Pith Number

pith:WUNZ4Q64

pith:2018:WUNZ4Q64JXUWGLB4QDF2FDIWYW

not attested not anchored not stored refs pending

Breaking the borders: an investigation of cross-ecosystem software packages

Alexandre Decan, Eleni Constantinou, Tom Mens

arxiv:1812.04868 v2 · 2018-12-12 · 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{WUNZ4Q64JXUWGLB4QDF2FDIWYW}

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	2026-05-17T23:58:24.525223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b51b9e43dc4de9632c3c80cba28d16c5b056f4e732c54e5cc07d1616bac9f249

Aliases

arxiv: 1812.04868 · arxiv_version: 1812.04868v2 · doi: 10.48550/arxiv.1812.04868 · pith_short_12: WUNZ4Q64JXUW · pith_short_16: WUNZ4Q64JXUWGLB4 · pith_short_8: WUNZ4Q64

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/WUNZ4Q64JXUWGLB4QDF2FDIWYW \
  | 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: b51b9e43dc4de9632c3c80cba28d16c5b056f4e732c54e5cc07d1616bac9f249

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50d0bb7b0d3bc86c84f2106471b21dd43c3478abeffa39c90a23480835049091",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-12-12T09:48:52Z",
    "title_canon_sha256": "655d760f711274d65185376eb7af5be31bca4a0b306daa420e9f18fbd69e93b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04868",
    "kind": "arxiv",
    "version": 2
  }
}