Pith Number

pith:6KUZVQCD

pith:2008:6KUZVQCD3UD2MFFMDBMLNT4PCT

not attested not anchored not stored refs pending

Essential cohomology for elementary abelian p-groups

David J. Green, Fatma Altunbulak Aksu

arxiv:0809.4425 v1 · 2008-09-25 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6KUZVQCD3UD2MFFMDBMLNT4PCT}

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	2026-05-18T02:26:45.812160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2a99ac043dd07a614ac1858b6cf8f14d00e345593ffe4cd39057defbdc412e5

Aliases

arxiv: 0809.4425 · arxiv_version: 0809.4425v1 · doi: 10.48550/arxiv.0809.4425 · pith_short_12: 6KUZVQCD3UD2 · pith_short_16: 6KUZVQCD3UD2MFFM · pith_short_8: 6KUZVQCD

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/6KUZVQCD3UD2MFFMDBMLNT4PCT \
  | 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: f2a99ac043dd07a614ac1858b6cf8f14d00e345593ffe4cd39057defbdc412e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f232ab94346d5fd152008fe462585f99870a1fd4413c5b266c35892e392cec1b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2008-09-25T15:12:06Z",
    "title_canon_sha256": "a05c162d2a35ce093d35d503653e4418801964782c003fe02f299146113c7143"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4425",
    "kind": "arxiv",
    "version": 1
  }
}