Pith Number

pith:R6FRZZIP

pith:2013:R6FRZZIPB77G6JW7XQNUGMFHMB

not attested not anchored not stored refs pending

R\"over's Simple Group is of Type $F_\infty$

Francesco Matucci, James Belk

arxiv:1312.2282 v2 · 2013-12-08 · 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{R6FRZZIPB77G6JW7XQNUGMFHMB}

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	2026-05-18T02:35:52.251130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f8b1ce50f0ffe6f26dfbc1b4330a76067262f76cbaff7db0f709f244f03f84a

Aliases

arxiv: 1312.2282 · arxiv_version: 1312.2282v2 · doi: 10.48550/arxiv.1312.2282 · pith_short_12: R6FRZZIPB77G · pith_short_16: R6FRZZIPB77G6JW7 · pith_short_8: R6FRZZIP

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/R6FRZZIPB77G6JW7XQNUGMFHMB \
  | 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: 8f8b1ce50f0ffe6f26dfbc1b4330a76067262f76cbaff7db0f709f244f03f84a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a183f44ea950e18bded885f4fb03a31ec828ff90c010eaa78b10f7075ff64b2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2013-12-08T23:33:48Z",
    "title_canon_sha256": "10f6497540e91b414084a54015ad2598af3b8bdba9250e78df8d4c6b5d0ca070"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2282",
    "kind": "arxiv",
    "version": 2
  }
}