Pith Number

pith:XGR6UCSH

pith:2013:XGR6UCSHS3SMKEJKJBATEY6NES

not attested not anchored not stored refs pending

Maximal subgroups of amalgams of finite inverse semigroups

Alessandra Cherubini, Emanuele Rodaro, Tatiana B. Jajcayova

arxiv:1309.5980 v1 · 2013-09-23 · 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{XGR6UCSHS3SMKEJKJBATEY6NES}

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	2026-05-18T02:52:41.877702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9a3ea0a4796e4c5112a48413263cd24acac51911d2abf898ac9adcf010ded75

Aliases

arxiv: 1309.5980 · arxiv_version: 1309.5980v1 · doi: 10.48550/arxiv.1309.5980 · pith_short_12: XGR6UCSHS3SM · pith_short_16: XGR6UCSHS3SMKEJK · pith_short_8: XGR6UCSH

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/XGR6UCSHS3SMKEJKJBATEY6NES \
  | 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: b9a3ea0a4796e4c5112a48413263cd24acac51911d2abf898ac9adcf010ded75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "313641f884707accf2beece3bf336e4bf8fe59a9b08bae9d2e67d2a6baf7ab52",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2013-09-23T20:47:56Z",
    "title_canon_sha256": "309271bd981a79ef10bf5aa1d8cde65864a55e6ce7b0dad42f9d6343a7c6839a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5980",
    "kind": "arxiv",
    "version": 1
  }
}