Pith Number

pith:L2J4RDTK

pith:2003:L2J4RDTKVAKXCNY3MD3MHIZN74

not attested not anchored not stored refs pending

On the Second Law of thermodynamics and the piston problem

A. Lesne, C. Gruber, S. Pache

arxiv:cond-mat/0312340 v1 · 2003-12-13 · 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{L2J4RDTKVAKXCNY3MD3MHIZN74}

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	2026-05-18T01:06:54.791714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e93c88e6aa81571371b60f6c3a32dff3d75a895cf2e4d3383eac105f2fe660b

Aliases

arxiv: cond-mat/0312340 · arxiv_version: cond-mat/0312340v1 · doi: 10.48550/arxiv.cond-mat/0312340 · pith_short_12: L2J4RDTKVAKX · pith_short_16: L2J4RDTKVAKXCNY3 · pith_short_8: L2J4RDTK

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/L2J4RDTKVAKXCNY3MD3MHIZN74 \
  | 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: 5e93c88e6aa81571371b60f6c3a32dff3d75a895cf2e4d3383eac105f2fe660b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe184d223e4d433c38dcde1f1d393abd94c53d0e12aa1ae29210944555c37660",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2003-12-13T10:09:50Z",
    "title_canon_sha256": "9af11a3a56be442f5a480432f5f8558accb8bb364a0afea688ed40112cfb09aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0312340",
    "kind": "arxiv",
    "version": 1
  }
}