Pith Number

pith:DWR6JCXR

pith:2010:DWR6JCXR4FU44C5GUA5YPVMTKU

not attested not anchored not stored refs pending

Cohomological finiteness properties of the Brin-Thompson-Higman groups 2V and 3V

Brita E.A. Nucinkis, Conchita Martinez-Perez, Dessislava H. Kochloukova

arxiv:1009.4600 v2 · 2010-09-23 · 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{DWR6JCXR4FU44C5GUA5YPVMTKU}

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	2026-05-18T04:33:38.766573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1da3e48af1e169ce0ba6a03b87d593552be0b623e9573f54ddda78211f3c0952

Aliases

arxiv: 1009.4600 · arxiv_version: 1009.4600v2 · doi: 10.48550/arxiv.1009.4600 · pith_short_12: DWR6JCXR4FU4 · pith_short_16: DWR6JCXR4FU44C5G · pith_short_8: DWR6JCXR

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/DWR6JCXR4FU44C5GUA5YPVMTKU \
  | 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: 1da3e48af1e169ce0ba6a03b87d593552be0b623e9573f54ddda78211f3c0952

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f92b9384751e57ceab0ab0ffb989b1c86bbf341cf6d7e7c7fda53952a7aab83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2010-09-23T13:02:35Z",
    "title_canon_sha256": "014ce55935a581842bac841e0ede4f37579ba039a68659471311b63926cdc00c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4600",
    "kind": "arxiv",
    "version": 2
  }
}