Pith Number

pith:OT42K5YA

pith:2019:OT42K5YATTM5TZDAR4PQ5T2M7K

not attested not anchored not stored refs pending

Assurance of System Safety: A Survey of Design and Argument Patterns

Mario Gleirscher, Stefan Kugele

arxiv:1902.05537 v1 · 2019-02-14 · 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{OT42K5YATTM5TZDAR4PQ5T2M7K}

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	2026-05-17T23:53:58.420261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74f9a577009cd9d9e4608f1f0ecf4cfabcfff10095e1a49e8961ad6dd32f416c

Aliases

arxiv: 1902.05537 · arxiv_version: 1902.05537v1 · doi: 10.48550/arxiv.1902.05537 · pith_short_12: OT42K5YATTM5 · pith_short_16: OT42K5YATTM5TZDA · pith_short_8: OT42K5YA

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/OT42K5YATTM5TZDAR4PQ5T2M7K \
  | 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: 74f9a577009cd9d9e4608f1f0ecf4cfabcfff10095e1a49e8961ad6dd32f416c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f14307af234faab801cd4319e41b74afbba334553b97d4b6c8a97b6830898488",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-02-14T18:34:54Z",
    "title_canon_sha256": "6c5024411e0fbe1928656721a4036206eb7bdfaa5a021bb54cf2addbfe37ea83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05537",
    "kind": "arxiv",
    "version": 1
  }
}