Pith Number

pith:RSH7M32E

pith:2020:RSH7M32EF7RQKX3HVAHTOB5W7Y

not attested not anchored not stored refs pending

Offline Runtime Verification of Safety Requirements using CSP

Matt Luckcuck

arxiv:2007.03522 v3 · 2020-07-07 · cs.RO · cs.FL · 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{RSH7M32EF7RQKX3HVAHTOB5W7Y}

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	2026-07-05T02:42:42.487242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c8ff66f442fe3055f67a80f3707b6fe0bb51c67585a08746dae0e318f39be7b

Aliases

arxiv: 2007.03522 · arxiv_version: 2007.03522v3 · doi: 10.48550/arxiv.2007.03522 · pith_short_12: RSH7M32EF7RQ · pith_short_16: RSH7M32EF7RQKX3H · pith_short_8: RSH7M32E

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/RSH7M32EF7RQKX3HVAHTOB5W7Y \
  | 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: 8c8ff66f442fe3055f67a80f3707b6fe0bb51c67585a08746dae0e318f39be7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97a46a5db75b2bd2d4041d9bcd3914cb2e481e79fd6a5f4473ca7ce5deff53aa",
    "cross_cats_sorted": [
      "cs.FL",
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2020-07-07T14:53:25Z",
    "title_canon_sha256": "68a4a801a705cd9c6162a07cc83fa07a13adcbad7a3500bd05ea93fa0efdb827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.03522",
    "kind": "arxiv",
    "version": 3
  }
}