Pith Number

pith:4DYWFAQ4

pith:2018:4DYWFAQ4X47FN6IZT55R7JQZC3

not attested not anchored not stored refs pending

Status Quo in Requirements Engineering: A Theory and a Global Family of Surveys

Ahmed Tuzcu, Andr\'e Schekelmann, Antonio Vetr\'o, Birgit Penzenstadler, Casper Lassenius, Daniel M\'endez Fern\'andez, Desmond Greer, Dietmar Pfahl, Dietmar Winkler, Guenther Ruhe, Jose Luis de la Vara, Maleknaz Nayebi, Marcos Kalinowski, Marie-Therese Christiansson, Markku Oivo, Michael Felderer, Rafael Prikladnicki, Rodrigo Sp\'inola, Roel Wieringa, Sagar Sen, Stefan Wagner, Tayana Conte, Tomi M\"annist\"o

arxiv:1805.07951 v4 · 2018-05-21 · 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{4DYWFAQ4X47FN6IZT55R7JQZC3}

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	2026-05-17T23:50:34.032311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0f162821cbf3e56f9199f7b1fa61916e3482253e8311b9b720059430fd6aea2

Aliases

arxiv: 1805.07951 · arxiv_version: 1805.07951v4 · doi: 10.48550/arxiv.1805.07951 · pith_short_12: 4DYWFAQ4X47F · pith_short_16: 4DYWFAQ4X47FN6IZ · pith_short_8: 4DYWFAQ4

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/4DYWFAQ4X47FN6IZT55R7JQZC3 \
  | 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: e0f162821cbf3e56f9199f7b1fa61916e3482253e8311b9b720059430fd6aea2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76e80038f1bb032a8ae9cf62db2b892e3b130dd944f853678ed1552f24d48b80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-05-21T08:57:22Z",
    "title_canon_sha256": "7ac8ed0f7b7f62b3664135662d6537c71b90e70a22486c2e2ab8ae91987ec51d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07951",
    "kind": "arxiv",
    "version": 4
  }
}