Pith Number

pith:5QESUMV2

pith:2012:5QESUMV2QLU4G2DYFAHUQLVVGP

not attested not anchored not stored refs pending

Coefficient of performance under optimized figure of merit in minimally nonlinear irreversible refrigerator

A. Calvo Hern\'andez, J. M. M. Roco, K. Okuda, Y. Izumida

arxiv:1207.3390 v4 · 2012-07-14 · 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{5QESUMV2QLU4G2DYFAHUQLVVGP}

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	2026-05-18T01:56:23.722898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec092a32ba82e9c36878280f482eb533c62e81730c4280c04e863df8964e8abc

Aliases

arxiv: 1207.3390 · arxiv_version: 1207.3390v4 · doi: 10.48550/arxiv.1207.3390 · pith_short_12: 5QESUMV2QLU4 · pith_short_16: 5QESUMV2QLU4G2DY · pith_short_8: 5QESUMV2

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/5QESUMV2QLU4G2DYFAHUQLVVGP \
  | 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: ec092a32ba82e9c36878280f482eb533c62e81730c4280c04e863df8964e8abc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ed6cef18e73a8611c4dcaf99296a8b26755fb4e8a608e607e0fcbcbb0037f5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2012-07-14T04:47:08Z",
    "title_canon_sha256": "ae9a0254a14f5e2dfd10f77f213f38a7843110b886cd4a05f8d2e136e5bc9d9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3390",
    "kind": "arxiv",
    "version": 4
  }
}