Pith Number

pith:L3Q5XMRD

pith:2008:L3Q5XMRDGFZERWKA2EWUEZGDEM

not attested not anchored not stored refs pending

Unramified cohomology of finite groups of Lie type

Fedor Bogomolov, Tihomir Petrov, Yuri Tschinkel

arxiv:0812.0615 v1 · 2008-12-02 · 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{L3Q5XMRDGFZERWKA2EWUEZGDEM}

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	2026-05-18T02:24:56.758894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ee1dbb223317248d940d12d4264c32320966fb73ef8884ce70a3c5b749f94d0

Aliases

arxiv: 0812.0615 · arxiv_version: 0812.0615v1 · doi: 10.48550/arxiv.0812.0615 · pith_short_12: L3Q5XMRDGFZE · pith_short_16: L3Q5XMRDGFZERWKA · pith_short_8: L3Q5XMRD

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/L3Q5XMRDGFZERWKA2EWUEZGDEM \
  | 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: 5ee1dbb223317248d940d12d4264c32320966fb73ef8884ce70a3c5b749f94d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89b2e0c21ba11004a6f9f3418882552350a0696c1f7a94ef59c2dbfc8edf6655",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-12-02T23:00:18Z",
    "title_canon_sha256": "acc99dafa8312efb926569ef9e213031a3f4e3496451de5c5d0ebaa82ecc6b7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.0615",
    "kind": "arxiv",
    "version": 1
  }
}