Pith Number

pith:QGRC7OLZ

pith:2007:QGRC7OLZWKSE2SSJEU6YSHG6ZY

not attested not anchored not stored refs pending

From Nondeterministic B\"uchi and Streett Automata to Deterministic Parity Automata

Nir Piterman

arxiv:0705.2205 v2 · 2007-05-15 · 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{QGRC7OLZWKSE2SSJEU6YSHG6ZY}

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	2026-05-17T23:51:24.239983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81a22fb979b2a44d4a49253d891cdece0b5c44d825b5c5263b53a35b0b03ba14

Aliases

arxiv: 0705.2205 · arxiv_version: 0705.2205v2 · doi: 10.48550/arxiv.0705.2205 · pith_short_12: QGRC7OLZWKSE · pith_short_16: QGRC7OLZWKSE2SSJ · pith_short_8: QGRC7OLZ

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/QGRC7OLZWKSE2SSJEU6YSHG6ZY \
  | 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: 81a22fb979b2a44d4a49253d891cdece0b5c44d825b5c5263b53a35b0b03ba14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4149f1585ab38aa38ca64dbca55bd562bbf5ab26baa5ef60ee00fea15b740aef",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "",
    "primary_cat": "cs.LO",
    "submitted_at": "2007-05-15T18:08:15Z",
    "title_canon_sha256": "02bdd2800b14ad6462f24b634b46d64c260f3494ea7b2d65945b202f59640740"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.2205",
    "kind": "arxiv",
    "version": 2
  }
}