Pith Number

pith:7NMYFDFL

pith:2015:7NMYFDFLNSKPRLLPNMBH3MXZMG

not attested not anchored not stored refs pending

Quality of Open Source Systems from Product Metrics Perspective

Ibrahim Abunadi, Mamdouh Alenezi

arxiv:1511.03194 v1 · 2015-11-10 · 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{7NMYFDFLNSKPRLLPNMBH3MXZMG}

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	2026-05-18T01:27:16.803515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb59828cab6c94f8ad6f6b027db2f961aa104c37eb81c22ba304209e75ef207a

Aliases

arxiv: 1511.03194 · arxiv_version: 1511.03194v1 · doi: 10.48550/arxiv.1511.03194 · pith_short_12: 7NMYFDFLNSKP · pith_short_16: 7NMYFDFLNSKPRLLP · pith_short_8: 7NMYFDFL

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/7NMYFDFLNSKPRLLPNMBH3MXZMG \
  | 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: fb59828cab6c94f8ad6f6b027db2f961aa104c37eb81c22ba304209e75ef207a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53ef8ceb41981f9056b6fd44854b856a63246614d8fb801e9578904c1de131f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2015-11-10T17:36:35Z",
    "title_canon_sha256": "9f6b0a4bfe8eecd9bf7216932ccb4255d67917f0344dd04cd32256ef14eca2fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.03194",
    "kind": "arxiv",
    "version": 1
  }
}