Pith Number

pith:VVQ3C4YQ

pith:2018:VVQ3C4YQQU7YBV3VLOY72GZVA2

not attested not anchored not stored refs pending

Safety-Critical Systems and Agile Development: A Mapping Study

Agneta Nilsson, Benjamin Kanagwa, Eric Knauss, Gul Calikli, Rashidah Kasauli

arxiv:1807.07800 v2 · 2018-07-20 · 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{VVQ3C4YQQU7YBV3VLOY72GZVA2}

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	2026-05-18T00:08:59.647928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad61b17310853f80d7755bb1fd1b3506b56db132e95ec809ab1cd77731ddefa4

Aliases

arxiv: 1807.07800 · arxiv_version: 1807.07800v2 · doi: 10.48550/arxiv.1807.07800 · pith_short_12: VVQ3C4YQQU7Y · pith_short_16: VVQ3C4YQQU7YBV3V · pith_short_8: VVQ3C4YQ

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/VVQ3C4YQQU7YBV3VLOY72GZVA2 \
  | 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: ad61b17310853f80d7755bb1fd1b3506b56db132e95ec809ab1cd77731ddefa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9821535f5985eef96d23c9fd41bc7cdfb359394c3b14d228e088fa4b6b62ce77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-07-20T11:49:57Z",
    "title_canon_sha256": "e7fbc151ef991e8d70dc67ca0b52509ab319257bab087e36e53eaaf3fc0ce22d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07800",
    "kind": "arxiv",
    "version": 2
  }
}