Pith Number

pith:XJBFQDUC

pith:2022:XJBFQDUC4DGQFHYGOVU3PX5OHA

not attested not anchored not stored refs pending

Type systems and maximal subgroups of Thompson's group $V$

Collin Bleak, James Belk, Martyn Quick, Rachel Skipper

arxiv:2206.12631 v2 · 2022-06-25 · 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{XJBFQDUC4DGQFHYGOVU3PX5OHA}

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.

Cited by

1 paper in Pith

The Higman--Thompson groups $V_n$ are $(2,2,2)$-generated

Receipt and verification

First computed	2026-07-05T07:49:28.481605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba42580e82e0cd029f067569b7dfae38056e56274feb673eb09a310c3dda061f

Aliases

arxiv: 2206.12631 · arxiv_version: 2206.12631v2 · doi: 10.48550/arxiv.2206.12631 · pith_short_12: XJBFQDUC4DGQ · pith_short_16: XJBFQDUC4DGQFHYG · pith_short_8: XJBFQDUC

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/XJBFQDUC4DGQFHYGOVU3PX5OHA \
  | 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: ba42580e82e0cd029f067569b7dfae38056e56274feb673eb09a310c3dda061f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a8bdc531049d8b6675ca1e329c618495b5a40abaadd6935b8d6500d84f3df34",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2022-06-25T12:14:35Z",
    "title_canon_sha256": "b7f16b64ee6ed0f0e18c581c04c2cfc3df69df17e0b28046020caf5bc31d1424"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.12631",
    "kind": "arxiv",
    "version": 2
  }
}