Pith Number

pith:HBOSWP37

pith:2013:HBOSWP37A3F2VSOQSOUAHMV7BU

not attested not anchored not stored refs pending

Network communities within and across borders

Alessandro Chessa, Fabio Pammolli, Federica Cerina, Massimo Riccaboni

arxiv:1311.4211 v3 · 2013-11-17 · 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{HBOSWP37A3F2VSOQSOUAHMV7BU}

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	2026-05-18T02:54:55.974309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

385d2b3f7f06cbaac9d093a803b2bf0d2043db7cdbeeb7d8330afe49e57bff88

Aliases

arxiv: 1311.4211 · arxiv_version: 1311.4211v3 · doi: 10.48550/arxiv.1311.4211 · pith_short_12: HBOSWP37A3F2 · pith_short_16: HBOSWP37A3F2VSOQ · pith_short_8: HBOSWP37

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/HBOSWP37A3F2VSOQSOUAHMV7BU \
  | 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: 385d2b3f7f06cbaac9d093a803b2bf0d2043db7cdbeeb7d8330afe49e57bff88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "496648bbefba34e808947e420207383645941319e421a7c63c776aa2e6bc104d",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-11-17T20:21:23Z",
    "title_canon_sha256": "221ba588df450f97f0b3bf1212cb87bbefe96140fa1dc6073f79a22998190186"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4211",
    "kind": "arxiv",
    "version": 3
  }
}