Pith Number

pith:EEZALIHQ

pith:2018:EEZALIHQVYO5KBMN2TOEYPY5CO

not attested not anchored not stored refs pending

Challenges of measuring the impact of software: an examination of the lme4 R package

Erjia Yan, Kai Li, Pei-Ying Chen

arxiv:1811.11270 v1 · 2018-11-27 · 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{EEZALIHQVYO5KBMN2TOEYPY5CO}

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.

Cited by

1 paper in Pith

The Reciprocal Impact of Science and Software: A Cross-Corpus Analysis of How Research Shapes Software and Software Enables Research

Receipt and verification

First computed	2026-05-17T23:52:26.958810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

213205a0f0ae1dd5058dd4dc4c3f1d1389262a8926757dbe5e3b05945c4f9095

Aliases

arxiv: 1811.11270 · arxiv_version: 1811.11270v1 · doi: 10.48550/arxiv.1811.11270 · pith_short_12: EEZALIHQVYO5 · pith_short_16: EEZALIHQVYO5KBMN · pith_short_8: EEZALIHQ

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/EEZALIHQVYO5KBMN2TOEYPY5CO \
  | 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: 213205a0f0ae1dd5058dd4dc4c3f1d1389262a8926757dbe5e3b05945c4f9095

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70499c3cdc3bd887674e66813fcf21e483baec34c71a76743fcae7b5eda9a7f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-11-27T21:33:44Z",
    "title_canon_sha256": "be89a8c10db772072f1fac6e45f616e03a9be7f2c4e4693b1333ac0ecdff5e84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.11270",
    "kind": "arxiv",
    "version": 1
  }
}