Pith Number

pith:XZWRE4LZ

pith:2012:XZWRE4LZDN53UXYRYFXBMP5OPB

not attested not anchored not stored refs pending

Curvature of scalar-flat Kahler metrics on non-compact symplectic toric 4-manifolds

Rosa Sena-Dias

arxiv:1207.5495 v1 · 2012-07-23 · math.DG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZWRE4LZDN53UXYRYFXBMP5OPB}

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	2026-05-18T03:50:23.297609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be6d1271791b7bba5f11c16e163fae784173e471562bbde08fd00942060a31b3

Aliases

arxiv: 1207.5495 · arxiv_version: 1207.5495v1 · doi: 10.48550/arxiv.1207.5495 · pith_short_12: XZWRE4LZDN53 · pith_short_16: XZWRE4LZDN53UXYR · pith_short_8: XZWRE4LZ

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/XZWRE4LZDN53UXYRYFXBMP5OPB \
  | 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: be6d1271791b7bba5f11c16e163fae784173e471562bbde08fd00942060a31b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf75d57a399ba6c021d3d8eb7e082b11a26605d40f2478d16f002aea37f0b002",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-07-23T19:36:34Z",
    "title_canon_sha256": "9408afa2f18b502ba60c7a0069a11c058187032431604750bbfca637959dacde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5495",
    "kind": "arxiv",
    "version": 1
  }
}