Pith Number

pith:EZQIPUCA

pith:2014:EZQIPUCAKFS2FGUY4CXVIPLVE4

not attested not anchored not stored refs pending

Syntactic Complexity of Suffix-Free Languages

Janusz Brzozowski, Marek Szyku{\l}a

arxiv:1412.2281 v2 · 2014-12-06 · 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{EZQIPUCAKFS2FGUY4CXVIPLVE4}

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	2026-05-18T01:30:08.231810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

266087d0405165a29a98e0af543d752724916a6b70cc2acac41c88c6afa9ab1d

Aliases

arxiv: 1412.2281 · arxiv_version: 1412.2281v2 · doi: 10.48550/arxiv.1412.2281 · pith_short_12: EZQIPUCAKFS2 · pith_short_16: EZQIPUCAKFS2FGUY · pith_short_8: EZQIPUCA

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/EZQIPUCAKFS2FGUY4CXVIPLVE4 \
  | 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: 266087d0405165a29a98e0af543d752724916a6b70cc2acac41c88c6afa9ab1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f31d7c6a324f62d2d98d58ff626f37bf1d29c7488bfe74b78a90b323cb54485",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2014-12-06T20:58:05Z",
    "title_canon_sha256": "e09dde8553e0342711a2c1414d34d609753b8480289f3431e46844b00478baa0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2281",
    "kind": "arxiv",
    "version": 2
  }
}