Pith Number

pith:D3XBBZBE

pith:2015:D3XBBZBEAGRGKWFKTQPFRGWVPW

not attested not anchored not stored refs pending

The isomorphism problem for graded algebras and its application to mod-p cohomology rings of small p-groups

Bettina Eick, Simon King

arxiv:1503.04666 v1 · 2015-03-16 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D3XBBZBEAGRGKWFKTQPFRGWVPW}

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	2026-05-18T02:23:24.336778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1eee10e42401a26558aa9c1e589ad57d9520f0baadb8f4c26cba7fc4cc0f135f

Aliases

arxiv: 1503.04666 · arxiv_version: 1503.04666v1 · doi: 10.48550/arxiv.1503.04666 · pith_short_12: D3XBBZBEAGRG · pith_short_16: D3XBBZBEAGRGKWFK · pith_short_8: D3XBBZBE

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/D3XBBZBEAGRGKWFKTQPFRGWVPW \
  | 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: 1eee10e42401a26558aa9c1e589ad57d9520f0baadb8f4c26cba7fc4cc0f135f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd690f294d7247a3dccf60cfb03dd26d261d5987c284791a5f68cdddfbac0506",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-03-16T14:26:52Z",
    "title_canon_sha256": "716f17fb531fd5f1c34f6790118ada4bf9a147f82d6aab9968f6f2327bfe3efd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04666",
    "kind": "arxiv",
    "version": 1
  }
}