Pith Number

pith:327IKWQM

pith:2012:327IKWQMBYLE2NE5FMV5WJHTCH

not attested not anchored not stored refs pending

Gravity vs radiation model: on the importance of scale and heterogeneity in commuting flows

A. Johansson, A. P. Masucci, J. Serras, M. Batty

arxiv:1206.5735 v2 · 2012-06-25 · physics.soc-ph · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{327IKWQMBYLE2NE5FMV5WJHTCH}

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	2026-05-18T01:56:42.199451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

debe855a0c0e164d349d2b2bdb24f311e7d4171c2acdc58666b1af0a1ba71220

Aliases

arxiv: 1206.5735 · arxiv_version: 1206.5735v2 · doi: 10.48550/arxiv.1206.5735 · pith_short_12: 327IKWQMBYLE · pith_short_16: 327IKWQMBYLE2NE5 · pith_short_8: 327IKWQM

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/327IKWQMBYLE2NE5FMV5WJHTCH \
  | 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: debe855a0c0e164d349d2b2bdb24f311e7d4171c2acdc58666b1af0a1ba71220

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e70cbce7ef6dd3555179d1b397caca34b9bf9ae441ed960670c61609efcdc1d",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2012-06-25T16:55:33Z",
    "title_canon_sha256": "21c6e7913d7316a5719e8b1eb5638363d089c754526e6d46e3ec8b493acac7f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5735",
    "kind": "arxiv",
    "version": 2
  }
}