Pith Number

pith:XHPHM3UB

pith:2019:XHPHM3UBCFN4RWOKQOT654ZCPT

not attested not anchored not stored refs pending

On the Diversity of Software Package Popularity Metrics: An Empirical Study of npm

Ahmed Zerouali, Gregorio Robles, Jesus M. Gonzalez-Barahona, Tom Mens

arxiv:1901.04217 v1 · 2019-01-14 · cs.SE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XHPHM3UBCFN4RWOKQOT654ZCPT}

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	2026-05-17T23:52:38.622239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9de766e81115bc8d9ca83a7eef3227cc8ff570e329bedb264496f582983939d

Aliases

arxiv: 1901.04217 · arxiv_version: 1901.04217v1 · doi: 10.48550/arxiv.1901.04217 · pith_short_12: XHPHM3UBCFN4 · pith_short_16: XHPHM3UBCFN4RWOK · pith_short_8: XHPHM3UB

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/XHPHM3UBCFN4RWOKQOT654ZCPT \
  | 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: b9de766e81115bc8d9ca83a7eef3227cc8ff570e329bedb264496f582983939d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04509632034077d77a55a995ce37cadd28fba135237bf55eb8dc63384b81a634",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-01-14T10:07:16Z",
    "title_canon_sha256": "eb129a46935d23e7e9aa86bffd250e3dbbb6d60e754e65b9326ba3ef888027a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04217",
    "kind": "arxiv",
    "version": 1
  }
}