Pith Number

pith:BKAEPIJR

pith:2012:BKAEPIJRDLSCGX4DO6ZT2R5GX4

not attested not anchored not stored refs pending

Essential p-dimension of algebraic groups whose connected component is a torus

Aurel Meyer, Mark MacDonald, Roland L\"otscher, Zinovy Reichstein

arxiv:1202.5540 v1 · 2012-02-24 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKAEPIJRDLSCGX4DO6ZT2R5GX4}

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	2026-05-18T04:01:36.668881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a8047a1311ae4235f8377b33d47a6bf0606ce9e993e715a756181d1a658bc93

Aliases

arxiv: 1202.5540 · arxiv_version: 1202.5540v1 · doi: 10.48550/arxiv.1202.5540 · pith_short_12: BKAEPIJRDLSC · pith_short_16: BKAEPIJRDLSCGX4D · pith_short_8: BKAEPIJR

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/BKAEPIJRDLSCGX4DO6ZT2R5GX4 \
  | 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: 0a8047a1311ae4235f8377b33d47a6bf0606ce9e993e715a756181d1a658bc93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41800c58b54416279a68dd042583f120321189b63048b2b9397a2688b34f49b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-02-24T20:05:00Z",
    "title_canon_sha256": "99cde6f0e9ca88b35615ba71bf87063cf40b1281e6173fc64e32b4af43946ee8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5540",
    "kind": "arxiv",
    "version": 1
  }
}