Pith Number

pith:YPMDXN4U

pith:2013:YPMDXN4UYRP32445Y3GLQY25OC

not attested not anchored not stored refs pending

Local rings of embedding codepth at most 3 have only trivial semidualizing complexes

Saeed Nasseh, Sean Sather-Wagstaff

arxiv:1401.0210 v1 · 2013-12-31 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YPMDXN4UYRP32445Y3GLQY25OC}

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	2026-05-18T03:03:23.765236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3d83bb794c45fbd739dc6ccb8635d70a0374e29718afb4e5b819fa0f92b06aa

Aliases

arxiv: 1401.0210 · arxiv_version: 1401.0210v1 · doi: 10.48550/arxiv.1401.0210 · pith_short_12: YPMDXN4UYRP3 · pith_short_16: YPMDXN4UYRP32445 · pith_short_8: YPMDXN4U

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/YPMDXN4UYRP32445Y3GLQY25OC \
  | 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: c3d83bb794c45fbd739dc6ccb8635d70a0374e29718afb4e5b819fa0f92b06aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c021cedceee39b0c9fc384ef4482fcfc1cee9d15d9f47c6f97ed08a9482227db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-12-31T19:48:07Z",
    "title_canon_sha256": "7f8e0a1d9f87020d1d7bf6611575babaaaec3b777465f3e60a9f28eadeed9206"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0210",
    "kind": "arxiv",
    "version": 1
  }
}