Pith Number

pith:WXE52F3P

pith:2014:WXE52F3PXSPIVXQ2JGHHH73CW4

not attested not anchored not stored refs pending

Module and Hochschild cohomology of certain semigroup algebras

A. Pourabbas, A. Shirinkalam, M. Amini

arxiv:1412.4978 v2 · 2014-12-16 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WXE52F3PXSPIVXQ2JGHHH73CW4}

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	2026-05-18T02:31:03.518719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5c9dd176fbc9e8ade1a498e73ff62b716fea88c461a699e7687446895877000

Aliases

arxiv: 1412.4978 · arxiv_version: 1412.4978v2 · doi: 10.48550/arxiv.1412.4978 · pith_short_12: WXE52F3PXSPI · pith_short_16: WXE52F3PXSPIVXQ2 · pith_short_8: WXE52F3P

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/WXE52F3PXSPIVXQ2JGHHH73CW4 \
  | 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: b5c9dd176fbc9e8ade1a498e73ff62b716fea88c461a699e7687446895877000

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78be13d4f72212c4418201fc471ead7b8e9f27a128819cf28912d13d13e4d1f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2014-12-16T12:35:46Z",
    "title_canon_sha256": "9241b647e0c9c4c8f8d61ac5636459e1b3ec9ce4e849c7bcf76fad5bdbe7ff67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.4978",
    "kind": "arxiv",
    "version": 2
  }
}