Pith Number

pith:R7ALIBAJ

pith:2005:R7ALIBAJ6E7JEDDL6KCOPA4BJQ

not attested not anchored not stored refs pending

A driven two-dimensional granular gas with Coulomb friction

Annette Zippelius, Hans J\"urgen Herrmann, Olaf Herbst, Raffaele Cafiero, Stefan Luding

arxiv:cond-mat/0501223 v1 · 2005-01-11 · cond-mat.soft · 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{R7ALIBAJ6E7JEDDL6KCOPA4BJQ}

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	2026-05-18T01:39:57.018598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fc0b40409f13e920c6bf284e783814c2f907fb6aee3222c1b6a2e4db6ce645f

Aliases

arxiv: cond-mat/0501223 · arxiv_version: cond-mat/0501223v1 · doi: 10.48550/arxiv.cond-mat/0501223 · pith_short_12: R7ALIBAJ6E7J · pith_short_16: R7ALIBAJ6E7JEDDL · pith_short_8: R7ALIBAJ

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/R7ALIBAJ6E7JEDDL6KCOPA4BJQ \
  | 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: 8fc0b40409f13e920c6bf284e783814c2f907fb6aee3222c1b6a2e4db6ce645f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d12f0cb46901a1743e5721c60ea8b295758bc6472d3cf61df95562b4e501ff0d",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2005-01-11T01:23:41Z",
    "title_canon_sha256": "08a1ff2a0ab1a0cd00c4d9433462d8e73efb1c53ec798653fac0e8f5cbab75f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0501223",
    "kind": "arxiv",
    "version": 1
  }
}