Pith Number

pith:WZBZJBFM

pith:2016:WZBZJBFMAPL4HGITH322YNTMHX

not attested not anchored not stored refs pending

On automatic subsets of the Gaussian integers

Robbert Fokkink, Thijmen Krebs, Wieb Bosma

arxiv:1602.08579 v3 · 2016-02-27 · 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{WZBZJBFMAPL4HGITH322YNTMHX}

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	2026-05-18T01:07:56.786645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6439484ac03d7c399133ef5ac366c3df54765f3039ead96999eae132bf426d1

Aliases

arxiv: 1602.08579 · arxiv_version: 1602.08579v3 · doi: 10.48550/arxiv.1602.08579 · pith_short_12: WZBZJBFMAPL4 · pith_short_16: WZBZJBFMAPL4HGIT · pith_short_8: WZBZJBFM

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/WZBZJBFMAPL4HGITH322YNTMHX \
  | 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: b6439484ac03d7c399133ef5ac366c3df54765f3039ead96999eae132bf426d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38cddaf2cd2a756210f6d5d61343c7a65fd6da7ad497474e074581b01256d2c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2016-02-27T10:06:46Z",
    "title_canon_sha256": "2be93578d2f0a4d57009815a8a15f8e6f28b953da2dfa77d5297cb93682b592e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08579",
    "kind": "arxiv",
    "version": 3
  }
}