Pith Number

pith:ZAXLCT4R

pith:2012:ZAXLCT4RGMZA4HFUJKPBQLW77C

not attested not anchored not stored refs pending

World citation and collaboration networks: uncovering the role of geography in science

Kimmo Kaski, Raj Kumar Pan, Santo Fortunato

arxiv:1209.0781 v2 · 2012-09-04 · physics.soc-ph · cs.DL · cs.SI · 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{ZAXLCT4RGMZA4HFUJKPBQLW77C}

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	2026-05-18T03:38:23.167795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c82eb14f9133320e1cb44a9e182edff899c2078f53e6f6621e0d28451719ea59

Aliases

arxiv: 1209.0781 · arxiv_version: 1209.0781v2 · doi: 10.48550/arxiv.1209.0781 · pith_short_12: ZAXLCT4RGMZA · pith_short_16: ZAXLCT4RGMZA4HFU · pith_short_8: ZAXLCT4R

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/ZAXLCT4RGMZA4HFUJKPBQLW77C \
  | 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: c82eb14f9133320e1cb44a9e182edff899c2078f53e6f6621e0d28451719ea59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45d44cf686842ce3a424b1e0e48d3c0cbbc5b1b201df4f5da196c3aa3a33fa56",
    "cross_cats_sorted": [
      "cs.DL",
      "cs.SI",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2012-09-04T20:01:21Z",
    "title_canon_sha256": "985d631339ee4e40784c7d8922ef9ac84dfa8c59b51ee600a26c783b26b4f9ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0781",
    "kind": "arxiv",
    "version": 2
  }
}