Pith Number

pith:DLDSGPOO

pith:2017:DLDSGPOONOGQKX6VWD2RN6NTK6

not attested not anchored not stored refs pending

On feebly compact semitopological symmetric inverse semigroups of a bounded finite rank

Oleg Gutik

arxiv:1708.02064 v2 · 2017-08-04 · math.GR · math.GN

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DLDSGPOONOGQKX6VWD2RN6NTK6}

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	2026-05-18T00:24:52.018247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ac7233dce6b8d055fd5b0f516f9b357a6f6b77a942dab299f581c9830335070

Aliases

arxiv: 1708.02064 · arxiv_version: 1708.02064v2 · doi: 10.48550/arxiv.1708.02064 · pith_short_12: DLDSGPOONOGQ · pith_short_16: DLDSGPOONOGQKX6V · pith_short_8: DLDSGPOO

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/DLDSGPOONOGQKX6VWD2RN6NTK6 \
  | 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: 1ac7233dce6b8d055fd5b0f516f9b357a6f6b77a942dab299f581c9830335070

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30c3da6a665bcc1419c735bfe266987e0e48cabecbb5a296a7b1deac75ef37a3",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-08-04T13:28:45Z",
    "title_canon_sha256": "16910537425e2771dd7dfbf10c07be74377f5c80503ab82685749c5dacb9d016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02064",
    "kind": "arxiv",
    "version": 2
  }
}