Pith Number

pith:LNI2BPEM

pith:2018:LNI2BPEMGT4KVHJRZ5RVW4INO5

not attested not anchored not stored refs pending

A special Calabi-Yau degeneration with trivial monodromy

Duco van Straten, Slawomir Cynk

arxiv:1812.01622 v1 · 2018-12-04 · 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{LNI2BPEMGT4KVHJRZ5RVW4INO5}

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	2026-05-17T23:59:01.038627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b51a0bc8c34f8aa9d31cf635b710d777ef6bb6c6d60b8a17cc6fbd787b853aa

Aliases

arxiv: 1812.01622 · arxiv_version: 1812.01622v1 · doi: 10.48550/arxiv.1812.01622 · pith_short_12: LNI2BPEMGT4K · pith_short_16: LNI2BPEMGT4KVHJR · pith_short_8: LNI2BPEM

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/LNI2BPEMGT4KVHJRZ5RVW4INO5 \
  | 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: 5b51a0bc8c34f8aa9d31cf635b710d777ef6bb6c6d60b8a17cc6fbd787b853aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "986de7a81775469d9eb4487f8000e46d1607c073c45a56facff8e6dd425eb662",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-12-04T19:00:48Z",
    "title_canon_sha256": "927ce5cf548c41a2fd0b2520f53d4388ad47ca515d2320e10537c84746ba3c88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01622",
    "kind": "arxiv",
    "version": 1
  }
}