Pith Number

pith:HXLV3SSC

pith:2018:HXLV3SSC6MNAKXXVMAU3I5LMIJ

not attested not anchored not stored refs pending

Mori Dream Spaces and blow-ups of weighted projective spaces

Zhuang He

arxiv:1803.11536 v2 · 2018-03-30 · 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{HXLV3SSC6MNAKXXVMAU3I5LMIJ}

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	2026-05-17T23:55:38.739122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3dd75dca42f31a055ef56029b4756c42793909dc699200616c33be9f2dd2640b

Aliases

arxiv: 1803.11536 · arxiv_version: 1803.11536v2 · doi: 10.48550/arxiv.1803.11536 · pith_short_12: HXLV3SSC6MNA · pith_short_16: HXLV3SSC6MNAKXXV · pith_short_8: HXLV3SSC

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/HXLV3SSC6MNAKXXVMAU3I5LMIJ \
  | 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: 3dd75dca42f31a055ef56029b4756c42793909dc699200616c33be9f2dd2640b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e844b197add10b1a6594ca4dead045652cdb06cd00cee631feb4399fb9e569a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-30T17:18:36Z",
    "title_canon_sha256": "c065558c778e3111f1279c83dc9e300f0cc612a02f4df88d8731446faca9c05f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.11536",
    "kind": "arxiv",
    "version": 2
  }
}