Pith Number

pith:5GQU5AGW

pith:2011:5GQU5AGWJCEKXDJW5XHSOKRVHB

not attested not anchored not stored refs pending

On profinite groups in which commutators are covered by finitely many subgroups

Cristina Acciarri, Pavel Shumyatsky

arxiv:1112.5879 v1 · 2011-12-26 · 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{5GQU5AGWJCEKXDJW5XHSOKRVHB}

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	2026-05-18T04:05:37.375458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9a14e80d64888ab8d36edcf272a35386302ccc329265493f24349b9f0dc1718

Aliases

arxiv: 1112.5879 · arxiv_version: 1112.5879v1 · doi: 10.48550/arxiv.1112.5879 · pith_short_12: 5GQU5AGWJCEK · pith_short_16: 5GQU5AGWJCEKXDJW · pith_short_8: 5GQU5AGW

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/5GQU5AGWJCEKXDJW5XHSOKRVHB \
  | 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: e9a14e80d64888ab8d36edcf272a35386302ccc329265493f24349b9f0dc1718

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb43bd7cab35007e51d86d8c3fe73a1209e5b9eea6f6595962f031dc8f109f52",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2011-12-26T18:43:26Z",
    "title_canon_sha256": "b6891d2bad3894cf7d6384e308dc3bde5eaf63105eb03b8c2d4a249c4c46aff3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.5879",
    "kind": "arxiv",
    "version": 1
  }
}