Pith Number

pith:FTFE6XE3

pith:2014:FTFE6XE3B2XKOWKS4ABSCW7K6Q

not attested not anchored not stored refs pending

On the Hochschild cohomology ring of the quaternion group of order eight in characteristic two

Alexander Ivanov, Guodong Zhou, Sergei O. Ivanov, Yury Volkov

arxiv:1407.4341 v1 · 2014-07-16 · math.KT · 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{FTFE6XE3B2XKOWKS4ABSCW7K6Q}

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	2026-05-18T02:47:30.660378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cca4f5c9b0eaea75952e003215beaf40d386ada3f28af62cb461549336245b7

Aliases

arxiv: 1407.4341 · arxiv_version: 1407.4341v1 · doi: 10.48550/arxiv.1407.4341 · pith_short_12: FTFE6XE3B2XK · pith_short_16: FTFE6XE3B2XKOWKS · pith_short_8: FTFE6XE3

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/FTFE6XE3B2XKOWKS4ABSCW7K6Q \
  | 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: 2cca4f5c9b0eaea75952e003215beaf40d386ada3f28af62cb461549336245b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91f3bbf74f10df56ca3ed1f24f90104012b46f310368d0bb489d228bf3571512",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2014-07-16T15:23:27Z",
    "title_canon_sha256": "21abc515c4f72930f2aed94277138bb4966ec90b2f5979cb7311a3ff5c26c1bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4341",
    "kind": "arxiv",
    "version": 1
  }
}