Pith Number

pith:YBYL5KBE

pith:2016:YBYL5KBESPXCMGUHUK3GNDPJZ4

not attested not anchored not stored refs pending

A comprehensive safety engineering approach for software-intensive systems based on STPA

Asim Abdulkhaleq, Nancy Leveson, Stefan Wagner

arxiv:1612.03109 v1 · 2016-12-09 · cs.SE · cs.SY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBYL5KBESPXCMGUHUK3GNDPJZ4}

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	2026-05-18T00:55:26.468587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c070bea82493ee261a87a2b6668de9cf0e3399c25d603ebc2429ab1e588d328f

Aliases

arxiv: 1612.03109 · arxiv_version: 1612.03109v1 · doi: 10.48550/arxiv.1612.03109 · pith_short_12: YBYL5KBESPXC · pith_short_16: YBYL5KBESPXCMGUH · pith_short_8: YBYL5KBE

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/YBYL5KBESPXCMGUHUK3GNDPJZ4 \
  | 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: c070bea82493ee261a87a2b6668de9cf0e3399c25d603ebc2429ab1e588d328f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb255120eae5f7e5ace1730cc2e8688edd27d2872d7f0a619c71720a927cc35a",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2016-12-09T17:59:02Z",
    "title_canon_sha256": "54c057f24f44234f0f969122f9f3819120f01b3158e6287a05204db17be2ec61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.03109",
    "kind": "arxiv",
    "version": 1
  }
}