Pith Number

pith:TSWWEH3J

pith:2013:TSWWEH3JEPWTXW2SYRSQLMTM5C

not attested not anchored not stored refs pending

On the Brauer group of the product of a torus and a semisimple algebraic group

Nikita Semenov, Stefan Gille

arxiv:1303.5344 v1 · 2013-03-21 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TSWWEH3JEPWTXW2SYRSQLMTM5C}

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	2026-05-18T03:30:13.115916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cad621f6923ed3bdb52c46505b26ce88ae0223d2b5cc910bc6f6d4102049312

Aliases

arxiv: 1303.5344 · arxiv_version: 1303.5344v1 · doi: 10.48550/arxiv.1303.5344 · pith_short_12: TSWWEH3JEPWT · pith_short_16: TSWWEH3JEPWTXW2S · pith_short_8: TSWWEH3J

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/TSWWEH3JEPWTXW2SYRSQLMTM5C \
  | 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: 9cad621f6923ed3bdb52c46505b26ce88ae0223d2b5cc910bc6f6d4102049312

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6680923020c4628db500745d8ccba4b3a6db458f10746cacd71c5732c19b623c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-03-21T17:46:57Z",
    "title_canon_sha256": "e8d40d81d9510bec0f19dca8a2f0a0d8d7e8686c6e46880f3906b68b3582a56e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5344",
    "kind": "arxiv",
    "version": 1
  }
}