Pith Number

pith:FOKED4LW

pith:2018:FOKED4LW5XGAYLQXLQC6J3WOEQ

not attested not anchored not stored refs pending

Testing Scientific Software: A Systematic Literature Review

James M. Bieman, Upulee Kanewala

arxiv:1804.01954 v1 · 2018-04-05 · 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{FOKED4LW5XGAYLQXLQC6J3WOEQ}

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	2026-05-18T00:19:09.443650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b9441f176edcc0c2e175c05e4eece2439aa0016dc5fa044de3f49f009c08228

Aliases

arxiv: 1804.01954 · arxiv_version: 1804.01954v1 · doi: 10.48550/arxiv.1804.01954 · pith_short_12: FOKED4LW5XGA · pith_short_16: FOKED4LW5XGAYLQX · pith_short_8: FOKED4LW

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/FOKED4LW5XGAYLQXLQC6J3WOEQ \
  | 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: 2b9441f176edcc0c2e175c05e4eece2439aa0016dc5fa044de3f49f009c08228

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0c5386768cf18139e315a3e564a9c5215afc880237b974dbedf78721e457f3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-04-05T17:04:20Z",
    "title_canon_sha256": "16c4e33376ba631bf33705c8674c8eb23d52d2f05dba7b86ecd892e69a213bd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01954",
    "kind": "arxiv",
    "version": 1
  }
}