Pith Number

pith:JSLYJY3M

pith:2014:JSLYJY3MZJZTU2HOPU3JIDKFAM

not attested not anchored not stored refs pending

On closures in semitopological inverse semigroups with continuous inversion

Oleg Gutik

arxiv:1410.1344 v1 · 2014-10-06 · 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{JSLYJY3MZJZTU2HOPU3JIDKFAM}

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	2026-05-18T02:41:02.272866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c9784e36cca733a68ee7d36940d45031ac875765fbe9e5bab1ecc9627a755ee

Aliases

arxiv: 1410.1344 · arxiv_version: 1410.1344v1 · doi: 10.48550/arxiv.1410.1344 · pith_short_12: JSLYJY3MZJZT · pith_short_16: JSLYJY3MZJZTU2HO · pith_short_8: JSLYJY3M

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/JSLYJY3MZJZTU2HOPU3JIDKFAM \
  | 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: 4c9784e36cca733a68ee7d36940d45031ac875765fbe9e5bab1ecc9627a755ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9f53b7b87bdc5d91904d19042854697162f21d2f0826c85e515440a0c71f0d8",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-10-06T12:29:03Z",
    "title_canon_sha256": "c069f4643c642f174d3a174cea036a6616a4d5aeea1072b7d280d1327021f68c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.1344",
    "kind": "arxiv",
    "version": 1
  }
}