Pith Number

pith:E4W27SPT

pith:2012:E4W27SPTANSH3TGZA4NGH3LZW2

not attested not anchored not stored refs pending

The structure of generalized inverse semigroups

Ganna Kudryavtseva, Mark V. Lawson

arxiv:1207.4296 v1 · 2012-07-18 · math.CT · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4W27SPTANSH3TGZA4NGH3LZW2}

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	2026-05-18T03:50:47.098878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

272dafc9f303647dccd9071a63ed79b69f96287ac1c8c23335b688f2f2052c0b

Aliases

arxiv: 1207.4296 · arxiv_version: 1207.4296v1 · doi: 10.48550/arxiv.1207.4296 · pith_short_12: E4W27SPTANSH · pith_short_16: E4W27SPTANSH3TGZ · pith_short_8: E4W27SPT

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/E4W27SPTANSH3TGZA4NGH3LZW2 \
  | 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: 272dafc9f303647dccd9071a63ed79b69f96287ac1c8c23335b688f2f2052c0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8217b9ae7fef47dd8a2d22b988f592184eebd9b9173b08f93706a89e0e729e95",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2012-07-18T08:11:24Z",
    "title_canon_sha256": "ec4c12ecaf94f6d8ed1346822a260f772539561203c042e83c68a7ef84410e64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4296",
    "kind": "arxiv",
    "version": 1
  }
}