Pith Number

pith:K64G7O26

pith:2022:K64G7O26RXZLVEARHMRZPVLFTL

not attested not anchored not stored refs pending

Isoperimetric Formulas for Hyperbolic Animals

Erika Roldan, Rosemberg Toala-Enriquez

arxiv:2206.14910 v1 · 2022-06-29 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K64G7O26RXZLVEARHMRZPVLFTL}

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	2026-07-05T04:36:11.627959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57b86fbb5e8df2ba90113b2397d5659af93beeaa1cbf1d5c194525f3589db492

Aliases

arxiv: 2206.14910 · arxiv_version: 2206.14910v1 · doi: 10.48550/arxiv.2206.14910 · pith_short_12: K64G7O26RXZL · pith_short_16: K64G7O26RXZLVEAR · pith_short_8: K64G7O26

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/K64G7O26RXZLVEARHMRZPVLFTL \
  | 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: 57b86fbb5e8df2ba90113b2397d5659af93beeaa1cbf1d5c194525f3589db492

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "400e3452e35b07221e5b6405899005552ffb9802e931a236b7adee9c6878e740",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2022-06-29T20:53:52Z",
    "title_canon_sha256": "50d5a12ea65a917491400bb5e8d8bf84681cee68573be4bd47c035d1b74df8e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.14910",
    "kind": "arxiv",
    "version": 1
  }
}