Pith Number

pith:4I5YMKZA

pith:2014:4I5YMKZAO5ANNQ3UOA3ISI7YMB

not attested not anchored not stored refs pending

How congestion shapes cities: from mobility patterns to scaling

Marc Barthelemy, R\'emi Louf

arxiv:1401.8200 v4 · 2014-01-31 · physics.soc-ph · cond-mat.dis-nn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4I5YMKZAO5ANNQ3UOA3ISI7YMB}

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	2026-05-18T02:47:24.217831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e23b862b207740d6c37470368923f8604d87362876305d4b04a436e07192447d

Aliases

arxiv: 1401.8200 · arxiv_version: 1401.8200v4 · doi: 10.48550/arxiv.1401.8200 · pith_short_12: 4I5YMKZAO5AN · pith_short_16: 4I5YMKZAO5ANNQ3U · pith_short_8: 4I5YMKZA

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/4I5YMKZAO5ANNQ3UOA3ISI7YMB \
  | 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: e23b862b207740d6c37470368923f8604d87362876305d4b04a436e07192447d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f0ff8af88ecb7dbbb7785bb71c3b5b403cfd38ae1a857c6fbe3b0cc0218fa31",
    "cross_cats_sorted": [
      "cond-mat.dis-nn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2014-01-31T15:46:16Z",
    "title_canon_sha256": "7a93c7cdf17391b1bcfcdf7a5d9b6b0a400fa3018d0ec576979f264e7feaa92e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.8200",
    "kind": "arxiv",
    "version": 4
  }
}