Pith Number

pith:VMJCVAJK

pith:2021:VMJCVAJKJ2Y647LDQX2QQH3F7Y

not attested not anchored not stored refs pending

An Exploration of npm Package Co-Usage Examples from Stack Overflow: A Case Study

Dong Wang, Kenichi Matsumoto, Raula Gaikovina Kula, Syful Islam, Takashi Ishio

arxiv:2109.08848 v2 · 2021-09-18 · 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{VMJCVAJKJ2Y647LDQX2QQH3F7Y}

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	2026-07-05T04:00:18.126303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab122a812a4eb1ee7d6385f5081f65fe12933ddc6c4e6cdff364aa037dfb4fdd

Aliases

arxiv: 2109.08848 · arxiv_version: 2109.08848v2 · doi: 10.48550/arxiv.2109.08848 · pith_short_12: VMJCVAJKJ2Y6 · pith_short_16: VMJCVAJKJ2Y647LD · pith_short_8: VMJCVAJK

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/VMJCVAJKJ2Y647LDQX2QQH3F7Y \
  | 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: ab122a812a4eb1ee7d6385f5081f65fe12933ddc6c4e6cdff364aa037dfb4fdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd170ac0f18356a6e5b497bd7f98098453450e110539c04dca29758ff601ac33",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-09-18T06:16:36Z",
    "title_canon_sha256": "cd62f366260297e161c8569ce53b586f0dcc06f132d77d112a5a03695ef901ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.08848",
    "kind": "arxiv",
    "version": 2
  }
}