Pith Number

pith:5EAINHJA

pith:2013:5EAINHJADCAKRIHABN27LZHTD6

not attested not anchored not stored refs pending

Shortest Repetition-Free Words Accepted by Automata

Hamoon Mousavi, Jeffrey Shallit

arxiv:1304.2959 v1 · 2013-04-10 · cs.FL · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5EAINHJADCAKRIHABN27LZHTD6}

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	2026-05-18T03:28:20.273853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e900869d201880a8a0e00b75f5e4f31f9721a99baae5788e1001a3e043aff1a1

Aliases

arxiv: 1304.2959 · arxiv_version: 1304.2959v1 · doi: 10.48550/arxiv.1304.2959 · pith_short_12: 5EAINHJADCAK · pith_short_16: 5EAINHJADCAKRIHA · pith_short_8: 5EAINHJA

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/5EAINHJADCAKRIHABN27LZHTD6 \
  | 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: e900869d201880a8a0e00b75f5e4f31f9721a99baae5788e1001a3e043aff1a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f913eed8eef7bc8bea46172cebdcd8781e3d73793359226672c03630bef0dc0",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2013-04-10T13:47:22Z",
    "title_canon_sha256": "1e57abdfcb13263510279716982206df0a4572f94a377eb8d2ff555921077b6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2959",
    "kind": "arxiv",
    "version": 1
  }
}