Pith Number

pith:JP5FWCPV

pith:2016:JP5FWCPVKGYEWXBGKSPNNBP6FD

not attested not anchored not stored refs pending

Unattainability of Carnot efficiency in thermal motors: Coarse-graining and entropy production of Feynman-Smoluchowski ratchet

Kyogo Kawaguchi, Naoko Nakagawa, Yohei Nakayama

arxiv:1609.07073 v3 · 2016-09-22 · 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{JP5FWCPVKGYEWXBGKSPNNBP6FD}

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	2026-05-18T00:08:46.575843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bfa5b09f551b04b5c26549ed685fe28d6e6cf5cebc5ef4f44eaced21b3bb761

Aliases

arxiv: 1609.07073 · arxiv_version: 1609.07073v3 · doi: 10.48550/arxiv.1609.07073 · pith_short_12: JP5FWCPVKGYE · pith_short_16: JP5FWCPVKGYEWXBG · pith_short_8: JP5FWCPV

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/JP5FWCPVKGYEWXBGKSPNNBP6FD \
  | 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: 4bfa5b09f551b04b5c26549ed685fe28d6e6cf5cebc5ef4f44eaced21b3bb761

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b228d3b151eec7d800e77b863d8c4f25ac9637df12b0ba2a3797baa03484d947",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2016-09-22T17:13:50Z",
    "title_canon_sha256": "1fc0dc8828d0ab5954be28d694d8b633fc5ec39ba8d654a2a1c50e9176d133cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07073",
    "kind": "arxiv",
    "version": 3
  }
}