Pith Number

pith:P3SULZ2J

pith:2014:P3SULZ2JARVYCWHPEZJN7EGFZI

not attested not anchored not stored refs pending

Formalism of Requirements for Safety-Critical Software: Where Does the Benefit Come From?

Andrew Rae, Ibrahim Habli

arxiv:1404.6802 v1 · 2014-04-27 · 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{P3SULZ2JARVYCWHPEZJN7EGFZI}

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	2026-05-18T02:53:05.891014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ee545e749046b8158ef2652df90c5ca3ff3b6749389ac4164d8d8b74156e78c

Aliases

arxiv: 1404.6802 · arxiv_version: 1404.6802v1 · doi: 10.48550/arxiv.1404.6802 · pith_short_12: P3SULZ2JARVY · pith_short_16: P3SULZ2JARVYCWHP · pith_short_8: P3SULZ2J

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/P3SULZ2JARVYCWHPEZJN7EGFZI \
  | 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: 7ee545e749046b8158ef2652df90c5ca3ff3b6749389ac4164d8d8b74156e78c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "879fe1fc3bcadab71046abeb48b1d3461ae826c2b92be92e557ec505021e991b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2014-04-27T18:28:31Z",
    "title_canon_sha256": "aa29ae19345ecaff7fdd81e314957168103910397bf7004d9e04365c2d0baf41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.6802",
    "kind": "arxiv",
    "version": 1
  }
}