Pith Number

pith:4BP47QMU

pith:2011:4BP47QMUTCGUGHVVVFGGUHXIF5

not attested not anchored not stored refs pending

Simple arithmetic versus intuitive understanding: The case of the impact factor

Loet Leydesdorff, Ronald Rousseau

arxiv:1102.2567 v2 · 2011-02-13 · 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{4BP47QMUTCGUGHVVVFGGUHXIF5}

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	2026-05-18T01:59:59.371194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e05fcfc194988d431eb5a94c6a1ee82f66fcabfb5bc1a0f8e4f35e081ae25bca

Aliases

arxiv: 1102.2567 · arxiv_version: 1102.2567v2 · doi: 10.48550/arxiv.1102.2567 · pith_short_12: 4BP47QMUTCGU · pith_short_16: 4BP47QMUTCGUGHVV · pith_short_8: 4BP47QMU

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/4BP47QMUTCGUGHVVVFGGUHXIF5 \
  | 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: e05fcfc194988d431eb5a94c6a1ee82f66fcabfb5bc1a0f8e4f35e081ae25bca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eb969e3d40cef8f1f4ad229674b9630675f587dab0d86720d100ba3019faf3a",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2011-02-13T07:32:39Z",
    "title_canon_sha256": "a5d2e5da3bdc800ff20723eab999c00838113b6ccd500a57d3ec97ca88c5c649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2567",
    "kind": "arxiv",
    "version": 2
  }
}