Pith Number

pith:D2UHWHB5

pith:2010:D2UHWHB5KIIAJ4XLW2HIMWS6I3

not attested not anchored not stored refs pending

Construction of surfaces of general type from elliptic surfaces via Q-Gorenstein smoothing

Heesang Park, JongHae Keum, Yongnam Lee

arxiv:1008.1222 v3 · 2010-08-06 · math.AG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2UHWHB5KIIAJ4XLW2HIMWS6I3}

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	2026-05-18T04:35:46.862039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ea87b1c3d521004f2ebb68e865a5e46f8d254f0b82fc41036907bf42cfb08c8

Aliases

arxiv: 1008.1222 · arxiv_version: 1008.1222v3 · doi: 10.48550/arxiv.1008.1222 · pith_short_12: D2UHWHB5KIIA · pith_short_16: D2UHWHB5KIIAJ4XL · pith_short_8: D2UHWHB5

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/D2UHWHB5KIIAJ4XLW2HIMWS6I3 \
  | 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: 1ea87b1c3d521004f2ebb68e865a5e46f8d254f0b82fc41036907bf42cfb08c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71045bc7854f6f322e382b8a36829ab713668f0ab195f9a04fe09243070e29bb",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-08-06T15:47:00Z",
    "title_canon_sha256": "197c32ea7f88ef7fa2fa41e64278e82e385d02602dbeca747ebb13a4b92627f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1222",
    "kind": "arxiv",
    "version": 3
  }
}