Pith Number

pith:WP7AJFRR

pith:2015:WP7AJFRR6EJ554XAMCI6FSSRR4

not attested not anchored not stored refs pending

Unperturbed Schelling segregation in two or three dimensions

Andy Lewis-Pye, George Barmpalias, Richard Elwes

arxiv:1504.03809 v4 · 2015-04-15 · cs.MA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WP7AJFRR6EJ554XAMCI6FSSRR4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:04:54.070356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3fe049631f113def2e06091e2ca518f2ef0a99f3f4dad0a3b9a3977ee3e6662

Aliases

arxiv: 1504.03809 · arxiv_version: 1504.03809v4 · doi: 10.48550/arxiv.1504.03809 · pith_short_12: WP7AJFRR6EJ5 · pith_short_16: WP7AJFRR6EJ554XA · pith_short_8: WP7AJFRR

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/WP7AJFRR6EJ554XAMCI6FSSRR4 \
  | 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: b3fe049631f113def2e06091e2ca518f2ef0a99f3f4dad0a3b9a3977ee3e6662

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e22479691c05478cc729f74030716aee85b927f4fc9d8329fdf81ac44d66b09a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MA",
    "submitted_at": "2015-04-15T07:54:35Z",
    "title_canon_sha256": "5a8028e24f738a60d832b7ee452a7adc84e293f3ce03114b03f8b03678c444a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03809",
    "kind": "arxiv",
    "version": 4
  }
}