Pith Number

pith:NVDGQFEN

pith:2015:NVDGQFENA7GYKP45DXYYBJP2BM

not attested not anchored not stored refs pending

Quantum Szilard engines with arbitrary spin

Shi-Dong Liang, Zekun Zhuang

arxiv:1502.00439 v1 · 2015-02-02 · 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{NVDGQFENA7GYKP45DXYYBJP2BM}

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	2026-05-18T02:28:05.992216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d4668148d07cd853f9d1df180a5fa0b2026c48bd206db6c0aa6b96e29003ded

Aliases

arxiv: 1502.00439 · arxiv_version: 1502.00439v1 · doi: 10.48550/arxiv.1502.00439 · pith_short_12: NVDGQFENA7GY · pith_short_16: NVDGQFENA7GYKP45 · pith_short_8: NVDGQFEN

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/NVDGQFENA7GYKP45DXYYBJP2BM \
  | 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: 6d4668148d07cd853f9d1df180a5fa0b2026c48bd206db6c0aa6b96e29003ded

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5782ae94676e4ff8fdc15f3fe07cc852c26163763bd52937198d8eacb0679483",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-02-02T11:15:22Z",
    "title_canon_sha256": "680fe011f87590002b1a63b59c23f4928be23867d0cc8375fae1d1ac93b1fe6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00439",
    "kind": "arxiv",
    "version": 1
  }
}