Pith Number

pith:FQDCK3JX

pith:2002:FQDCK3JXBWL63HAV4AVUY5GFTY

not attested not anchored not stored refs pending

The entropy of 'strange' billiards inside n-simplexes

Ingo Hoffmann, Thomas Sch\"urmann

arxiv:nlin/0208048 v1 · 2002-08-30 · nlin.CD · cond-mat.stat-mech · math-ph · math.DS · math.MP · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FQDCK3JXBWL63HAV4AVUY5GFTY}

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	2026-05-18T01:11:22.032518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c06256d370d97ed9c15e02b4c74c59e3919ad6610c85d209da8042b135bb1bb

Aliases

arxiv: nlin/0208048 · arxiv_version: nlin/0208048v1 · doi: 10.48550/arxiv.nlin/0208048 · pith_short_12: FQDCK3JXBWL6 · pith_short_16: FQDCK3JXBWL63HAV · pith_short_8: FQDCK3JX

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/FQDCK3JXBWL63HAV4AVUY5GFTY \
  | 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: 2c06256d370d97ed9c15e02b4c74c59e3919ad6610c85d209da8042b135bb1bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ad75e55550c80d8ccdb2410d39f6815604190e93befa0d870aa364dbb63e207",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "math-ph",
      "math.DS",
      "math.MP",
      "physics.data-an"
    ],
    "license": "",
    "primary_cat": "nlin.CD",
    "submitted_at": "2002-08-30T09:25:29Z",
    "title_canon_sha256": "f84259583023c4f4416beb401fc1a1fc768668b347c9416e2147395c4381590c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0208048",
    "kind": "arxiv",
    "version": 1
  }
}