Pith Number

pith:65W4M7RD

pith:2007:65W4M7RDRDQTAH663ADHSNDL7B

not attested not anchored not stored refs pending

Infinite groups with fixed point properties

A. Minasyan, G. Arzhantseva, I. J. Leary, J. Swiatkowski, M.R. Bridson, T. Januszkiewicz

arxiv:0711.4238 v2 · 2007-11-27 · math.GR · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{65W4M7RDRDQTAH663ADHSNDL7B}

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	2026-05-18T02:38:19.301440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f76dc67e2388e1301fded80679346bf85f906bc30d16d9ca4825e8cff2ae1e18

Aliases

arxiv: 0711.4238 · arxiv_version: 0711.4238v2 · doi: 10.48550/arxiv.0711.4238 · pith_short_12: 65W4M7RDRDQT · pith_short_16: 65W4M7RDRDQTAH66 · pith_short_8: 65W4M7RD

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/65W4M7RDRDQTAH663ADHSNDL7B \
  | 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: f76dc67e2388e1301fded80679346bf85f906bc30d16d9ca4825e8cff2ae1e18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e355e488e93d218487b65124926acacf5086696dafa1aa1c85426abfb83219c3",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2007-11-27T12:27:39Z",
    "title_canon_sha256": "59bef88967a902f1c88c2553741e01f44238bd660c3c9ae0a3119dd75ce1901a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.4238",
    "kind": "arxiv",
    "version": 2
  }
}