Pith Number

pith:7IVSMIUQ

pith:2016:7IVSMIUQGHROVWRSPMSJQZOXGP

not attested not anchored not stored refs pending

Differential smoothness of skew polynomial rings

Christian Lomp, Tomasz Brzezi\'nski

arxiv:1609.04055 v1 · 2016-09-13 · math.RA · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7IVSMIUQGHROVWRSPMSJQZOXGP}

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	2026-05-18T01:04:40.785816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa2b26229031e2eada327b249865d733fb5d7cbfaa9cebd8c95ba96114d13517

Aliases

arxiv: 1609.04055 · arxiv_version: 1609.04055v1 · doi: 10.48550/arxiv.1609.04055 · pith_short_12: 7IVSMIUQGHRO · pith_short_16: 7IVSMIUQGHROVWRS · pith_short_8: 7IVSMIUQ

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/7IVSMIUQGHROVWRSPMSJQZOXGP \
  | 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: fa2b26229031e2eada327b249865d733fb5d7cbfaa9cebd8c95ba96114d13517

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4ce4bfbbca57e6141a3e10ec92e817ef7ea0fd3000222fedad30619bf94cc10",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2016-09-13T21:10:31Z",
    "title_canon_sha256": "0bf9ddf7fa08633c12b00edd4ba16df70a052c69b5f9e199914c563efdf97a05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.04055",
    "kind": "arxiv",
    "version": 1
  }
}