Pith Number

pith:22YRCI32

pith:2009:22YRCI32DDYCKTAOERI65MBRPB

not attested not anchored not stored refs pending

A Note on Values of Noncommutative Polynomials

Igor Klep, Matej Bresar

arxiv:0909.2640 v1 · 2009-09-14 · math.OA · 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{22YRCI32DDYCKTAOERI65MBRPB}

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	2026-05-18T04:24:06.396736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6b111237a18f0254c0e2451eeb0317860556a1b9b162ca2d862826750156efa

Aliases

arxiv: 0909.2640 · arxiv_version: 0909.2640v1 · doi: 10.48550/arxiv.0909.2640 · pith_short_12: 22YRCI32DDYC · pith_short_16: 22YRCI32DDYCKTAO · pith_short_8: 22YRCI32

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/22YRCI32DDYCKTAOERI65MBRPB \
  | 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: d6b111237a18f0254c0e2451eeb0317860556a1b9b162ca2d862826750156efa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e522b220af0431de579d0299a984fa95bb45b59190de0fa1e47aecd4d23f4f6d",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2009-09-14T20:03:02Z",
    "title_canon_sha256": "342c21fe4830e0059fac4ecbae2a83b91c748f43aafd05eaea16cc34bf40950c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2640",
    "kind": "arxiv",
    "version": 1
  }
}