Pith Number

pith:L6QBSMQY

pith:2011:L6QBSMQYBK3FQVJ5DWOSUZF2B4

not attested not anchored not stored refs pending

On the number of Dejean words over alphabets of 5, 6, 7, 8, 9 and 10 letters

Michael Rao, Roman Kolpakov

arxiv:1105.3116 v1 · 2011-05-16 · 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{L6QBSMQYBK3FQVJ5DWOSUZF2B4}

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	2026-05-18T04:22:01.379380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fa01932180ab658553d1d9d2a64ba0f301c02f4fa5e6882fda89aa0da208882

Aliases

arxiv: 1105.3116 · arxiv_version: 1105.3116v1 · doi: 10.48550/arxiv.1105.3116 · pith_short_12: L6QBSMQYBK3F · pith_short_16: L6QBSMQYBK3FQVJ5 · pith_short_8: L6QBSMQY

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/L6QBSMQYBK3FQVJ5DWOSUZF2B4 \
  | 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: 5fa01932180ab658553d1d9d2a64ba0f301c02f4fa5e6882fda89aa0da208882

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25914f2a49eb86ff85f58ab3b13d9a45d514f04be9979d6860846976fd0b5f58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-05-16T15:06:26Z",
    "title_canon_sha256": "9cacfda88313a0a2dcd3325e87a9a0db3573bfa9b8d168850916797d1a74fcf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3116",
    "kind": "arxiv",
    "version": 1
  }
}