Pith Number

pith:5OPWTJ7I

pith:2019:5OPWTJ7IRO3L2UDNZL5DHCAZ34

not attested not anchored not stored refs pending

A new algorithm for computing idempotents of R-trivial monoids

Bob Rink, Eddie Nijholt, S\"oren Schwenker

arxiv:1906.02844 v1 · 2019-06-06 · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5OPWTJ7IRO3L2UDNZL5DHCAZ34}

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	2026-05-17T23:43:57.324275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb9f69a7e88bb6bd506dcafa338819df2bedd79fc022447993db2af19d525f01

Aliases

arxiv: 1906.02844 · arxiv_version: 1906.02844v1 · doi: 10.48550/arxiv.1906.02844 · pith_short_12: 5OPWTJ7IRO3L · pith_short_16: 5OPWTJ7IRO3L2UDN · pith_short_8: 5OPWTJ7I

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/5OPWTJ7IRO3L2UDNZL5DHCAZ34 \
  | 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: eb9f69a7e88bb6bd506dcafa338819df2bedd79fc022447993db2af19d525f01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a01220ec2964d3f75b717c90f5f9926bd7387b56a27ac6ceb77e02800853c178",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2019-06-06T23:58:29Z",
    "title_canon_sha256": "74c678ff765443232fd0b5212970f4af24ac4e42c0a6be4f71be28dc37370d6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02844",
    "kind": "arxiv",
    "version": 1
  }
}