Pith Number

pith:R27Q7KTZ

pith:2019:R27Q7KTZF7J6TNVL4V35O5OA5D

not attested not anchored not stored refs pending

Attaining Carnot Efficiency with Quantum and Nanoscale Heat Engines

Maciej Lewenstein, Manabendra Nath Bera, Mohit Lal Bera

arxiv:1911.07003 v3 · 2019-11-16 · quant-ph · cond-mat.mes-hall · cond-mat.stat-mech · math-ph · math.MP · physics.atom-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{R27Q7KTZF7J6TNVL4V35O5OA5D}

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	2026-07-05T02:14:40.729157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ebf0faa792fd3e9b6abe577d775c0e8cceb3946d2d38e0b2bb24460eda5d344

Aliases

arxiv: 1911.07003 · arxiv_version: 1911.07003v3 · doi: 10.48550/arxiv.1911.07003 · pith_short_12: R27Q7KTZF7J6 · pith_short_16: R27Q7KTZF7J6TNVL · pith_short_8: R27Q7KTZ

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/R27Q7KTZF7J6TNVL4V35O5OA5D \
  | 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: 8ebf0faa792fd3e9b6abe577d775c0e8cceb3946d2d38e0b2bb24460eda5d344

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86337c284228da0424b9c8d18e37225571963b4e47301cd2339afe1979a4f29f",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "cond-mat.stat-mech",
      "math-ph",
      "math.MP",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-11-16T09:49:02Z",
    "title_canon_sha256": "7098cb901d6eb9d047b4cd6a940242ddb93df65ab0e7e2dd0de624a125d1d0bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.07003",
    "kind": "arxiv",
    "version": 3
  }
}