Pith Number

pith:QTLFCWJF

pith:2012:QTLFCWJFGFHW4GBG5BWEYXBHMU

not attested not anchored not stored refs pending

Coefficient of performance at maximum figure of merit and its bounds for low-dissipation Carnot-like refrigerators

A. Calvo Hern\'andez, J. M. M. Roco, Mingxing Li, Yang Wang, Z. C. Tu

arxiv:1205.2258 v2 · 2012-05-10 · 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{QTLFCWJFGFHW4GBG5BWEYXBHMU}

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	2026-05-18T03:50:10.518026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84d6515925314f6e1826e86c4c5c27651cbf40063f9b8ee186d7da191b383b0d

Aliases

arxiv: 1205.2258 · arxiv_version: 1205.2258v2 · doi: 10.48550/arxiv.1205.2258 · pith_short_12: QTLFCWJFGFHW · pith_short_16: QTLFCWJFGFHW4GBG · pith_short_8: QTLFCWJF

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/QTLFCWJFGFHW4GBG5BWEYXBHMU \
  | 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: 84d6515925314f6e1826e86c4c5c27651cbf40063f9b8ee186d7da191b383b0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0ab2bc684d599f75423f510b5727dcb6c0b5754afab07e692fdd14b49707351",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2012-05-10T13:31:25Z",
    "title_canon_sha256": "49e02fc9f45403092e5e99e367e2fbd62ec041baec43224e82892d8c006b2efc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2258",
    "kind": "arxiv",
    "version": 2
  }
}