Pith Number

pith:OSUCV3BI

pith:2026:OSUCV3BIFXWUMZ2UFW7K6AI3EE

not attested not anchored not stored refs pending

Isoparametric hypersurfaces in $\mathbb{S}^{n}\times \mathbb{S}^{m}$ and $\mathbb{S}^{n}\times \mathbb{H}^{m}$

Huixin Tan, Wenjiao Yan, Yuquan Xie

arxiv:2603.00447 v2 · 2026-02-28 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OSUCV3BIFXWUMZ2UFW7K6AI3EE}

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	2026-05-26T02:04:07.519207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74a82aec282ded4667542dbeaf011b211b8c234e563b6c98e9200f8ff4cb16f5

Aliases

arxiv: 2603.00447 · arxiv_version: 2603.00447v2 · doi: 10.48550/arxiv.2603.00447 · pith_short_12: OSUCV3BIFXWU · pith_short_16: OSUCV3BIFXWUMZ2U · pith_short_8: OSUCV3BI

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/OSUCV3BIFXWUMZ2UFW7K6AI3EE \
  | 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: 74a82aec282ded4667542dbeaf011b211b8c234e563b6c98e9200f8ff4cb16f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95cbb52c91d258742182abfc9c459bd3ae0db121ddfb2f08241524bb8dd829f1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2026-02-28T04:02:22Z",
    "title_canon_sha256": "d2fb91edd9622580029d547cdd4057ad2fdaa825276f7f1930976122b1c6ffcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.00447",
    "kind": "arxiv",
    "version": 2
  }
}