Pith Number

pith:QE5LKKX7

pith:2001:QE5LKKX7Z6VKMQHRJTOZ73KBPI

not attested not anchored not stored refs pending

Generic algebras with involution of degree 8m

David J. Saltman, Jean-Pierre Tignol

arxiv:math/0102228 v1 · 2001-02-28 · math.AG · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QE5LKKX7Z6VKMQHRJTOZ73KBPI}

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	2026-05-18T01:05:37.881418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

813ab52affcfaaa640f14cdd9fed417a2ffd97eeca8df22aff81ae32eb63d626

Aliases

arxiv: math/0102228 · arxiv_version: math/0102228v1 · doi: 10.48550/arxiv.math/0102228 · pith_short_12: QE5LKKX7Z6VK · pith_short_16: QE5LKKX7Z6VKMQHR · pith_short_8: QE5LKKX7

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/QE5LKKX7Z6VKMQHRJTOZ73KBPI \
  | 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: 813ab52affcfaaa640f14cdd9fed417a2ffd97eeca8df22aff81ae32eb63d626

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d055a2315d220534f2ec6981e4f690100ae87df2efb66d36921422206539f3d",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2001-02-28T22:45:38Z",
    "title_canon_sha256": "1e0e6f96bfee3e7e3305128d3d1ef07cf1e66dfe353db4fd67dad7f3036ee037"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0102228",
    "kind": "arxiv",
    "version": 1
  }
}