Pith Number

pith:5QUMDD5Q

pith:2025:5QUMDD5QMZ5WPKJBK4QMZYD7XT

not attested not anchored not stored refs pending

Adopting Use Case Descriptions for Requirements Specification: an Industrial Case Study

Anja Frattini, Julian Frattini

arxiv:2506.13303 v1 · 2025-06-16 · 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{5QUMDD5QMZ5WPKJBK4QMZYD7XT}

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	2026-07-05T11:22:08.381825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec28c18fb0667b67a9215720cce07fbcf883ca6dc5d38bddb3b4d049d4ab4e02

Aliases

arxiv: 2506.13303 · arxiv_version: 2506.13303v1 · doi: 10.48550/arxiv.2506.13303 · pith_short_12: 5QUMDD5QMZ5W · pith_short_16: 5QUMDD5QMZ5WPKJB · pith_short_8: 5QUMDD5Q

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/5QUMDD5QMZ5WPKJBK4QMZYD7XT \
  | 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: ec28c18fb0667b67a9215720cce07fbcf883ca6dc5d38bddb3b4d049d4ab4e02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba13ceb4f3f387a5fcc4f51f6049db2f8f4802383956e1a8702112f8418876de",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2025-06-16T09:43:34Z",
    "title_canon_sha256": "bce415a91881e74db6c3c879b74eb1c84139dfa77dc89e4af1e0b3f5ececd88e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.13303",
    "kind": "arxiv",
    "version": 1
  }
}