Pith Number

pith:OHZ5BCUJ

pith:2003:OHZ5BCUJ7VMR7GOZNYJLVWO7BW

not attested not anchored not stored refs pending

Hochschild cohomology of the Weyl algebra and traces in deformation quantization

Boris Feigin (Landau Institute), Boris Shoikhet (ETH Zurich), Giovanni Felder (ETH Zurich)

arxiv:math/0311303 v2 · 2003-11-18 · 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{OHZ5BCUJ7VMR7GOZNYJLVWO7BW}

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	2026-07-04T15:07:07.364196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71f3d08a89fd591f99d96e12bad9df0da7a11760d22035487753a545193fcf30

Aliases

arxiv: math/0311303 · arxiv_version: math/0311303v2 · doi: 10.48550/arxiv.math/0311303 · pith_short_12: OHZ5BCUJ7VMR · pith_short_16: OHZ5BCUJ7VMR7GOZ · pith_short_8: OHZ5BCUJ

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/OHZ5BCUJ7VMR7GOZNYJLVWO7BW \
  | 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: 71f3d08a89fd591f99d96e12bad9df0da7a11760d22035487753a545193fcf30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27bff5364b2039130f849f6bdf1399c6231b931d792f27e0d5b6077bca29eb68",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.QA",
    "submitted_at": "2003-11-18T10:04:08Z",
    "title_canon_sha256": "35bd0d13a81e53ecf7b2ab59415ceca5e5b949c58bcea34883780a0b32ad5548"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0311303",
    "kind": "arxiv",
    "version": 2
  }
}