Pith Number

pith:EZ3CO5SS

pith:2017:EZ3CO5SSFRRZTBSTWBW6ZROLUE

not attested not anchored not stored refs pending

Scaling evidence of the homothetic nature of cities

Geoffrey Caruso, R\'emi Lemoy

arxiv:1704.06508 v1 · 2017-04-21 · physics.soc-ph · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZ3CO5SSFRRZTBSTWBW6ZROLUE}

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	2026-05-18T00:45:59.494158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26762776522c63998653b06decc5cba12591551ab6918eddf55e070db988ca66

Aliases

arxiv: 1704.06508 · arxiv_version: 1704.06508v1 · doi: 10.48550/arxiv.1704.06508 · pith_short_12: EZ3CO5SSFRRZ · pith_short_16: EZ3CO5SSFRRZTBST · pith_short_8: EZ3CO5SS

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/EZ3CO5SSFRRZTBSTWBW6ZROLUE \
  | 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: 26762776522c63998653b06decc5cba12591551ab6918eddf55e070db988ca66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d0632fc425a4f5ceffb11bf26ab518f1565f4c66ab6ef0f581fdd8557c7f72a",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2017-04-21T12:41:30Z",
    "title_canon_sha256": "e21e70acdbe1d879a0079a4d2f9820381bbd4df3db3e66d5481dab8b329fa5fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06508",
    "kind": "arxiv",
    "version": 1
  }
}