Pith Number

pith:7RV34BQ5

pith:2019:7RV34BQ5YIXNO4WHFBSD2CHSCN

not attested not anchored not stored refs pending

Slowly synchronizing DFAs of 7 states and maximal slowly synchronizing DFAs

Michiel de Bondt

arxiv:1902.05331 v1 · 2019-02-14 · 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{7RV34BQ5YIXNO4WHFBSD2CHSCN}

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	2026-05-17T23:54:01.194263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc6bbe061dc22ed772c728643d08f213460bee7345eb4bac8cee97a99f6cb727

Aliases

arxiv: 1902.05331 · arxiv_version: 1902.05331v1 · doi: 10.48550/arxiv.1902.05331 · pith_short_12: 7RV34BQ5YIXN · pith_short_16: 7RV34BQ5YIXNO4WH · pith_short_8: 7RV34BQ5

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/7RV34BQ5YIXNO4WHFBSD2CHSCN \
  | 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: fc6bbe061dc22ed772c728643d08f213460bee7345eb4bac8cee97a99f6cb727

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8831913b8c21bdcd0dffd126b0b229b6455bb1f8685b7a3e5b001d5afb83ec82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2019-02-14T12:53:23Z",
    "title_canon_sha256": "e16b163192a007e544c2a18072af08b122a88aec97ad2ad2c6aa3c8926ffe502"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05331",
    "kind": "arxiv",
    "version": 1
  }
}