Pith Number

pith:HM2JBR6C

pith:2017:HM2JBR6CWFDNH7LXNVSVMWFRJH

not attested not anchored not stored refs pending

Three natural subgroups of the Brauer-Picard group of a Hopf algebra with applications

Jan Priel, Simon D. Lentner

arxiv:1702.05133 v1 · 2017-02-16 · math.QA · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HM2JBR6CWFDNH7LXNVSVMWFRJH}

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	2026-05-18T00:50:34.773795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b3490c7c2b146d3fd776d655658b149e62c04e6cba6dcae4c860ae72d5398c8

Aliases

arxiv: 1702.05133 · arxiv_version: 1702.05133v1 · doi: 10.48550/arxiv.1702.05133 · pith_short_12: HM2JBR6CWFDN · pith_short_16: HM2JBR6CWFDNH7LX · pith_short_8: HM2JBR6C

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/HM2JBR6CWFDNH7LXNVSVMWFRJH \
  | 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: 3b3490c7c2b146d3fd776d655658b149e62c04e6cba6dcae4c860ae72d5398c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40670f968220b5d7f96ea0f7d3b54e7a9f16140956a26b0c9978732e8b8479f3",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2017-02-16T19:56:24Z",
    "title_canon_sha256": "c3cce7cb0a916075b247db6ac3a44e65ca92e19807a9e5f19723a9af73f0637b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05133",
    "kind": "arxiv",
    "version": 1
  }
}