Pith Number

pith:PQ53WQBA

pith:2017:PQ53WQBAN3N2M63IQNGQYFQ6BN

not attested not anchored not stored refs pending

Van der Waal's gas equation for an adiabatic process and its Carnot engine efficiency

Aravind P. Babu, Kiran S. Kumar, M. Ponmurugan

arxiv:1802.01474 v1 · 2017-11-08 · 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{PQ53WQBAN3N2M63IQNGQYFQ6BN}

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	2026-05-18T00:24:25.780581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c3bbb40206edba67b68834d0c161e0b6c4fa667521de5afd286e863ab9daae8

Aliases

arxiv: 1802.01474 · arxiv_version: 1802.01474v1 · doi: 10.48550/arxiv.1802.01474 · pith_short_12: PQ53WQBAN3N2 · pith_short_16: PQ53WQBAN3N2M63I · pith_short_8: PQ53WQBA

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/PQ53WQBAN3N2M63IQNGQYFQ6BN \
  | 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: 7c3bbb40206edba67b68834d0c161e0b6c4fa667521de5afd286e863ab9daae8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7325ac20ecdda8e643ad098e99f259cb2e396de46cb35ca2e244215eac825f33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2017-11-08T09:53:33Z",
    "title_canon_sha256": "072f8855315b73d940fb431332bdde379b02c746aa3453abd63e5826be47e18e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01474",
    "kind": "arxiv",
    "version": 1
  }
}