Pith Number

pith:CTORMGV7

pith:2017:CTORMGV7WU2OQLM722X7DBJLPC

not attested not anchored not stored refs pending

Measuring the Complexity of Urban Form and Design

Geoff Boeing

arxiv:1705.01986 v4 · 2017-04-26 · 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{CTORMGV7WU2OQLM722X7DBJLPC}

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	2026-05-18T00:04:08.377012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14dd161abfb534e82d9fd6aff1852b78b4ad8246b4acb9b75c074c45af66333d

Aliases

arxiv: 1705.01986 · arxiv_version: 1705.01986v4 · doi: 10.48550/arxiv.1705.01986 · pith_short_12: CTORMGV7WU2O · pith_short_16: CTORMGV7WU2OQLM7 · pith_short_8: CTORMGV7

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/CTORMGV7WU2OQLM722X7DBJLPC \
  | 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: 14dd161abfb534e82d9fd6aff1852b78b4ad8246b4acb9b75c074c45af66333d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10dd5918e1fd30250eebaf5279e478ee24a23651a1fbf76b9997f0829cb02ebb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2017-04-26T18:03:44Z",
    "title_canon_sha256": "ab18dab03369275c70a21e27db03e8f141c2e25fb5295eb051001950e9f516d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01986",
    "kind": "arxiv",
    "version": 4
  }
}