Pith Number

pith:5PZRWFWR

pith:2019:5PZRWFWR3ZEPY3MUGN2EGAAT73

not attested not anchored not stored refs pending

On Testing Data-Intensive Software Systems

Barbara Russo, Florian Auer, Michael Felderer

arxiv:1903.09413 v2 · 2019-03-22 · 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{5PZRWFWR3ZEPY3MUGN2EGAAT73}

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	2026-05-17T23:49:01.405914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebf31b16d1de48fc6d943374430013fedb796706000cfbbe0565f0c685dfe7d0

Aliases

arxiv: 1903.09413 · arxiv_version: 1903.09413v2 · doi: 10.48550/arxiv.1903.09413 · pith_short_12: 5PZRWFWR3ZEP · pith_short_16: 5PZRWFWR3ZEPY3MU · pith_short_8: 5PZRWFWR

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/5PZRWFWR3ZEPY3MUGN2EGAAT73 \
  | 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: ebf31b16d1de48fc6d943374430013fedb796706000cfbbe0565f0c685dfe7d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "302e35c60d2a848696590b2128d78587e90c47716cac3d8d248c0f74f1faec7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-03-22T09:16:15Z",
    "title_canon_sha256": "cb0613807c04dbc061e3376e158afef3eb7719310e193b01f494d03ca2561486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09413",
    "kind": "arxiv",
    "version": 2
  }
}