Pith Number

pith:DYZZYART

pith:2009:DYZZYARTTI3LJT7MSXPCOGWVHD

not attested not anchored not stored refs pending

Origin of the Scaling Law in Human Mobility: Hierarchical Organization of Traffic Systems

Binghong Wang, Qiang Hao, Tao Zhou, Xiaopu Han

arxiv:0908.1221 v2 · 2009-08-09 · physics.data-an · 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{DYZZYARTTI3LJT7MSXPCOGWVHD}

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	2026-05-18T02:12:36.268472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e339c02339a36b4cfec95de271ad538fda4484e8eddb217b84236da8f106156

Aliases

arxiv: 0908.1221 · arxiv_version: 0908.1221v2 · doi: 10.48550/arxiv.0908.1221 · pith_short_12: DYZZYARTTI3L · pith_short_16: DYZZYARTTI3LJT7M · pith_short_8: DYZZYART

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/DYZZYARTTI3LJT7MSXPCOGWVHD \
  | 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: 1e339c02339a36b4cfec95de271ad538fda4484e8eddb217b84236da8f106156

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83b2b6fc4893b997f7b72bfa3b3799165f7d6370094bf85364c20c26f7a00d2a",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2009-08-09T10:25:27Z",
    "title_canon_sha256": "996056b7886c091c486c2456560370f450dc68bc1bdc71c65765fb9d51591370"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1221",
    "kind": "arxiv",
    "version": 2
  }
}