Pith Number

pith:O74GFBWA

pith:2015:O74GFBWAVJ7SI6J3GOREHA2IUG

not attested not anchored not stored refs pending

On the problem of boundaries and scaling for urban street networks

A. Paolo Masucci, Elsa Arcaute, Erez Hatna, Kiril Stanilov, Michael Batty

arxiv:1504.07380 v3 · 2015-04-28 · physics.soc-ph · nlin.AO · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O74GFBWAVJ7SI6J3GOREHA2IUG}

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	2026-05-18T01:29:13.305100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77f86286c0aa7f24793b33a2438348a19163a688379164bdf08da09dfc7935e4

Aliases

arxiv: 1504.07380 · arxiv_version: 1504.07380v3 · doi: 10.48550/arxiv.1504.07380 · pith_short_12: O74GFBWAVJ7S · pith_short_16: O74GFBWAVJ7SI6J3 · pith_short_8: O74GFBWA

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/O74GFBWAVJ7SI6J3GOREHA2IUG \
  | 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: 77f86286c0aa7f24793b33a2438348a19163a688379164bdf08da09dfc7935e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "257a7e1b3b28e37aa1f93169ab9ed3f5c4450673fee1d78cac0c2ded5e82af18",
    "cross_cats_sorted": [
      "nlin.AO",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-04-28T08:48:15Z",
    "title_canon_sha256": "29a559fb29d6e0f952b4d2b6ad49ea0e4e4e16761cbb2ebd158ea2b2762b4f11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07380",
    "kind": "arxiv",
    "version": 3
  }
}