Pith Number

pith:NDPTGOPT

pith:2011:NDPTGOPTM7VGABKCKSP67MKPTR

not attested not anchored not stored refs pending

Complexity in human transportation networks: A comparative analysis of worldwide air transportation and global cargo ship movements

Bernd Blasius, Dirk Brockmann, Grastivia O'Danleyman, Hanno Seebens, Jake Jungbin Lee

arxiv:1103.5451 v1 · 2011-03-28 · physics.soc-ph · cond-mat.stat-mech · 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{NDPTGOPTM7VGABKCKSP67MKPTR}

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	2026-05-18T04:25:38.034826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68df3339f367ea600542549fefb14f9c608c940cc9f000641f6ac30f9942f462

Aliases

arxiv: 1103.5451 · arxiv_version: 1103.5451v1 · doi: 10.48550/arxiv.1103.5451 · pith_short_12: NDPTGOPTM7VG · pith_short_16: NDPTGOPTM7VGABKC · pith_short_8: NDPTGOPT

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/NDPTGOPTM7VGABKCKSP67MKPTR \
  | 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: 68df3339f367ea600542549fefb14f9c608c940cc9f000641f6ac30f9942f462

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1374fffdfd3d81c6e4110d21a028db99516d1bab0a5df0cbf9e12907f135cd71",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2011-03-28T19:26:47Z",
    "title_canon_sha256": "7ed5839bd786195eb98ce085a5bf772f2feaebfd4f454dc94e2ba3297e2d6214"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5451",
    "kind": "arxiv",
    "version": 1
  }
}