Pith Number

pith:CPEPA3X4

pith:2018:CPEPA3X4KDKHOPYM4HMXGKQ7UD

not attested not anchored not stored refs pending

A gluing construction of collapsing Calabi-Yau metrics on K3 fibred 3-folds

Yang Li

arxiv:1809.08120 v1 · 2018-09-21 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPEPA3X4KDKHOPYM4HMXGKQ7UD}

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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.

Cited by

2 papers in Pith

Uniqueness of some Calabi-Yau metrics on $\mathbf{C}^n$

Warped quasi-asymptotically conical Calabi-Yau metrics

Receipt and verification

First computed	2026-05-18T00:05:10.309375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13c8f06efc50d4773f0ce1d9732a1fa0d57339f1301a92796fc53748f68ad079

Aliases

arxiv: 1809.08120 · arxiv_version: 1809.08120v1 · doi: 10.48550/arxiv.1809.08120 · pith_short_12: CPEPA3X4KDKH · pith_short_16: CPEPA3X4KDKHOPYM · pith_short_8: CPEPA3X4

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/CPEPA3X4KDKHOPYM4HMXGKQ7UD \
  | 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: 13c8f06efc50d4773f0ce1d9732a1fa0d57339f1301a92796fc53748f68ad079

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a7ba0766b619e3a9ef5408b4ca290a68ae297d97260514b12ab77a5c2a368ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-09-21T13:52:31Z",
    "title_canon_sha256": "e42a8aa64b2a19be4a34ee44ec90f8e9f3b08f9e27dd1071c5b5b4b6552581f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08120",
    "kind": "arxiv",
    "version": 1
  }
}