Pith Number

pith:JAFPHBXJ

pith:2021:JAFPHBXJ52DE3ZOJ26BVLK6QOJ

not attested not anchored not stored refs pending

The Black-Box Simplex Architecture for Runtime Assurance of Autonomous CPS

Sanaz Sheikhi, Scott A. Smolka, Scott D. Stoller, Stanley Bak, Usama Mehmood

arxiv:2102.12981 v3 · 2021-02-24 · cs.SE · cs.SY · eess.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{JAFPHBXJ52DE3ZOJ26BVLK6QOJ}

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	2026-07-05T04:27:27.938641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

480af386e9ee864de5c9d78355abd0726854e655f7419a92e7acc655f9282225

Aliases

arxiv: 2102.12981 · arxiv_version: 2102.12981v3 · doi: 10.48550/arxiv.2102.12981 · pith_short_12: JAFPHBXJ52DE · pith_short_16: JAFPHBXJ52DE3ZOJ · pith_short_8: JAFPHBXJ

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/JAFPHBXJ52DE3ZOJ26BVLK6QOJ \
  | 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: 480af386e9ee864de5c9d78355abd0726854e655f7419a92e7acc655f9282225

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a93fd40d731fba52171840815ca8bdd87d0ff25f2bd4c126c201435ef37961f2",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-02-24T09:18:32Z",
    "title_canon_sha256": "11ec20a061726cdeba1b4fbf0cc55ed799f73c7056c9c3b4ea03f824dbb35e7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.12981",
    "kind": "arxiv",
    "version": 3
  }
}