Pith Number

pith:BYS3KZKS

pith:2014:BYS3KZKSYP6C4QLLPYQILCZDLQ

not attested not anchored not stored refs pending

Which finite simple groups are unit groups?

Christopher Davis, Tommy Occhipinti

arxiv:1409.7518 v1 · 2014-09-26 · math.RA · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BYS3KZKSYP6C4QLLPYQILCZDLQ}

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	2026-05-18T02:28:20.553118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e25b56552c3fc2e416b7e20858b235c0834a3377bb1ac422875ab859dd9b7f5

Aliases

arxiv: 1409.7518 · arxiv_version: 1409.7518v1 · doi: 10.48550/arxiv.1409.7518 · pith_short_12: BYS3KZKSYP6C · pith_short_16: BYS3KZKSYP6C4QLL · pith_short_8: BYS3KZKS

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/BYS3KZKSYP6C4QLLPYQILCZDLQ \
  | 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: 0e25b56552c3fc2e416b7e20858b235c0834a3377bb1ac422875ab859dd9b7f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0bac385a3b3bf7cf7759a2d4af07fc6403aec52b0a1fae8bf33032c828db64b",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2014-09-26T09:52:35Z",
    "title_canon_sha256": "3b65cd2a91de7e7719b51698a041672a5a3b9347d96c1f523de0b70b1096f5bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7518",
    "kind": "arxiv",
    "version": 1
  }
}