Pith Number

pith:72KCCYYT

pith:2019:72KCCYYTZNBM5EBTDE5JH4KYDX

not attested not anchored not stored refs pending

Variational principles and thermodynamics

P\'eter V\'an, R\'obert Kov\'acs

arxiv:1908.02679 v1 · 2019-08-07 · 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{72KCCYYTZNBM5EBTDE5JH4KYDX}

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	2026-07-05T01:31:49.284194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe94216313cb42ce9033193a93f1581de6460b74f3660dae6bf85231c1297ec6

Aliases

arxiv: 1908.02679 · arxiv_version: 1908.02679v1 · doi: 10.48550/arxiv.1908.02679 · pith_short_12: 72KCCYYTZNBM · pith_short_16: 72KCCYYTZNBM5EBT · pith_short_8: 72KCCYYT

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/72KCCYYTZNBM5EBTDE5JH4KYDX \
  | 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: fe94216313cb42ce9033193a93f1581de6460b74f3660dae6bf85231c1297ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2470b38c5dfdb0b1a9e0727d20182f7cdfdd85b0fde01147ece45db91f180498",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2019-08-07T15:23:06Z",
    "title_canon_sha256": "ea7af8bb2229832dbbc2bb5dd06a70aff97018da8f4650bdf76d8f951aa76b93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02679",
    "kind": "arxiv",
    "version": 1
  }
}