Pith Number

pith:QWW2QNK4

pith:2019:QWW2QNK4DZOFQMN6B4RN2G7HXO

not attested not anchored not stored refs pending

Central polynomials with involution for the algebra of $2\times 2$ upper triangular matrices

Dimas Jos\'e Gon\c{c}alves, Ronald Ismael Quispe Urure

arxiv:1902.01891 v1 · 2019-02-05 · 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{QWW2QNK4DZOFQMN6B4RN2G7HXO}

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	2026-05-17T23:54:38.505200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85ada8355c1e5c5831be0f22dd1be7bb9d5cb8549a08a9dcc2ba77458300cb03

Aliases

arxiv: 1902.01891 · arxiv_version: 1902.01891v1 · doi: 10.48550/arxiv.1902.01891 · pith_short_12: QWW2QNK4DZOF · pith_short_16: QWW2QNK4DZOFQMN6 · pith_short_8: QWW2QNK4

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/QWW2QNK4DZOFQMN6B4RN2G7HXO \
  | 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: 85ada8355c1e5c5831be0f22dd1be7bb9d5cb8549a08a9dcc2ba77458300cb03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebe7acbd82d785b3dc324b259b69f57215b058c32fc93635f03621d79dbb65fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-02-05T20:07:59Z",
    "title_canon_sha256": "68360836e397842df6bf491a75d6e7700f9b7937a767efbbf97c83c22eccd0ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01891",
    "kind": "arxiv",
    "version": 1
  }
}