Pith Number

pith:F6FPFZRH

pith:2010:F6FPFZRHQWE3ZETT6YXHOLKJIW

not attested not anchored not stored refs pending

Quotient Complexity of Bifix-, Factor-, and Subword-Free Regular Languages

Baiyu Li, Galina Jir\'askov\'a, Janusz Brzozowski, Joshua Smith

arxiv:1006.4843 v3 · 2010-06-24 · 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{F6FPFZRHQWE3ZETT6YXHOLKJIW}

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	2026-05-18T04:22:11.461095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f8af2e6278589bc9273f62e772d4945a6f672a2151efeda150ec7c3738c568f

Aliases

arxiv: 1006.4843 · arxiv_version: 1006.4843v3 · doi: 10.48550/arxiv.1006.4843 · pith_short_12: F6FPFZRHQWE3 · pith_short_16: F6FPFZRHQWE3ZETT · pith_short_8: F6FPFZRH

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/F6FPFZRHQWE3ZETT6YXHOLKJIW \
  | 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: 2f8af2e6278589bc9273f62e772d4945a6f672a2151efeda150ec7c3738c568f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1d04e822ce429e3f2f2a7c37cd747dabaa0006c3cb7f3343e0b41aa6ebcf184",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2010-06-24T17:35:17Z",
    "title_canon_sha256": "53908e6dae4c858cebaaaf4cde76fac9cc75387de0e841fb5eba58b3eef23d48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.4843",
    "kind": "arxiv",
    "version": 3
  }
}