Pith Number

pith:EZ2QFECC

pith:2011:EZ2QFECCII36T66O4YNJ24US7Y

not attested not anchored not stored refs pending

A recursive field-normalized bibliometric performance indicator: An application to the field of library and information science

Erjia Yan, Ludo Waltman, Nees Jan van Eck

arxiv:1105.3212 v1 · 2011-05-16 · 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{EZ2QFECCII36T66O4YNJ24US7Y}

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	2026-05-18T04:22:00.379688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26750290424237e9fbcee61a9d7292fe0f9b700d25d9778d3ccefa7567f4c343

Aliases

arxiv: 1105.3212 · arxiv_version: 1105.3212v1 · doi: 10.48550/arxiv.1105.3212 · pith_short_12: EZ2QFECCII36 · pith_short_16: EZ2QFECCII36T66O · pith_short_8: EZ2QFECC

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/EZ2QFECCII36T66O4YNJ24US7Y \
  | 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: 26750290424237e9fbcee61a9d7292fe0f9b700d25d9778d3ccefa7567f4c343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7a4e0b96e8409b5e4f51925544b17340a111a8f8081e39a8eaf4c65e1b227fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2011-05-16T20:25:08Z",
    "title_canon_sha256": "ef3d77d5fbae9ff91d72892f98aa27bbc27ac0a5ac316a56412f5ce8876b9270"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3212",
    "kind": "arxiv",
    "version": 1
  }
}