Pith Number

pith:PJXLN2IV

pith:2016:PJXLN2IVGIVU7UIDMJSUVAV6QB

not attested not anchored not stored refs pending

Regular Separability of Parikh Automata

Charles Paperman, Lorenzo Clemente, S{\l}awomir Lasota, Wojciech Czerwi\'nski

arxiv:1612.06233 v1 · 2016-12-19 · 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{PJXLN2IVGIVU7UIDMJSUVAV6QB}

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	2026-05-18T00:54:42.854777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a6eb6e915322b4fd10362654a82be807bbc56a832f5ee6f639df6c494ca5394

Aliases

arxiv: 1612.06233 · arxiv_version: 1612.06233v1 · doi: 10.48550/arxiv.1612.06233 · pith_short_12: PJXLN2IVGIVU · pith_short_16: PJXLN2IVGIVU7UID · pith_short_8: PJXLN2IV

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/PJXLN2IVGIVU7UIDMJSUVAV6QB \
  | 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: 7a6eb6e915322b4fd10362654a82be807bbc56a832f5ee6f639df6c494ca5394

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f433b859c099669bf31243957033dfb9293027ebc5fda046510379d7d194b96c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2016-12-19T15:49:27Z",
    "title_canon_sha256": "3a84f8ba957af37d66134f2ad2d0c9446cf07313becf10bc269d2e5c8fa8a20e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.06233",
    "kind": "arxiv",
    "version": 1
  }
}