Pith Number

pith:ML2HU3MN

pith:2018:ML2HU3MNBWGF7BWAU6FDEG2IFF

not attested not anchored not stored refs pending

Geometry of symplectic log Calabi-Yau pairs

Cheuk Yu Mak, Tian-Jun Li

arxiv:1805.02196 v1 · 2018-05-06 · math.SG · 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{ML2HU3MNBWGF7BWAU6FDEG2IFF}

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	2026-05-18T00:16:40.657278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62f47a6d8d0d8c5f86c0a78a321b48294839d6094c6e8ec3dc3c1dd1110c0563

Aliases

arxiv: 1805.02196 · arxiv_version: 1805.02196v1 · doi: 10.48550/arxiv.1805.02196 · pith_short_12: ML2HU3MNBWGF · pith_short_16: ML2HU3MNBWGF7BWA · pith_short_8: ML2HU3MN

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/ML2HU3MNBWGF7BWAU6FDEG2IFF \
  | 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: 62f47a6d8d0d8c5f86c0a78a321b48294839d6094c6e8ec3dc3c1dd1110c0563

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f53469ff1e0db8ebd629b4af6fb528c2deb51fbe04a0890ad999b6545ee49a2c",
    "cross_cats_sorted": [
      "math.AG",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2018-05-06T12:09:07Z",
    "title_canon_sha256": "54032642d3aafef169c439b716692395b5cf941566d3d687eb967aab25350dd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02196",
    "kind": "arxiv",
    "version": 1
  }
}