Pith Number

pith:KN2J3QAG

pith:2017:KN2J3QAG3OWEC2CFY5FOHTMLFC

not attested not anchored not stored refs pending

K\"ulshammer ideals of graded categories and Hochschild cohomology

Alexandra Zvonareva, Yury Volkov

arxiv:1705.03113 v1 · 2017-05-08 · math.KT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KN2J3QAG3OWEC2CFY5FOHTMLFC}

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	2026-05-18T00:44:50.684916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53749dc006dbac416845c74ae3cd8b28b060a4d4256fbd06532ecc0a2e686bd3

Aliases

arxiv: 1705.03113 · arxiv_version: 1705.03113v1 · doi: 10.48550/arxiv.1705.03113 · pith_short_12: KN2J3QAG3OWE · pith_short_16: KN2J3QAG3OWEC2CF · pith_short_8: KN2J3QAG

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/KN2J3QAG3OWEC2CFY5FOHTMLFC \
  | 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: 53749dc006dbac416845c74ae3cd8b28b060a4d4256fbd06532ecc0a2e686bd3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "328d6d73270dbdf8fa763a57fa48aada1ad214581acd78f4cb8b221d406a0b9f",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2017-05-08T22:39:55Z",
    "title_canon_sha256": "7c4d5c29fdbca039afb0de11cc426579a2da330feb076f0d070e045073beb4fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03113",
    "kind": "arxiv",
    "version": 1
  }
}