Pith Number

pith:XHCU2SMF

pith:2014:XHCU2SMFMNDBM3RJHR2Y4PLVQY

not attested not anchored not stored refs pending

Mining Urban Performance: Scale-Independent Classification of Cities Based on Individual Economic Transactions

Bartosz Hawelka, Carlo Ratti, Izabela Sitko, Juan Murillo Arias, Remi Tachet des Combes, Sebastian Grauwin, Stanislav Sobolevsky

arxiv:1405.4301 v1 · 2014-05-16 · physics.soc-ph · cs.SI · q-fin.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XHCU2SMFMNDBM3RJHR2Y4PLVQY}

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	2026-05-18T02:51:41.212961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9c54d49856346166e293c758e3d758629038bbd8c53669d923638d3aa22a790

Aliases

arxiv: 1405.4301 · arxiv_version: 1405.4301v1 · doi: 10.48550/arxiv.1405.4301 · pith_short_12: XHCU2SMFMNDB · pith_short_16: XHCU2SMFMNDBM3RJ · pith_short_8: XHCU2SMF

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/XHCU2SMFMNDBM3RJHR2Y4PLVQY \
  | 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: b9c54d49856346166e293c758e3d758629038bbd8c53669d923638d3aa22a790

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b283dfdd1ce4c4cb1a3109838cf4ded8ab421972fd7f2e13d4552d11599a466f",
    "cross_cats_sorted": [
      "cs.SI",
      "q-fin.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2014-05-16T20:36:08Z",
    "title_canon_sha256": "bc23b791bac1e1c74b50e3ef91c7969dd6e2e994f83ffc96aceeaa8dcb8f31b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4301",
    "kind": "arxiv",
    "version": 1
  }
}