Pith Number

pith:RYWFS4T5

pith:2019:RYWFS4T5S47S4XLL6AOOQEMF4L

not attested not anchored not stored refs pending

Classification of multivariate skew polynomial rings over finite fields via affine transformations of variables

Umberto Mart\'inez-Pe\~nas

arxiv:1908.06833 v1 · 2019-08-19 · 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{RYWFS4T5S47S4XLL6AOOQEMF4L}

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	2026-07-04T23:58:19.802296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e2c59727d973f2e5d6bf01ce81185e2ef116f7774dff372d310889d07b23773

Aliases

arxiv: 1908.06833 · arxiv_version: 1908.06833v1 · doi: 10.48550/arxiv.1908.06833 · pith_short_12: RYWFS4T5S47S · pith_short_16: RYWFS4T5S47S4XLL · pith_short_8: RYWFS4T5

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/RYWFS4T5S47S4XLL6AOOQEMF4L \
  | 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: 8e2c59727d973f2e5d6bf01ce81185e2ef116f7774dff372d310889d07b23773

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "334e3a78a6dfd6a792f3af816179d422bdef1f5578aad9c8067d1571bd11b6ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-08-19T14:34:41Z",
    "title_canon_sha256": "b36a2924e42e545d1c9d1f28c63b61dfbc5dd24e6e115be005e0277d3e631dd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06833",
    "kind": "arxiv",
    "version": 1
  }
}