Pith Number

pith:7RX3HHAI

pith:2009:7RX3HHAIN5LV6HGTI6T4TSA2BF

not attested not anchored not stored refs pending

Thermodynamic Analysis of Snowball Earth Hysteresis Experiment: Efficiency, Entropy Production, and Irreversibility

Frank Lunkeit, Klaus Fraedrich, Valerio Lucarini

arxiv:0905.3669 v2 · 2009-05-22 · physics.ao-ph · cond-mat.stat-mech · physics.comp-ph · physics.flu-dyn · physics.geo-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{7RX3HHAIN5LV6HGTI6T4TSA2BF}

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	2026-05-18T04:11:29.173472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc6fb39c086f575f1cd347a7c9c81a09536d156c2374288d39ede41246b02c67

Aliases

arxiv: 0905.3669 · arxiv_version: 0905.3669v2 · doi: 10.48550/arxiv.0905.3669 · pith_short_12: 7RX3HHAIN5LV · pith_short_16: 7RX3HHAIN5LV6HGT · pith_short_8: 7RX3HHAI

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/7RX3HHAIN5LV6HGTI6T4TSA2BF \
  | 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: fc6fb39c086f575f1cd347a7c9c81a09536d156c2374288d39ede41246b02c67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "430836826957ff12bae3002fd67401c440e8242227d3a940d236ba6229a8c843",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "physics.comp-ph",
      "physics.flu-dyn",
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2009-05-22T12:19:00Z",
    "title_canon_sha256": "c3f70f694b01d9b3d0bf8746753fc6547e26007d56b840761112d6b55a2c4b52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3669",
    "kind": "arxiv",
    "version": 2
  }
}