Pith Number

pith:N2WKHWU2

pith:2011:N2WKHWU2XUYO6FIOUT6NQZJGM6

not attested not anchored not stored refs pending

Bushy pseudocharacters and group actions on quasi-trees

\'Alvaro Mart\'inez-P\'erez

arxiv:1104.0790 v1 · 2011-04-05 · 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{N2WKHWU2XUYO6FIOUT6NQZJGM6}

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	2026-05-18T02:22:11.018773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6eaca3da9abd30ef150ea4fcd8652667b601ec4a5b21b78bd873efcc5b9c1427

Aliases

arxiv: 1104.0790 · arxiv_version: 1104.0790v1 · doi: 10.48550/arxiv.1104.0790 · pith_short_12: N2WKHWU2XUYO · pith_short_16: N2WKHWU2XUYO6FIO · pith_short_8: N2WKHWU2

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/N2WKHWU2XUYO6FIOUT6NQZJGM6 \
  | 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: 6eaca3da9abd30ef150ea4fcd8652667b601ec4a5b21b78bd873efcc5b9c1427

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a33c28341634d4db484c28e44f2037f87481d596cac2321ce06e87923cd820d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2011-04-05T09:47:22Z",
    "title_canon_sha256": "ee1f1d49484bbd916d3878766522629c8e3b5ffdc0000547ac010fd02178bacc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.0790",
    "kind": "arxiv",
    "version": 1
  }
}