Pith Number

pith:ISGEEF4Q

pith:2025:ISGEEF4QBNC7LJG2U5HBAJQUZB

not attested not anchored not stored refs pending

On the non-existence of left-invariant hypercomplex structures on $SU(2)^{4n}$

David N. Pham

arxiv:2505.21766 v3 · 2025-05-27 · 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{ISGEEF4QBNC7LJG2U5HBAJQUZB}

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	2026-07-05T12:04:35.269599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

448c4217900b45f5a4daa74e102614c86cae0c69f371613b08f1c8f5fcc1a398

Aliases

arxiv: 2505.21766 · arxiv_version: 2505.21766v3 · doi: 10.48550/arxiv.2505.21766 · pith_short_12: ISGEEF4QBNC7 · pith_short_16: ISGEEF4QBNC7LJG2 · pith_short_8: ISGEEF4Q

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/ISGEEF4QBNC7LJG2U5HBAJQUZB \
  | 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: 448c4217900b45f5a4daa74e102614c86cae0c69f371613b08f1c8f5fcc1a398

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c6c352be58fb2adcb41bc929998857fda1737a9732fa0d5d9e1a040a8c58e77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2025-05-27T21:00:21Z",
    "title_canon_sha256": "08ed1e5e697bc700bb3fc6d6db3e9213a5b8c2d89da36045dff6bbc5e3662b40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.21766",
    "kind": "arxiv",
    "version": 3
  }
}