Pith Number

pith:L7O4HFZL

pith:2018:L7O4HFZLUXNTVN4VABOVXYVBEW

not attested not anchored not stored refs pending

Checkerboard incircular nets. Laguerre geometry and parametrisation

Alexander I. Bobenko, Jan Techter, Wolfgang K. Schief

arxiv:1808.07254 v1 · 2018-08-22 · math.DG · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L7O4HFZLUXNTVN4VABOVXYVBEW}

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	2026-05-18T00:07:29.442260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fddc3972ba5db3ab795005d5be2a1258f71888052235c786627f6afc0379369

Aliases

arxiv: 1808.07254 · arxiv_version: 1808.07254v1 · doi: 10.48550/arxiv.1808.07254 · pith_short_12: L7O4HFZLUXNT · pith_short_16: L7O4HFZLUXNTVN4V · pith_short_8: L7O4HFZL

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/L7O4HFZLUXNTVN4VABOVXYVBEW \
  | 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: 5fddc3972ba5db3ab795005d5be2a1258f71888052235c786627f6afc0379369

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7500e6ed3babaee8d34bc631a516f8b5c66f6edc5fc6a8f2ac4569c8f9ab50c3",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-08-22T07:39:02Z",
    "title_canon_sha256": "60da9df3364f275cf3e7ef50a38127a2a3a66cdb9d2b2101df139f409e13282a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07254",
    "kind": "arxiv",
    "version": 1
  }
}