Pith Number

pith:FPFIDX4U

pith:2014:FPFIDX4U57THKSZP3DV2K7OKID

not attested not anchored not stored refs pending

Coefficient of performance under maximum $\chi$ criterion in a two-level atomic system as a refrigerator

Jianhui Wang, Jizhou He, Rui Wang, Yongli Ma, Yuan Yuan

arxiv:1408.4917 v2 · 2014-08-21 · 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{FPFIDX4U57THKSZP3DV2K7OKID}

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	2026-05-18T02:32:22.013699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bca81df94efe6754b2fd8eba57dca40efefb975d4511f0171a5eb3eeceb00a9

Aliases

arxiv: 1408.4917 · arxiv_version: 1408.4917v2 · doi: 10.48550/arxiv.1408.4917 · pith_short_12: FPFIDX4U57TH · pith_short_16: FPFIDX4U57THKSZP · pith_short_8: FPFIDX4U

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/FPFIDX4U57THKSZP3DV2K7OKID \
  | 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: 2bca81df94efe6754b2fd8eba57dca40efefb975d4511f0171a5eb3eeceb00a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27bdc36c9e88c6a28e9aaaf1d7dc5c2ee53ab5b2483266d65826e0f8706e4e78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2014-08-21T08:44:25Z",
    "title_canon_sha256": "710675df858e8cb9e8fca2b799732044e7077389f7ffffba621c28e7bc907487"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4917",
    "kind": "arxiv",
    "version": 2
  }
}