Pith Number

pith:GSZPS7I7

pith:2014:GSZPS7I7HP3ZWUSDVNMOMD2E4Y

not attested not anchored not stored refs pending

The Evolution of Natural Cities from the Perspective of Location-Based Social Media

Bin Jiang, Yufan Miao

arxiv:1401.6756 v3 · 2014-01-27 · nlin.AO · 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{GSZPS7I7HP3ZWUSDVNMOMD2E4Y}

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	2026-05-18T02:05:24.526900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34b2f97d1f3bf79b5243ab58e60f44e62bca72a5cbcf9d401685ce2e0eb91be2

Aliases

arxiv: 1401.6756 · arxiv_version: 1401.6756v3 · doi: 10.48550/arxiv.1401.6756 · pith_short_12: GSZPS7I7HP3Z · pith_short_16: GSZPS7I7HP3ZWUSD · pith_short_8: GSZPS7I7

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/GSZPS7I7HP3ZWUSDVNMOMD2E4Y \
  | 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: 34b2f97d1f3bf79b5243ab58e60f44e62bca72a5cbcf9d401685ce2e0eb91be2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb6c7228058077824269b05631c0457b640a7c728f4ac47e6cf3ea75469d7475",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.AO",
    "submitted_at": "2014-01-27T07:25:54Z",
    "title_canon_sha256": "8faed0ca24c7037a2fb626488e1767412b7eb6808b45e1d5d5e5623caa495a5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6756",
    "kind": "arxiv",
    "version": 3
  }
}