Pith Number

pith:QNDI3RHK

pith:2013:QNDI3RHKLY5TNRRJ3677ZWL764

not attested not anchored not stored refs pending

Pseudocompact primitive topological inverse semigroups

Kateryna Pavlyk, Oleg Gutik

arxiv:1306.2612 v3 · 2013-06-11 · 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{QNDI3RHKLY5TNRRJ3677ZWL764}

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	2026-05-18T03:09:48.198466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83468dc4ea5e3b36c629dfbffcd97ff710adec11ff5d51c3f10b8ac8586c834d

Aliases

arxiv: 1306.2612 · arxiv_version: 1306.2612v3 · doi: 10.48550/arxiv.1306.2612 · pith_short_12: QNDI3RHKLY5T · pith_short_16: QNDI3RHKLY5TNRRJ · pith_short_8: QNDI3RHK

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/QNDI3RHKLY5TNRRJ3677ZWL764 \
  | 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: 83468dc4ea5e3b36c629dfbffcd97ff710adec11ff5d51c3f10b8ac8586c834d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81d2db1a7f488157289851323640e9a8a9e866ba1d2c05bb9a8eb0ade04bd896",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2013-06-11T19:09:53Z",
    "title_canon_sha256": "47f4066328046d0873afe9028f3e509023306e3d73d916ce3e68cae0fabc5f6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2612",
    "kind": "arxiv",
    "version": 3
  }
}