Pith Number

pith:CD45XCC7

pith:2026:CD45XCC76RYTMXQMIRMVFK2KR4

not attested not anchored not stored refs pending

CB-VER: A Stable Foundation for Modular Control Plane Verification

Aarti Gupta, David Walker, Dexin Zhang, Timothy Alberdingk Thijm

arxiv:2604.03539 v2 · 2026-04-04 · cs.NI · 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{CD45XCC76RYTMXQMIRMVFK2KR4}

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	2026-05-21T01:04:25.308292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10f9db885ff471365e0c445952ab4a8f161e034c15f863e1b12b2056b1f1fbed

Aliases

arxiv: 2604.03539 · arxiv_version: 2604.03539v2 · doi: 10.48550/arxiv.2604.03539 · pith_short_12: CD45XCC76RYT · pith_short_16: CD45XCC76RYTMXQM · pith_short_8: CD45XCC7

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/CD45XCC76RYTMXQMIRMVFK2KR4 \
  | 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: 10f9db885ff471365e0c445952ab4a8f161e034c15f863e1b12b2056b1f1fbed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "121142e65dbf63c20e3f5b200924f9706cf20e3ee2e6c22dac25caa6715db89c",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2026-04-04T01:30:53Z",
    "title_canon_sha256": "03c1c22dfa015565ed6627780ba91c8d29c685bded906ed90676562ef6c4fa64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.03539",
    "kind": "arxiv",
    "version": 2
  }
}