Pith Number

pith:JLJSPPEX

pith:2021:JLJSPPEX6QU5ZO6TE2WCCMGKPO

not attested not anchored not stored refs pending

Crowbar: Behavioral Symbolic Execution for Deductive Verification of Active Objects

Eduard Kamburjan, Marco Scaletta, Nils Rollshausen

arxiv:2102.10127 v2 · 2021-02-19 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JLJSPPEX6QU5ZO6TE2WCCMGKPO}

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	2026-07-05T03:56:00.761020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ad327bc97f429dcbbd326ac2130ca7b8764ace14e03f0390352a21ca654ce33

Aliases

arxiv: 2102.10127 · arxiv_version: 2102.10127v2 · doi: 10.48550/arxiv.2102.10127 · pith_short_12: JLJSPPEX6QU5 · pith_short_16: JLJSPPEX6QU5ZO6T · pith_short_8: JLJSPPEX

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/JLJSPPEX6QU5ZO6TE2WCCMGKPO \
  | 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: 4ad327bc97f429dcbbd326ac2130ca7b8764ace14e03f0390352a21ca654ce33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f07c2eeb362072ddb06e83645f6d6180f7c665a19de29e9000e13f1267e8b9cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2021-02-19T19:12:24Z",
    "title_canon_sha256": "f54d970849e38e2886ded39b041bc6437a066580a12fc177109e56e5fe1cf220"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.10127",
    "kind": "arxiv",
    "version": 2
  }
}