Pith Number

pith:BGXEZQEV

pith:2018:BGXEZQEVCSOM2ETW5RXTKINDPG

not attested not anchored not stored refs pending

Cancellative conjugation semigroups and monoids

A. P. Garr\~ao, M. Raposo, M. Sobral, N. Martins-Ferreira

arxiv:1811.07177 v2 · 2018-11-17 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGXEZQEVCSOM2ETW5RXTKINDPG}

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	2026-05-17T23:43:42.863860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09ae4cc095149ccd1276ec6f3521a37999686db4a692571ce8e80b1814dd1736

Aliases

arxiv: 1811.07177 · arxiv_version: 1811.07177v2 · doi: 10.48550/arxiv.1811.07177 · pith_short_12: BGXEZQEVCSOM · pith_short_16: BGXEZQEVCSOM2ETW · pith_short_8: BGXEZQEV

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/BGXEZQEVCSOM2ETW5RXTKINDPG \
  | 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: 09ae4cc095149ccd1276ec6f3521a37999686db4a692571ce8e80b1814dd1736

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bea60fad502900d5eb2ade2410a3cc950c851cac1f148253fca805bc30d1ae1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2018-11-17T15:16:39Z",
    "title_canon_sha256": "3eee4c045f4c72bd980920fa55ec66c10f219fbf7c8d33d276f7eeb09636e0ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07177",
    "kind": "arxiv",
    "version": 2
  }
}