Pith Number

pith:J3XUWTPZ

pith:2014:J3XUWTPZNX3PZOUYNBWGYUC6FZ

not attested not anchored not stored refs pending

Quantum Pushdown Automata with a Garbage Tape

Masaki Nakanishi

arxiv:1402.3449 v4 · 2014-02-14 · quant-ph · cs.CC · 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{J3XUWTPZNX3PZOUYNBWGYUC6FZ}

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	2026-05-18T02:41:17.034724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4eef4b4df96df6fcba98686c6c505e2e44edccd5d33dbc5f4e4df28035dcaff7

Aliases

arxiv: 1402.3449 · arxiv_version: 1402.3449v4 · doi: 10.48550/arxiv.1402.3449 · pith_short_12: J3XUWTPZNX3P · pith_short_16: J3XUWTPZNX3PZOUY · pith_short_8: J3XUWTPZ

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/J3XUWTPZNX3PZOUYNBWGYUC6FZ \
  | 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: 4eef4b4df96df6fcba98686c6c505e2e44edccd5d33dbc5f4e4df28035dcaff7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b27aad1727499e86075697f7d66574fcae1d2144ad4adbef16fc76cbe8b917b6",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-02-14T12:31:15Z",
    "title_canon_sha256": "6b9d9c34b6492066ebe611e137b94a86f46cfc7cdb37ea7a8387b6df47f5ec08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3449",
    "kind": "arxiv",
    "version": 4
  }
}