Pith Number

pith:QZ5SZAR4

pith:2010:QZ5SZAR4LA2V5INWFSBFHSUCNK

not attested not anchored not stored refs pending

Severe Language Effect in University Rankings: Particularly Germany and France are wronged in citation-based rankings

Anthony F.J. van Raan, Martijn S. Visser, Thed N. van Leeuwen

arxiv:1012.5199 v1 · 2010-12-23 · cs.DL · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZ5SZAR4LA2V5INWFSBFHSUCNK}

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	2026-05-18T04:32:35.614387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

867b2c823c58355ea1b62c8253ca826aada67a90a463bceb98d714977b9c7ab0

Aliases

arxiv: 1012.5199 · arxiv_version: 1012.5199v1 · doi: 10.48550/arxiv.1012.5199 · pith_short_12: QZ5SZAR4LA2V · pith_short_16: QZ5SZAR4LA2V5INW · pith_short_8: QZ5SZAR4

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/QZ5SZAR4LA2V5INWFSBFHSUCNK \
  | 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: 867b2c823c58355ea1b62c8253ca826aada67a90a463bceb98d714977b9c7ab0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35e0ebdd90548964601d28478a96cd6b882303cb20ddfa732316fd8f7a5e17d4",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2010-12-23T13:44:10Z",
    "title_canon_sha256": "82ba99935b08ec014bc495db6916381133d6ea9b04b4371e29101943492b1360"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.5199",
    "kind": "arxiv",
    "version": 1
  }
}