Pith Number

pith:MNEUU6BC

pith:2012:MNEUU6BCBWWN5XJIDIDICUJWH2

not attested not anchored not stored refs pending

Research collaboration and the expanding science grid: Measuring globalization processes worldwide

Ludo Waltman, Nees Jan van Eck, Robert J. W. Tijssen

arxiv:1203.4194 v1 · 2012-03-19 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MNEUU6BCBWWN5XJIDIDICUJWH2}

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	2026-05-18T03:59:48.129978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63494a78220dacdedd281a068151363ea57f6694e6276df2416ae6255c32395c

Aliases

arxiv: 1203.4194 · arxiv_version: 1203.4194v1 · doi: 10.48550/arxiv.1203.4194 · pith_short_12: MNEUU6BCBWWN · pith_short_16: MNEUU6BCBWWN5XJI · pith_short_8: MNEUU6BC

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/MNEUU6BCBWWN5XJIDIDICUJWH2 \
  | 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: 63494a78220dacdedd281a068151363ea57f6694e6276df2416ae6255c32395c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "435fb00b3c6c753f5094c69ee6195d5b7244e7c173c2e225d7f17fa1a5efd83a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2012-03-19T18:23:29Z",
    "title_canon_sha256": "6a7303e78c4e69b3246b0b16292f581387c162dce51d82598fcced5151baff6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4194",
    "kind": "arxiv",
    "version": 1
  }
}