Pith Number

pith:G7GAFXNO

pith:2009:G7GAFXNOXSJG22Q36HI2SWBRO7

not attested not anchored not stored refs pending

Scalar-flat Kahler metrics on non-compact symplectic toric 4-manifolds

Miguel Abreu, Rosa Sena-Dias

arxiv:0910.5466 v3 · 2009-10-28 · 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{G7GAFXNOXSJG22Q36HI2SWBRO7}

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	2026-05-18T04:24:04.781128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37cc02ddaebc926d6a1bf1d1a9583177eac7ad8d016558a5e634170498d7ab7e

Aliases

arxiv: 0910.5466 · arxiv_version: 0910.5466v3 · doi: 10.48550/arxiv.0910.5466 · pith_short_12: G7GAFXNOXSJG · pith_short_16: G7GAFXNOXSJG22Q3 · pith_short_8: G7GAFXNO

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/G7GAFXNOXSJG22Q36HI2SWBRO7 \
  | 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: 37cc02ddaebc926d6a1bf1d1a9583177eac7ad8d016558a5e634170498d7ab7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35e9ff08109ba421775ee5db19d925ba43d67aad6fe26508b201d51ff699de4c",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-10-28T19:36:32Z",
    "title_canon_sha256": "e31994bf0b731c79d4d57df2b768304495860606e8a58c62e70e94ca72676f5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5466",
    "kind": "arxiv",
    "version": 3
  }
}