Pith Number

pith:RKPFNJLV

pith:2026:RKPFNJLVN6FCMIVTA6TADXU7C2

not attested not anchored not stored refs pending

Approaching Carnot Efficiency at Finite Power in an Experimentally Feasible Quantum Heat Engine

Atsushi Noguchi, Hiroyasu Tajima, Ken Funo, Shogo Toma

arxiv:2607.08713 v1 · 2026-07-09 · quant-ph · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RKPFNJLVN6FCMIVTA6TADXU7C2}

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	2026-07-10T01:19:58.295539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a9e56a5756f8a2622b307a601de9f168185c9323a94ff8ccaab069a68313168

Aliases

arxiv: 2607.08713 · arxiv_version: 2607.08713v1 · doi: 10.48550/arxiv.2607.08713 · pith_short_12: RKPFNJLVN6FC · pith_short_16: RKPFNJLVN6FCMIVT · pith_short_8: RKPFNJLV

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/RKPFNJLVN6FCMIVTA6TADXU7C2 \
  | 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: 8a9e56a5756f8a2622b307a601de9f168185c9323a94ff8ccaab069a68313168

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af46041a5ca7277c34c88de36d9c98b933baacf412e7939dd30276ecee6a0f10",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-09T17:24:27Z",
    "title_canon_sha256": "d5610ece2c8f56f6f1d5a6fc85a9e040f03438a6c3c82a088478a978042695d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08713",
    "kind": "arxiv",
    "version": 1
  }
}