Pith Number

pith:QT25B2EQ

pith:2009:QT25B2EQ7LR74IVFXTJHN3EUF5

not attested not anchored not stored refs pending

Is the function field of a reductive Lie algebra purely transcendental over the field of invariants for the adjoint action?

Boris Kunyavski\u{i}, Jean-Louis Colliot-Th\'el\`ene, Vladimir L. Popov, Zinovy Reichstein

arxiv:0901.4358 v5 · 2009-01-27 · math.AG · 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{QT25B2EQ7LR74IVFXTJHN3EUF5}

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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	2026-05-18T03:02:44.775975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84f5d0e890fae3fe22a5bcd276ec942f5c54ff7cf5ad4ae1a537934a3d6386e3

Aliases

arxiv: 0901.4358 · arxiv_version: 0901.4358v5 · doi: 10.48550/arxiv.0901.4358 · pith_short_12: QT25B2EQ7LR7 · pith_short_16: QT25B2EQ7LR74IVF · pith_short_8: QT25B2EQ

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/QT25B2EQ7LR74IVFXTJHN3EUF5 \
  | 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: 84f5d0e890fae3fe22a5bcd276ec942f5c54ff7cf5ad4ae1a537934a3d6386e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbd094ead67ede0047d218363e5f65e326d8fa7958ed6440dd9bdf3c8b0cf0b3",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-01-27T21:48:22Z",
    "title_canon_sha256": "872594342e0bae310482d7626068ad01c8a68d34a9f5d12320c5554408d65ee6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4358",
    "kind": "arxiv",
    "version": 5
  }
}