Pith Number

pith:SY4XRWTO

pith:2019:SY4XRWTOVO5PN5SFZQ4TAWQVQH

not attested not anchored not stored refs pending

Cancellation problem for AS-Regular algebras of dimension three

H.J. Venegas Ramirez, J.J. Zhang, X. Tang

arxiv:1904.07281 v2 · 2019-04-15 · 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{SY4XRWTOVO5PN5SFZQ4TAWQVQH}

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	2026-07-05T02:22:03.982253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

963978da6eabbaf6f645cc39305a1581ebf25a3e5b7b0b5506f1f7ae86fcbb95

Aliases

arxiv: 1904.07281 · arxiv_version: 1904.07281v2 · doi: 10.48550/arxiv.1904.07281 · pith_short_12: SY4XRWTOVO5P · pith_short_16: SY4XRWTOVO5PN5SF · pith_short_8: SY4XRWTO

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/SY4XRWTOVO5PN5SFZQ4TAWQVQH \
  | 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: 963978da6eabbaf6f645cc39305a1581ebf25a3e5b7b0b5506f1f7ae86fcbb95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b982109f8f3c135eae6a7d391e18720854bcae1befbf896cbb0126fbc37f589",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-04-15T18:35:07Z",
    "title_canon_sha256": "9188d39b2a4478c7e7a222b2977b364fd2cdeca118a06db7ed1d7ade6816fc1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07281",
    "kind": "arxiv",
    "version": 2
  }
}