Pith Number

pith:I5SJ7N3C

pith:2013:I5SJ7N3CEGSUUBPXMBYKCRYAMO

not attested not anchored not stored refs pending

PBW deformations of Koszul algebras over a nonsemisimple ring

Fred van Oystaeyen, Jiwei He, Yinhuo Zhang

arxiv:1312.2456 v3 · 2013-12-09 · 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{I5SJ7N3CEGSUUBPXMBYKCRYAMO}

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	2026-05-18T02:43:52.303621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47649fb76221a54a05f76070a14700638a179c444331c953b1ebac1fc1fd4f42

Aliases

arxiv: 1312.2456 · arxiv_version: 1312.2456v3 · doi: 10.48550/arxiv.1312.2456 · pith_short_12: I5SJ7N3CEGSU · pith_short_16: I5SJ7N3CEGSUUBPX · pith_short_8: I5SJ7N3C

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/I5SJ7N3CEGSUUBPXMBYKCRYAMO \
  | 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: 47649fb76221a54a05f76070a14700638a179c444331c953b1ebac1fc1fd4f42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a733cb159bd30853ae2e807dac39f4e26e6e05e6d42442311e0835264cc07095",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2013-12-09T15:05:56Z",
    "title_canon_sha256": "11e12d01f739f73ba15046ca82f850726569dd0e51ac55897b4b73c295ada08b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2456",
    "kind": "arxiv",
    "version": 3
  }
}