Pith Number

pith:JHVUKU2T

pith:2015:JHVUKU2TIJTUSBKLV25C4KJDYS

not attested not anchored not stored refs pending

Cohomology and Coquasi-bialgebras in the category of Yetter-Drinfeld Modules

Alessandro Ardizzoni, Claudia Menini, Iv\`an Angiono

arxiv:1509.04844 v1 · 2015-09-16 · math.QA · 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{JHVUKU2TIJTUSBKLV25C4KJDYS}

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	2026-05-18T01:32:51.504537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49eb455353426749054baeba2e2923c4bf80c7b133b5a36d9cb56b4d44a77f73

Aliases

arxiv: 1509.04844 · arxiv_version: 1509.04844v1 · doi: 10.48550/arxiv.1509.04844 · pith_short_12: JHVUKU2TIJTU · pith_short_16: JHVUKU2TIJTUSBKL · pith_short_8: JHVUKU2T

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/JHVUKU2TIJTUSBKLV25C4KJDYS \
  | 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: 49eb455353426749054baeba2e2923c4bf80c7b133b5a36d9cb56b4d44a77f73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b08fd76c3c3cfaf057517362e573571781b07a461184ab9ffb799a450478363f",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2015-09-16T07:48:05Z",
    "title_canon_sha256": "28386490a3b194d91c94a691bd111a3f9959433f6abd6273ab8e1e8dfcdf3ab6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04844",
    "kind": "arxiv",
    "version": 1
  }
}