Pith Number

pith:OYJHQYMM

pith:2012:OYJHQYMMBBCFTG5OSRNM4CO7KK

not attested not anchored not stored refs pending

The Calabi-Yau equation for $T^2$-bundles over $\mathbb{T}^2$: the non-Lagrangian case

Anna Fino, Ernesto Buzano, Luigi Vezzoni

arxiv:1201.2846 v2 · 2012-01-13 · 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{OYJHQYMMBBCFTG5OSRNM4CO7KK}

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	2026-05-18T03:59:37.868366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

761278618c0844599bae945ace09df52a85e4a7eb46b7d0a753ccc3a776769e7

Aliases

arxiv: 1201.2846 · arxiv_version: 1201.2846v2 · doi: 10.48550/arxiv.1201.2846 · pith_short_12: OYJHQYMMBBCF · pith_short_16: OYJHQYMMBBCFTG5O · pith_short_8: OYJHQYMM

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/OYJHQYMMBBCFTG5OSRNM4CO7KK \
  | 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: 761278618c0844599bae945ace09df52a85e4a7eb46b7d0a753ccc3a776769e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60bcb5791d8e9b22adf217f442dff53d4e73f78c40eda34ce9eca794c7a68051",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-01-13T14:21:04Z",
    "title_canon_sha256": "fd598885a9bd33812500b6de71d3ada38a023fb71d30a78070aeb518ecb9dbda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2846",
    "kind": "arxiv",
    "version": 2
  }
}