Pith Number

pith:6LEEDG3K

pith:2020:6LEEDG3KKZSOH2Q25ES5WCXTTG

not attested not anchored not stored refs pending

Adjoint algebraic groups as automorphism groups of a projector on a central simple algebra

Andrei Semenov, Viktor Petrov

arxiv:2004.08191 v1 · 2020-04-17 · 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{6LEEDG3KKZSOH2Q25ES5WCXTTG}

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	2026-07-05T00:55:50.880527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2c8419b6a5664e3ea1ae925db0af399826544dd76fdd2d2f5797376fd32a2c1

Aliases

arxiv: 2004.08191 · arxiv_version: 2004.08191v1 · doi: 10.48550/arxiv.2004.08191 · pith_short_12: 6LEEDG3KKZSO · pith_short_16: 6LEEDG3KKZSOH2Q2 · pith_short_8: 6LEEDG3K

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/6LEEDG3KKZSOH2Q25ES5WCXTTG \
  | 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: f2c8419b6a5664e3ea1ae925db0af399826544dd76fdd2d2f5797376fd32a2c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef5b63ade483aa7414784eedc5c3faf1cf4e56852f4dce5db9ca1a03b86ae531",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2020-04-17T11:58:08Z",
    "title_canon_sha256": "236c2167b32f148de9d61b732f4847b95518511b06a11703adc79041eb18b600"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.08191",
    "kind": "arxiv",
    "version": 1
  }
}