Pith Number

pith:UJ6Z6Q4Q

pith:2010:UJ6Z6Q4QD2NI3M7AGNHM6UJQAZ

not attested not anchored not stored refs pending

Alternated Hochschild Cohomology

Pierre B.A. Lecomte, Valentin Ovsienko (ICJ)

arxiv:1012.3885 v2 · 2010-12-17 · math.RA · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJ6Z6Q4QD2NI3M7AGNHM6UJQAZ}

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	2026-05-18T04:11:17.938327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a27d9f43901e9a8db3e0334ecf513006751d7c8ea77069baca68ae4c8a5421b1

Aliases

arxiv: 1012.3885 · arxiv_version: 1012.3885v2 · doi: 10.48550/arxiv.1012.3885 · pith_short_12: UJ6Z6Q4QD2NI · pith_short_16: UJ6Z6Q4QD2NI3M7A · pith_short_8: UJ6Z6Q4Q

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/UJ6Z6Q4QD2NI3M7AGNHM6UJQAZ \
  | 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: a27d9f43901e9a8db3e0334ecf513006751d7c8ea77069baca68ae4c8a5421b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfda9947f004c9c21789e37c3b0bbbf73a49588b09b9d23e5ee266e7013983e6",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2010-12-17T14:18:46Z",
    "title_canon_sha256": "b1188785ad89311c42f41d60112ebae5185b781b1d214f261b6db1acc1848c11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.3885",
    "kind": "arxiv",
    "version": 2
  }
}