Pith Number

pith:2GQYMVC2

pith:2017:2GQYMVC2SEMEUFK4RVPLN75KBL

not attested not anchored not stored refs pending

On the classification of Kahler-Ricci solitons on Gorenstein del Pezzo surfaces

Hendrik S\"u{\ss}, Jacob Cable

arxiv:1705.02920 v2 · 2017-05-08 · math.AG · 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{2GQYMVC2SEMEUFK4RVPLN75KBL}

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	2026-05-18T00:21:35.036914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1a186545a91184a155c8d5eb6ffaa0ac67bb6f1db64fa31a24bc2bb70dc17bf

Aliases

arxiv: 1705.02920 · arxiv_version: 1705.02920v2 · doi: 10.48550/arxiv.1705.02920 · pith_short_12: 2GQYMVC2SEME · pith_short_16: 2GQYMVC2SEMEUFK4 · pith_short_8: 2GQYMVC2

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/2GQYMVC2SEMEUFK4RVPLN75KBL \
  | 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: d1a186545a91184a155c8d5eb6ffaa0ac67bb6f1db64fa31a24bc2bb70dc17bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57b23289f644a0620aa394cc865b713c1fb94a2309393b63a4ad05c330a03a23",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-05-08T15:33:33Z",
    "title_canon_sha256": "63a8b3dba83778598d86ba702e7b9b23b25a4464ec2a94f20ea67d4e992299c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.02920",
    "kind": "arxiv",
    "version": 2
  }
}