Pith Number

pith:2SNDN2KY

pith:2017:2SNDN2KYXFEPMTI7KFVPBGDZPV

not attested not anchored not stored refs pending

From Urban Segregation to Spatial Pattern Detection

Antoine Lucquiaud, Julien Randon-Furling, Madalina Olteanu

arxiv:1801.00336 v3 · 2017-12-31 · 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{2SNDN2KYXFEPMTI7KFVPBGDZPV}

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	2026-05-18T00:12:06.066983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d49a36e958b948f64d1f516af098797d41ba00d41a81486ccea38c9b58ce4f2a

Aliases

arxiv: 1801.00336 · arxiv_version: 1801.00336v3 · doi: 10.48550/arxiv.1801.00336 · pith_short_12: 2SNDN2KYXFEP · pith_short_16: 2SNDN2KYXFEPMTI7 · pith_short_8: 2SNDN2KY

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/2SNDN2KYXFEPMTI7KFVPBGDZPV \
  | 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: d49a36e958b948f64d1f516af098797d41ba00d41a81486ccea38c9b58ce4f2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8807f5eee00f18178c8c7a945b52258c29c6f4a2faa38f1e6aafa640e521bd41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2017-12-31T18:48:18Z",
    "title_canon_sha256": "15427427b04ef4de84fc511f59526c1531aee188b6f22db5bd93c0474ce9a41c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00336",
    "kind": "arxiv",
    "version": 3
  }
}