Pith Number

pith:BA7BRZCG

pith:2014:BA7BRZCGDEDJUQYXRCS2EAUPXB

not attested not anchored not stored refs pending

On the Brauer-Picard group of a finite symmetric tensor category

Costel-Gabriel Bontea, Dmitri Nikshych

arxiv:1408.6445 v2 · 2014-08-27 · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BA7BRZCGDEDJUQYXRCS2EAUPXB}

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	2026-05-18T01:19:14.333778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

083e18e44619069a431788a5a2028fb8737c9c43b6420f5f4fa1eee484b7b47c

Aliases

arxiv: 1408.6445 · arxiv_version: 1408.6445v2 · doi: 10.48550/arxiv.1408.6445 · pith_short_12: BA7BRZCGDEDJ · pith_short_16: BA7BRZCGDEDJUQYX · pith_short_8: BA7BRZCG

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/BA7BRZCGDEDJUQYXRCS2EAUPXB \
  | 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: 083e18e44619069a431788a5a2028fb8737c9c43b6420f5f4fa1eee484b7b47c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "367c2f19f28f44f6587ee2f074017ef479398bf0b11643f2af94467702bc46ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2014-08-27T15:52:00Z",
    "title_canon_sha256": "84b0f934ee524648f8bb5aca172de0b400709c58dd2e7e72a5dfbe7a89e6faac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.6445",
    "kind": "arxiv",
    "version": 2
  }
}