Pith Number

pith:AAYRRSPB

pith:2018:AAYRRSPB7LZ4XE2XN6SKC6Q7JL

not attested not anchored not stored refs pending

Examples of Mori dream surfaces of general type with $p_g=0$

JongHae Keum, Kyoung-Seog Lee

arxiv:1804.08382 v2 · 2018-04-23 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AAYRRSPB7LZ4XE2XN6SKC6Q7JL}

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	2026-05-18T00:16:41.893011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

003118c9e1faf3cb93576fa4a17a1f4af92434d0f4b9a486f82d1edc15cedba9

Aliases

arxiv: 1804.08382 · arxiv_version: 1804.08382v2 · doi: 10.48550/arxiv.1804.08382 · pith_short_12: AAYRRSPB7LZ4 · pith_short_16: AAYRRSPB7LZ4XE2X · pith_short_8: AAYRRSPB

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/AAYRRSPB7LZ4XE2XN6SKC6Q7JL \
  | 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: 003118c9e1faf3cb93576fa4a17a1f4af92434d0f4b9a486f82d1edc15cedba9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26a13a7ed27e17d94b5f1c0dd2a83a49e52f72180ad43461ed6d5f067b9ea972",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-04-23T12:54:48Z",
    "title_canon_sha256": "880600c032ad6ef95900026a6902b43a735c07802a88df2f60a3bd6fc4416862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08382",
    "kind": "arxiv",
    "version": 2
  }
}