Pith Number

pith:YSDXWZJA

pith:2012:YSDXWZJABUE2RHRPIFWZ3TL5UW

not attested not anchored not stored refs pending

Bisimilarity of Probabilistic Pushdown Automata

James Worrell, Petr Jancar, Stefan Kiefer, Vojtech Forejt

arxiv:1210.2273 v1 · 2012-10-08 · cs.FL · 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{YSDXWZJABUE2RHRPIFWZ3TL5UW}

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	2026-05-18T03:43:50.606762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4877b65200d09a89e2f416d9dcd7da5a93e713cdaef4a5bc0c090ce543afdf1

Aliases

arxiv: 1210.2273 · arxiv_version: 1210.2273v1 · doi: 10.48550/arxiv.1210.2273 · pith_short_12: YSDXWZJABUE2 · pith_short_16: YSDXWZJABUE2RHRP · pith_short_8: YSDXWZJA

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/YSDXWZJABUE2RHRPIFWZ3TL5UW \
  | 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: c4877b65200d09a89e2f416d9dcd7da5a93e713cdaef4a5bc0c090ce543afdf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb85a2150e6083ec93c50f51d9dab2598db47a31499059d3437d838a6d96b6e4",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2012-10-08T13:37:12Z",
    "title_canon_sha256": "6d3428519ab3372fd6732c05c6a3645caaebea1e40e17e4b7560b37da4b0c163"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2273",
    "kind": "arxiv",
    "version": 1
  }
}