Pith Number

pith:PULPRQAW

pith:2012:PULPRQAWIIL3HLLQL5DH5OULRY

not attested not anchored not stored refs pending

How Can Journal Impact Factors be Normalized across Fields of Science? An Assessment in terms of Percentile Ranks and Fractional Counts

Loet Leydesdorff, Lutz Bornmann, Ping Zhou

arxiv:1205.0668 v2 · 2012-05-03 · 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{PULPRQAWIIL3HLLQL5DH5OULRY}

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	2026-05-18T03:53:19.659893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d16f8c0164217b3ad705f467eba8b8e12b88f2889e0323330bff0da5a4e5b67

Aliases

arxiv: 1205.0668 · arxiv_version: 1205.0668v2 · doi: 10.48550/arxiv.1205.0668 · pith_short_12: PULPRQAWIIL3 · pith_short_16: PULPRQAWIIL3HLLQ · pith_short_8: PULPRQAW

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/PULPRQAWIIL3HLLQL5DH5OULRY \
  | 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: 7d16f8c0164217b3ad705f467eba8b8e12b88f2889e0323330bff0da5a4e5b67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc52fe6c55c2335fa81f246bbe6cd2733195f5b1cca18da27d2672246d5aa2bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2012-05-03T10:12:57Z",
    "title_canon_sha256": "c213bb1699e3289d075c487d60e55a0d2724b65ca7fbb46862c85451da5f7ee4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0668",
    "kind": "arxiv",
    "version": 2
  }
}