Pith Number

pith:GX4C647O

pith:2013:GX4C647OECXGPLIDKUYQN4J3ZO

not attested not anchored not stored refs pending

Space-time correlations in urban sprawl

A. Hernando, A. Plastino, R. Hernando

arxiv:1306.3656 v1 · 2013-06-16 · physics.soc-ph · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GX4C647OECXGPLIDKUYQN4J3ZO}

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	2026-05-18T03:05:25.988162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35f82f73ee20ae67ad03553106f13bcbb25942709f2ca989ae4742f2820275ad

Aliases

arxiv: 1306.3656 · arxiv_version: 1306.3656v1 · doi: 10.48550/arxiv.1306.3656 · pith_short_12: GX4C647OECXG · pith_short_16: GX4C647OECXGPLID · pith_short_8: GX4C647O

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/GX4C647OECXGPLIDKUYQN4J3ZO \
  | 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: 35f82f73ee20ae67ad03553106f13bcbb25942709f2ca989ae4742f2820275ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "391358b01b44d6214e9a42180afbdcdbebfc1af8208b5d7a7819e0d986545934",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-06-16T12:58:34Z",
    "title_canon_sha256": "33453b6db8746206a4de6fcf4aa37aa41f006f2054b4d8a1be94afd541546974"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.3656",
    "kind": "arxiv",
    "version": 1
  }
}