Pith Number

pith:AN67FOWD

pith:2009:AN67FOWDRDDJJIY55DR7BGCLJF

not attested not anchored not stored refs pending

Exponentially more concise quantum recognition of non-RMM regular languages

Amilcar Sernadas, Daowen Qiu, Lvzhou Li, Paulo Mateus

arxiv:0909.1428 v5 · 2009-09-08 · quant-ph · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AN67FOWDRDDJJIY55DR7BGCLJF}

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	2026-05-18T03:25:26.058951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

037df2bac388c694a31de8e3f0984b496b5f53d5e5c15da952a6ab5ef30fb60d

Aliases

arxiv: 0909.1428 · arxiv_version: 0909.1428v5 · doi: 10.48550/arxiv.0909.1428 · pith_short_12: AN67FOWDRDDJ · pith_short_16: AN67FOWDRDDJJIY5 · pith_short_8: AN67FOWD

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/AN67FOWDRDDJJIY55DR7BGCLJF \
  | 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: 037df2bac388c694a31de8e3f0984b496b5f53d5e5c15da952a6ab5ef30fb60d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "017211de7175ce229f88b4ae5cddf1b06633362ec6eeddc08d37c52264931ed4",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-09-08T08:57:26Z",
    "title_canon_sha256": "75c5034b00993a8dd8db601265ce1539100fc82f99390f5ea9f772585e9c422e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1428",
    "kind": "arxiv",
    "version": 5
  }
}