Pith Number

pith:DZ7HOGP6

pith:2018:DZ7HOGP6WBRC7VJ34J3BID7ZFP

not attested not anchored not stored refs pending

Nonuniversality of heat engine efficiency at maximum power

Hyunggyu Park, Jaegon Um, Sang Hoon Lee

arxiv:1808.00219 v2 · 2018-08-01 · 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{DZ7HOGP6WBRC7VJ34J3BID7ZFP}

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	2026-05-17T23:59:05.961910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e7e7719feb0622fd53be276140ff92bfaef25f87057bf92ea6c181904286d56

Aliases

arxiv: 1808.00219 · arxiv_version: 1808.00219v2 · doi: 10.48550/arxiv.1808.00219 · pith_short_12: DZ7HOGP6WBRC · pith_short_16: DZ7HOGP6WBRC7VJ3 · pith_short_8: DZ7HOGP6

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/DZ7HOGP6WBRC7VJ34J3BID7ZFP \
  | 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: 1e7e7719feb0622fd53be276140ff92bfaef25f87057bf92ea6c181904286d56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2490d79baa47a52da3a4eaac79a9d949ac62f8231dceed005a495b9c4d8a8e1a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2018-08-01T08:23:51Z",
    "title_canon_sha256": "99d388c9e9d6b452d09d2d58eeff7e04e2d27c28747bc27bc880a48f2312ba5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00219",
    "kind": "arxiv",
    "version": 2
  }
}