Pith Number

pith:PGEX3E4Y

pith:2026:PGEX3E4YS7RFPHTTYSVDCAS3ZO

not attested not anchored not stored refs pending

Algorithms and fine-grained complexity for nondeterministic and symmetric difference automata

Brink van der Merwe, Dmitry Chistikov, Neha Rino, Rados{\l}aw Pi\'orkowski

arxiv:2607.00742 v1 · 2026-07-01 · 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{PGEX3E4YS7RFPHTTYSVDCAS3ZO}

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	2026-07-02T01:17:53.490258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79897d939897e2579e73c4aa31025bcbadc3c24174b409113a49ac87476cd0c3

Aliases

arxiv: 2607.00742 · arxiv_version: 2607.00742v1 · doi: 10.48550/arxiv.2607.00742 · pith_short_12: PGEX3E4YS7RF · pith_short_16: PGEX3E4YS7RFPHTT · pith_short_8: PGEX3E4Y

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/PGEX3E4YS7RFPHTTYSVDCAS3ZO \
  | 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: 79897d939897e2579e73c4aa31025bcbadc3c24174b409113a49ac87476cd0c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a13d15059ded69f903d4e1733b4c3c750bcbb79602c8c9f995a0c24e7af09de1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2026-07-01T10:24:10Z",
    "title_canon_sha256": "f65c6430841716196a0f1c07279945bdcbe1489a69e7819b4f57b76b255c547f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.00742",
    "kind": "arxiv",
    "version": 1
  }
}