Pith Number

pith:YFWLACOA

pith:2017:YFWLACOAREO4O6R22UAWEGVRCV

not attested not anchored not stored refs pending

On homological smoothness of generalized Weyl algebras over polynomial algebras in two variables

Liyu Liu

arxiv:1711.05970 v1 · 2017-11-16 · 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{YFWLACOAREO4O6R22UAWEGVRCV}

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	2026-05-18T00:30:23.655118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c16cb009c0891dc77a3ad501621ab1154b56aa2dc38d8518f3da230f606e73b1

Aliases

arxiv: 1711.05970 · arxiv_version: 1711.05970v1 · doi: 10.48550/arxiv.1711.05970 · pith_short_12: YFWLACOAREO4 · pith_short_16: YFWLACOAREO4O6R2 · pith_short_8: YFWLACOA

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/YFWLACOAREO4O6R22UAWEGVRCV \
  | 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: c16cb009c0891dc77a3ad501621ab1154b56aa2dc38d8518f3da230f606e73b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28c54d1ec5c60bf3e94950db0cdddd6ec4a5fa7b953b40600f7374e29c69e9a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2017-11-16T07:53:55Z",
    "title_canon_sha256": "f5085fef3733bc691d4007cbe98b9d08c4f01dcd38d14c2842adaab590bca78d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.05970",
    "kind": "arxiv",
    "version": 1
  }
}