Pith Number

pith:3HC4UYRB

pith:2011:3HC4UYRB56QYUAXKZ7GRKF3LTT

not attested not anchored not stored refs pending

Urban road networks -- Spatial networks with universal geometric features? A case study on Germany's largest cities

Reik V. Donner, Sonic H.Y. Chan, Stefan L\"ammer

arxiv:1102.3584 v1 · 2011-02-17 · physics.data-an · cs.SI · physics.soc-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{3HC4UYRB56QYUAXKZ7GRKF3LTT}

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	2026-05-18T02:03:09.956260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9c5ca6221efa18a02eacfcd15176b9cca88293e5dede164031a8fd914fad459

Aliases

arxiv: 1102.3584 · arxiv_version: 1102.3584v1 · doi: 10.48550/arxiv.1102.3584 · pith_short_12: 3HC4UYRB56QY · pith_short_16: 3HC4UYRB56QYUAXK · pith_short_8: 3HC4UYRB

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/3HC4UYRB56QYUAXKZ7GRKF3LTT \
  | 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: d9c5ca6221efa18a02eacfcd15176b9cca88293e5dede164031a8fd914fad459

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1855eae67982a621a5be97784a250506151e7a7aac7b38bc7bf2b1062dadc2c",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2011-02-17T13:46:18Z",
    "title_canon_sha256": "814e0e4ad2f5e982f59880d063a5ad21e78c8dafa93219523c408258b058099d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3584",
    "kind": "arxiv",
    "version": 1
  }
}