Pith Number

pith:JYEIGRWN

pith:2010:JYEIGRWNAOKFPREYNKAFKE27ID

not attested not anchored not stored refs pending

Measuring Urban Sprawl Based on Massive Street Nodes and the Novel Concept of Natural Cities

Bin Jiang, Tao Jia

arxiv:1010.0541 v2 · 2010-10-04 · physics.data-an · 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{JYEIGRWNAOKFPREYNKAFKE27ID}

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	2026-05-18T04:33:59.458877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e088346cd039457c4986a8055135f40e0cd82702c67fe20f970265664be3489

Aliases

arxiv: 1010.0541 · arxiv_version: 1010.0541v2 · doi: 10.48550/arxiv.1010.0541 · pith_short_12: JYEIGRWNAOKF · pith_short_16: JYEIGRWNAOKFPREY · pith_short_8: JYEIGRWN

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/JYEIGRWNAOKFPREYNKAFKE27ID \
  | 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: 4e088346cd039457c4986a8055135f40e0cd82702c67fe20f970265664be3489

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d9dd4ab6b211a007dd5903e3cda971dbd6022b9cbc7d9638869de80066e79c1",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2010-10-04T11:14:26Z",
    "title_canon_sha256": "021d7ca772d3b1497034eb215db13e309c2f212ec3767c7221f847ad3c263bbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0541",
    "kind": "arxiv",
    "version": 2
  }
}