Pith Number

pith:5F3C6KYW

pith:2017:5F3C6KYWDSRZAHVZLUVBXVFFPO

not attested not anchored not stored refs pending

Communicating Finite-State Machines and Two-Variable Logic

Benedikt Bollig, Marie Fortin, Paul Gastin

arxiv:1709.09991 v1 · 2017-09-28 · cs.LO · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5F3C6KYWDSRZAHVZLUVBXVFFPO}

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	2026-05-18T00:34:05.993233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9762f2b161ca3901eb95d2a1bd4a57bbafc56e6fb8cea1f7fec10eb0cd15e1d

Aliases

arxiv: 1709.09991 · arxiv_version: 1709.09991v1 · doi: 10.48550/arxiv.1709.09991 · pith_short_12: 5F3C6KYWDSRZ · pith_short_16: 5F3C6KYWDSRZAHVZ · pith_short_8: 5F3C6KYW

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/5F3C6KYWDSRZAHVZLUVBXVFFPO \
  | 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: e9762f2b161ca3901eb95d2a1bd4a57bbafc56e6fb8cea1f7fec10eb0cd15e1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6960216f6cbd035c87c5b9656e5af216d0534d8064505aee786bcf43a03609a7",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-09-28T14:39:36Z",
    "title_canon_sha256": "c9fc34deb925a6859b5803c4994454b9593c32517c1b9e8dec95e36184f00acb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09991",
    "kind": "arxiv",
    "version": 1
  }
}