Pith Number

pith:VZZCBV76

pith:2025:VZZCBV762O43OR5BI2WMZ2K3KT

not attested not anchored not stored refs pending

Economy and Geography Shape the Collective Attention of Cities

Ge Guo, Jiangli Zhu, Junfan Yi, Junjie Yang, Ke-ke Shang, Liwen Zhang, Michael Small, Zixuan Jin

arxiv:2508.08907 v1 · 2025-08-12 · physics.soc-ph · physics.geo-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{VZZCBV762O43OR5BI2WMZ2K3KT}

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	2026-07-05T11:52:36.263137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae7220d7fed3b9b747a146accce95b54cb29c57df73afc125193975f058b27f3

Aliases

arxiv: 2508.08907 · arxiv_version: 2508.08907v1 · doi: 10.48550/arxiv.2508.08907 · pith_short_12: VZZCBV762O43 · pith_short_16: VZZCBV762O43OR5B · pith_short_8: VZZCBV76

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/VZZCBV762O43OR5BI2WMZ2K3KT \
  | 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: ae7220d7fed3b9b747a146accce95b54cb29c57df73afc125193975f058b27f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38d588d4e60b089ef0cce429dbb4c2895a55ba24d066857da5828a279a69cf50",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2025-08-12T12:52:57Z",
    "title_canon_sha256": "3995d5c1be4bd6564e8aec7fb5c355fd13602df59c23faba4179fb79954e62a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.08907",
    "kind": "arxiv",
    "version": 1
  }
}