Pith Number

pith:37IUNLN2

pith:2007:37IUNLN2AI4YTACRZDTU4FKTQJ

not attested not anchored not stored refs pending

Has the second law of thermodynamics really been violated ?

Leonardo Chiatti

arxiv:physics/0702150 v1 · 2007-02-17 · physics.gen-ph · physics.class-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{37IUNLN2AI4YTACRZDTU4FKTQJ}

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	2026-05-18T00:16:24.346652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfd146adba0239898051c8e74e155382663d18596b87f0cd3d4713239c142137

Aliases

arxiv: physics/0702150 · arxiv_version: physics/0702150v1 · doi: 10.48550/arxiv.physics/0702150 · pith_short_12: 37IUNLN2AI4Y · pith_short_16: 37IUNLN2AI4YTACR · pith_short_8: 37IUNLN2

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/37IUNLN2AI4YTACRZDTU4FKTQJ \
  | 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: dfd146adba0239898051c8e74e155382663d18596b87f0cd3d4713239c142137

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dcd9e72e7deed38a24e51295c3e5b0f4bb4eb93b23a856f7a816cbefcffc428",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2007-02-17T15:56:48Z",
    "title_canon_sha256": "c1a36a98f715d680be47747aa1d93adb6d479a6716179a86ae58af8c58f2e8c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0702150",
    "kind": "arxiv",
    "version": 1
  }
}