Pith Number

pith:XRN6DPLN

pith:2019:XRN6DPLNRNJJ6DNTQV6I7QFK5Z

not attested not anchored not stored refs pending

On the Relation Between Unit Testing and Code Quality

Lucas Gren, Vard Antinyan

arxiv:1904.04748 v1 · 2019-04-05 · 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{XRN6DPLNRNJJ6DNTQV6I7QFK5Z}

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	2026-05-17T23:48:58.257071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc5be1bd6d8b529f0db3857c8fc0aaee6ba8855714a67ace50a6bd5ea418f121

Aliases

arxiv: 1904.04748 · arxiv_version: 1904.04748v1 · doi: 10.48550/arxiv.1904.04748 · pith_short_12: XRN6DPLNRNJJ · pith_short_16: XRN6DPLNRNJJ6DNT · pith_short_8: XRN6DPLN

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/XRN6DPLNRNJJ6DNTQV6I7QFK5Z \
  | 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: bc5be1bd6d8b529f0db3857c8fc0aaee6ba8855714a67ace50a6bd5ea418f121

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8324023e504027c77ad8b9ec070acbb67cfb245fe6d4742def0d9891dc9d4a3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-04-05T18:42:53Z",
    "title_canon_sha256": "1f30dedb5e137cafe7ebc48cd36c1a74393115e71f6bf8aedf29495cac69d045"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04748",
    "kind": "arxiv",
    "version": 1
  }
}