Pith Number

pith:ELKQWK2Q

pith:2018:ELKQWK2QNGIKSFMZGDM34QY2WK

not attested not anchored not stored refs pending

Exploration of Reproducibility Issues in Scientometric Research Part 2: Conceptual Reproducibility

Andrea Scharnhorst, Jesper Wiborg Schneider, Ludo Waltman, Sybille Hinze, Theresa Velden

arxiv:1804.05026 v1 · 2018-04-13 · 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{ELKQWK2QNGIKSFMZGDM34QY2WK}

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	2026-05-18T00:18:32.464831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22d50b2b506990a9159930d9be431ab2b29de925285a84ed90353ca5a2eaed3f

Aliases

arxiv: 1804.05026 · arxiv_version: 1804.05026v1 · doi: 10.48550/arxiv.1804.05026 · pith_short_12: ELKQWK2QNGIK · pith_short_16: ELKQWK2QNGIKSFMZ · pith_short_8: ELKQWK2Q

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/ELKQWK2QNGIKSFMZGDM34QY2WK \
  | 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: 22d50b2b506990a9159930d9be431ab2b29de925285a84ed90353ca5a2eaed3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ffd12354f56b06f8a17af39078c23a33dfd098b1b2f1cc0d4cbe297eff53fb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-04-13T16:54:41Z",
    "title_canon_sha256": "a7d9f3c6ccfc1ed31d45a153303e424a89738a405fd0fca7c41106d4b7186e25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05026",
    "kind": "arxiv",
    "version": 1
  }
}