Pith Number

pith:SUY7HV2Q

pith:2011:SUY7HV2QTPDA5CLI7F73XK2TFU

not attested not anchored not stored refs pending

Some Languages Recognized by Two-Way Finite Automata with Quantum and Classical States

Daowen Qiu, Lvzhou Li, Shenggen Zheng

arxiv:1112.2844 v1 · 2011-12-13 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SUY7HV2QTPDA5CLI7F73XK2TFU}

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	2026-05-18T04:06:32.280740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9531f3d7509bc60e8968f97fbbab532d06f2608c44d9ae72a2812610a0a804bf

Aliases

arxiv: 1112.2844 · arxiv_version: 1112.2844v1 · doi: 10.48550/arxiv.1112.2844 · pith_short_12: SUY7HV2QTPDA · pith_short_16: SUY7HV2QTPDA5CLI · pith_short_8: SUY7HV2Q

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/SUY7HV2QTPDA5CLI7F73XK2TFU \
  | 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: 9531f3d7509bc60e8968f97fbbab532d06f2608c44d9ae72a2812610a0a804bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd43f63234a69df22f95ac2487bb1aed069dd1a3726ce3b72cfe06dd2965e37d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-12-13T10:14:41Z",
    "title_canon_sha256": "212b98123ea0fa811e16fe05c311b1694b5c9e906f6841770c5faf23a1c26b3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.2844",
    "kind": "arxiv",
    "version": 1
  }
}