Pith Number

pith:LZ4GNNTS

pith:2021:LZ4GNNTSVT22FHVOYG6GQZZNYY

not attested not anchored not stored refs pending

Dissecting the square into seven or nine congruent parts

Edgardo Rold\'an-Pensado, Gerardo L. Maldonado

arxiv:2104.04940 v4 · 2021-04-11 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LZ4GNNTSVT22FHVOYG6GQZZNYY}

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	2026-07-05T03:34:06.095267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e7866b672acf5a29eaec1bc68672dc6332318869e186da03aa2e794f984f029

Aliases

arxiv: 2104.04940 · arxiv_version: 2104.04940v4 · doi: 10.48550/arxiv.2104.04940 · pith_short_12: LZ4GNNTSVT22 · pith_short_16: LZ4GNNTSVT22FHVO · pith_short_8: LZ4GNNTS

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/LZ4GNNTSVT22FHVOYG6GQZZNYY \
  | 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: 5e7866b672acf5a29eaec1bc68672dc6332318869e186da03aa2e794f984f029

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a396f1628bc102ab4906f0509c6da861adbf4cbfc5e2072eaee1b4c7e7f418ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2021-04-11T07:21:57Z",
    "title_canon_sha256": "c60ade45baea05f73b081b6e06a3ce93d4533ce7e097f98f66b186b2a886c363"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.04940",
    "kind": "arxiv",
    "version": 4
  }
}