Pith Number

pith:ZIIETQ7N

pith:2012:ZIIETQ7N3KGG2Q7IPOI3UOT7WG

not attested not anchored not stored refs pending

Unramified Brauer group of the moduli spaces of $PGL_r({\mathbb C})$-bundles over curves

Amit Hogadi, Indranil Biswas, Yogish I. Holla

arxiv:1205.3667 v2 · 2012-05-16 · 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{ZIIETQ7N3KGG2Q7IPOI3UOT7WG}

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	2026-05-18T03:54:05.543482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca1049c3edda8c6d43e87b91ba3a7fb1a2f438b9770e45c0276cef3067ac6ce5

Aliases

arxiv: 1205.3667 · arxiv_version: 1205.3667v2 · doi: 10.48550/arxiv.1205.3667 · pith_short_12: ZIIETQ7N3KGG · pith_short_16: ZIIETQ7N3KGG2Q7I · pith_short_8: ZIIETQ7N

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/ZIIETQ7N3KGG2Q7IPOI3UOT7WG \
  | 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: ca1049c3edda8c6d43e87b91ba3a7fb1a2f438b9770e45c0276cef3067ac6ce5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2752c1670ea1b5ec13ed851eadc1205919d466e0f8e567712c5b12c01289897f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-05-16T13:10:57Z",
    "title_canon_sha256": "fdf9e04f2241496809cd85e7e28a219593cffee273abf60ba5f2042b7fe1a5c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3667",
    "kind": "arxiv",
    "version": 2
  }
}