Pith Number

pith:NNNPGL2J

pith:2007:NNNPGL2JDC3FMBBDGUHPEQJEAA

not attested not anchored not stored refs pending

Numerical Kaehler-Einstein metric on the third del Pezzo

C. Doran, C. P. Herzog, J. Kantor, M. Headrick, T. Wiseman

arxiv:hep-th/0703057 v2 · 2007-03-07 · 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{NNNPGL2JDC3FMBBDGUHPEQJEAA}

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	2026-07-04T15:31:45.341247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b5af32f4918b6560423350ef2412400151fa7f7d8689d326a779ffb21d82696

Aliases

arxiv: hep-th/0703057 · arxiv_version: hep-th/0703057v2 · doi: 10.48550/arxiv.hep-th/0703057 · pith_short_12: NNNPGL2JDC3F · pith_short_16: NNNPGL2JDC3FMBBD · pith_short_8: NNNPGL2J

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/NNNPGL2JDC3FMBBDGUHPEQJEAA \
  | 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: 6b5af32f4918b6560423350ef2412400151fa7f7d8689d326a779ffb21d82696

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "227a99364655b2228c206bc1b8c1b69460e84756f96ec7e0108a2a790cd2cadb",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2007-03-07T02:45:49Z",
    "title_canon_sha256": "735a5efacff1dad814b698eb697670fb59bde5a81a5b536ef38fc922d027cb28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0703057",
    "kind": "arxiv",
    "version": 2
  }
}