Pith Number

pith:PLT65URF

pith:2018:PLT65URFACG3TXC55BJ2FU7CRE

not attested not anchored not stored refs pending

Center of skew PBW extensions

Helbert Javier Venegas Ram\'irez, Jos\'e Oswaldo Lezama Serrano

arxiv:1804.05425 v4 · 2018-04-15 · 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{PLT65URFACG3TXC55BJ2FU7CRE}

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.

Cited by

1 paper in Pith

Some open problems in the context of skew PBW extensions and semi-graded rings

Receipt and verification

First computed	2026-05-18T00:10:37.908949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ae7eed225008db9dc5de853a2d3e28938eb9ba5bcf697354f76133a52621dff

Aliases

arxiv: 1804.05425 · arxiv_version: 1804.05425v4 · doi: 10.48550/arxiv.1804.05425 · pith_short_12: PLT65URFACG3 · pith_short_16: PLT65URFACG3TXC5 · pith_short_8: PLT65URF

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/PLT65URFACG3TXC55BJ2FU7CRE \
  | 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: 7ae7eed225008db9dc5de853a2d3e28938eb9ba5bcf697354f76133a52621dff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22840af1d627764f9855b4ff53b43b16f459de44a7959257c53eb67d4a09d9dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2018-04-15T20:46:20Z",
    "title_canon_sha256": "01251fa6282d85383b6655776cdaf12aaca15b8c507cbf8dda66b3a71458451f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05425",
    "kind": "arxiv",
    "version": 4
  }
}