Pith Number

pith:OFKP5FRH

pith:2011:OFKP5FRHVWCES2G6GYNHF2ZLTH

not attested not anchored not stored refs pending

The scaling of human mobility by taxis is exponential

Ke Xu, Tongyu Zhu, Weifeng Lv, Xiao Liang, Xudong Zheng

arxiv:1109.5460 v1 · 2011-09-26 · physics.soc-ph · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFKP5FRHVWCES2G6GYNHF2ZLTH}

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	2026-05-18T02:39:24.407928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7154fe9627ad844968de361a72eb2b99c328a6df1d57b25677cb8db439dd9fe1

Aliases

arxiv: 1109.5460 · arxiv_version: 1109.5460v1 · doi: 10.48550/arxiv.1109.5460 · pith_short_12: OFKP5FRHVWCE · pith_short_16: OFKP5FRHVWCES2G6 · pith_short_8: OFKP5FRH

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/OFKP5FRHVWCES2G6GYNHF2ZLTH \
  | 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: 7154fe9627ad844968de361a72eb2b99c328a6df1d57b25677cb8db439dd9fe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1435317ee159d63beb17ce0b097697cf1b774424c764e58d8ac577ebd2630c8",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2011-09-26T07:20:32Z",
    "title_canon_sha256": "e20b2737a120f08ec0541cb552ede6f93ab2ff2834dc3772f441f2a0280969a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5460",
    "kind": "arxiv",
    "version": 1
  }
}