT6 · pith_short_16: D6I6MO6MUJT6RAJW · pith_short_8: D6I6MO6M

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/D6I6MO6MUJT6RAJWOPB3XUARK7 \
  | 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: 1f91e63bcca267e8813673c3bbd01157f52f677c76cba083fc7c3e00ae710bf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f30e9b52d5500ed76c785db332015088fa9a22168ec2ebfdf1a11341cfdedf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-02-16T15:55:37Z",
    "title_canon_sha256": "b8da7edf8272418e51856574e2b3b1053960cff13064c7c0e61491205ac94655"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05024",
    "kind": "arxiv",
    "version": 1
  }
}