Pith Number

pith:4RDFAJTG

pith:2026:4RDFAJTG7NBAASIUDGAED53CSS

not attested not anchored not stored refs pending

How Requirements Quality Makes (or Breaks) Traceability Link Recovery

Julian Frattini, Tobias Hey

arxiv:2606.11834 v1 · 2026-06-10 · 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{4RDFAJTG7NBAASIUDGAED53CSS}

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	2026-06-11T01:10:10.766924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e446502666fb42004914198041f76294933f9472d2797ae9b0360c037e1e4f5a

Aliases

arxiv: 2606.11834 · arxiv_version: 2606.11834v1 · doi: 10.48550/arxiv.2606.11834 · pith_short_12: 4RDFAJTG7NBA · pith_short_16: 4RDFAJTG7NBAASIU · pith_short_8: 4RDFAJTG

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/4RDFAJTG7NBAASIUDGAED53CSS \
  | 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: e446502666fb42004914198041f76294933f9472d2797ae9b0360c037e1e4f5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5f6e324d6f5e8d3ac6edea546f446ff4f3fc7b96a8504233671e6303c2f4b25",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-06-10T09:16:15Z",
    "title_canon_sha256": "7fb9e31a42e1163baa1e92ba6cd1e10bbb4b06fdec900831b9b6bbd0c91a5e91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11834",
    "kind": "arxiv",
    "version": 1
  }
}