Pith Number

pith:3XVM3LY4

pith:2015:3XVM3LY46A77GOHLK44CPPEVZE

not attested not anchored not stored refs pending

An Empirical Study on the Procedure to Derive Software Quality Estimation Models

Danny Ho, Jie Xu, Luiz Fernando Capretz

arxiv:1507.06925 v1 · 2015-07-24 · 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{3XVM3LY46A77GOHLK44CPPEVZE}

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	2026-05-18T01:36:21.658492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddeacdaf1cf03ff338eb573827bc95c9233cbcdfa58eb0f90afa323b7dec936d

Aliases

arxiv: 1507.06925 · arxiv_version: 1507.06925v1 · doi: 10.48550/arxiv.1507.06925 · pith_short_12: 3XVM3LY46A77 · pith_short_16: 3XVM3LY46A77GOHL · pith_short_8: 3XVM3LY4

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/3XVM3LY46A77GOHLK44CPPEVZE \
  | 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: ddeacdaf1cf03ff338eb573827bc95c9233cbcdfa58eb0f90afa323b7dec936d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afb2d683a33fda72f03b53bc33bfbd4155b4aa963e48b0c881c926ceb014a988",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2015-07-24T17:32:44Z",
    "title_canon_sha256": "613ca3f0d5319de2271e7d8aaa91c34a8c358211de2f099ae509b69b27c37e02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06925",
    "kind": "arxiv",
    "version": 1
  }
}