Pith Number

pith:KEERWW6Z

pith:2011:KEERWW6Z5ZWGXLWMWUF6M7VVLO

not attested not anchored not stored refs pending

Isomorphisms of Brin-Higman-Thompson groups

Conchita Mart\'inez-P\'erez, Warren Dicks

arxiv:1112.1606 v3 · 2011-12-07 · 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{KEERWW6Z5ZWGXLWMWUF6M7VVLO}

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	2026-05-18T02:48:26.274591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51091b5bd9ee6c6baeccb50be67eb55b95596d77c6debabbade4d59cd12867d2

Aliases

arxiv: 1112.1606 · arxiv_version: 1112.1606v3 · doi: 10.48550/arxiv.1112.1606 · pith_short_12: KEERWW6Z5ZWG · pith_short_16: KEERWW6Z5ZWGXLWM · pith_short_8: KEERWW6Z

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/KEERWW6Z5ZWGXLWMWUF6M7VVLO \
  | 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: 51091b5bd9ee6c6baeccb50be67eb55b95596d77c6debabbade4d59cd12867d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e0429526856ab224a616f56a9ad4332e3866d3d0dbe50965333e6ea7f4aa373",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2011-12-07T16:10:28Z",
    "title_canon_sha256": "a58699d7fa4de29dc0b707219c7e54f218b424c05f09e488570dffb608f3de0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.1606",
    "kind": "arxiv",
    "version": 3
  }
}