Pith Number

pith:FMS62MQJ

pith:2019:FMS62MQJ4SMISQIEM2MZR5QNQS

not attested not anchored not stored refs pending

The statistical physics of Cities

Marc Barthelemy

arxiv:1905.01953 v1 · 2019-05-06 · 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{FMS62MQJ4SMISQIEM2MZR5QNQS}

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	2026-05-17T23:46:56.931212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b25ed3209e498894104669998f60d84a5013b991802108eaab46a6aa327bfe2

Aliases

arxiv: 1905.01953 · arxiv_version: 1905.01953v1 · doi: 10.48550/arxiv.1905.01953 · pith_short_12: FMS62MQJ4SMI · pith_short_16: FMS62MQJ4SMISQIE · pith_short_8: FMS62MQJ

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/FMS62MQJ4SMISQIEM2MZR5QNQS \
  | 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: 2b25ed3209e498894104669998f60d84a5013b991802108eaab46a6aa327bfe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa37e0d263bcac058a3e34a59c5cb61448b669662c48699de7357debc02d67d2",
    "cross_cats_sorted": [
      "cond-mat.dis-nn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2019-05-06T12:22:26Z",
    "title_canon_sha256": "394c199e7943cc80bf2e96762e35c7aa82eaba5daab00579b9d2526a93c31567"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01953",
    "kind": "arxiv",
    "version": 1
  }
}