Pith Number

pith:PFYQQS4L

pith:2000:PFYQQS4LGE2NMK5PBGTDEDUJOE

not attested not anchored not stored refs pending

Incremental construction of minimal acyclic finite-state automata

Bruce Watson, Jan Daciuk, Richard Watson, Stoyan Mihov

arxiv:cs/0007009 v1 · 2000-07-06 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFYQQS4LGE2NMK5PBGTDEDUJOE}

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	2026-07-04T14:24:03.329993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7971084b8b3134d62baf09a6320e8971099b656bcb16fd3511a1b394c94d4ded

Aliases

arxiv: cs/0007009 · arxiv_version: cs/0007009v1 · doi: 10.48550/arxiv.cs/0007009 · pith_short_12: PFYQQS4LGE2N · pith_short_16: PFYQQS4LGE2NMK5P · pith_short_8: PFYQQS4L

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/PFYQQS4LGE2NMK5PBGTDEDUJOE \
  | 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: 7971084b8b3134d62baf09a6320e8971099b656bcb16fd3511a1b394c94d4ded

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae73a7490fd19696506fbaeda1aebf7687d4d213c3b024568c285050720262d9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CL",
    "submitted_at": "2000-07-06T14:15:26Z",
    "title_canon_sha256": "e8df8fb34a7e175759001572ec3ba93874e88e868623ec8b4f0ad38368d33f9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0007009",
    "kind": "arxiv",
    "version": 1
  }
}