Pith Number

pith:2MKGP45L

pith:2012:2MKGP45LGQSC7HOS24JQHJT4CQ

not attested not anchored not stored refs pending

The Leiden Ranking 2011/2012: Data collection, indicators, and interpretation

Anthony F.J. van Raan, Clara Calero-Medina, Ed C.M. Noyons, Joost Kosten, Ludo Waltman, Martijn S. Visser, Nees Jan van Eck, Paul Wouters, Robert J.W. Tijssen, Thed N. van Leeuwen

arxiv:1202.3941 v1 · 2012-02-17 · 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{2MKGP45LGQSC7HOS24JQHJT4CQ}

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	2026-05-18T04:02:02.429774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d31467f3ab34242f9dd2d71303a67c14293fbf3a545c296746f5d167183c343e

Aliases

arxiv: 1202.3941 · arxiv_version: 1202.3941v1 · doi: 10.48550/arxiv.1202.3941 · pith_short_12: 2MKGP45LGQSC · pith_short_16: 2MKGP45LGQSC7HOS · pith_short_8: 2MKGP45L

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/2MKGP45LGQSC7HOS24JQHJT4CQ \
  | 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: d31467f3ab34242f9dd2d71303a67c14293fbf3a545c296746f5d167183c343e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7c74cea29731de9df2e80edd573cfd003585c0b8e7f96655222a7c5e49e3640",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2012-02-17T15:56:15Z",
    "title_canon_sha256": "930a6900c49395a2b13271697eb5cbea826bb6b893e4d1855a9c904feb68ac6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3941",
    "kind": "arxiv",
    "version": 1
  }
}