Pith Number

pith:IXE66WYZ

pith:2013:IXE66WYZYQPF3W6Z6KS6VCJOHL

not attested not anchored not stored refs pending

Poisson cohomology of two Fano threefolds

Evgeny Mayanskiy

arxiv:1303.5916 v1 · 2013-03-24 · math.AG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IXE66WYZYQPF3W6Z6KS6VCJOHL}

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	2026-05-18T03:30:00.840861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45c9ef5b19c41e5ddbd9f2a5ea892e3ace6d879faa97f8730ad05f779595606e

Aliases

arxiv: 1303.5916 · arxiv_version: 1303.5916v1 · doi: 10.48550/arxiv.1303.5916 · pith_short_12: IXE66WYZYQPF · pith_short_16: IXE66WYZYQPF3W6Z · pith_short_8: IXE66WYZ

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/IXE66WYZYQPF3W6Z6KS6VCJOHL \
  | 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: 45c9ef5b19c41e5ddbd9f2a5ea892e3ace6d879faa97f8730ad05f779595606e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64b88a085a9abc6feeb0809fc9bd629e82f532ea1fea85c577ad9d376bab63cd",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-03-24T05:49:58Z",
    "title_canon_sha256": "2eac58396228593e2433f49f0a1c2645b06b51582a2e5115e1836eb06befa310"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5916",
    "kind": "arxiv",
    "version": 1
  }
}