Pith Number

pith:25KQSC4P

pith:2019:25KQSC4PLLPTB3LGN3S3X3TP2C

not attested not anchored not stored refs pending

On Cores in Yetter-Drinfel'd Hopf Algebras

Yevgenia Kashina, Yorck Sommerhaeuser

arxiv:1908.07620 v1 · 2019-08-20 · math.RA · math.QA · 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{25KQSC4PLLPTB3LGN3S3X3TP2C}

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	2026-07-05T03:43:15.605298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d755090b8f5adf30ed666ee5bbee6fd0b0c544372b8ea86d4770893d3bc03cd6

Aliases

arxiv: 1908.07620 · arxiv_version: 1908.07620v1 · doi: 10.48550/arxiv.1908.07620 · pith_short_12: 25KQSC4PLLPT · pith_short_16: 25KQSC4PLLPTB3LG · pith_short_8: 25KQSC4P

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/25KQSC4PLLPTB3LGN3S3X3TP2C \
  | 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: d755090b8f5adf30ed666ee5bbee6fd0b0c544372b8ea86d4770893d3bc03cd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c787d9c200bd6cbd5ff5e8402f82545d1a662d492e2b7bd409d065234954cb74",
    "cross_cats_sorted": [
      "math.QA",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-08-20T21:39:59Z",
    "title_canon_sha256": "f0f9e540b5af8174a48b4a38d309691ee851a95a425ff7f7475d2f9b656a2d5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07620",
    "kind": "arxiv",
    "version": 1
  }
}