Pith Number

pith:D22XTJY4

pith:2008:D22XTJY4IP4RPALNH5J2KHUDI3

not attested not anchored not stored refs pending

Blow-up of generalized complex 4-manifolds

Gil R. Cavalcanti, Marco Gualtieri

arxiv:0806.0872 v2 · 2008-06-05 · math.SG · hep-th · 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{D22XTJY4IP4RPALNH5J2KHUDI3}

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	2026-05-18T03:15:44.184736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1eb579a71c43f917816d3f53a51e8346d6cb2eb31e42d87641ec66bb1ec35666

Aliases

arxiv: 0806.0872 · arxiv_version: 0806.0872v2 · doi: 10.48550/arxiv.0806.0872 · pith_short_12: D22XTJY4IP4R · pith_short_16: D22XTJY4IP4RPALN · pith_short_8: D22XTJY4

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/D22XTJY4IP4RPALNH5J2KHUDI3 \
  | 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: 1eb579a71c43f917816d3f53a51e8346d6cb2eb31e42d87641ec66bb1ec35666

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ae6fd85dcea3653e42e0594ea7ae525091421d1cbe78e4d344c2fc5ac77c72a",
    "cross_cats_sorted": [
      "hep-th",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2008-06-05T09:43:32Z",
    "title_canon_sha256": "422fa0ba9c919188bfabfdb893a5db4e78fedacb54caae157014ead4666f16f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.0872",
    "kind": "arxiv",
    "version": 2
  }
}