Pith Number

pith:QUPF37QC

pith:2025:QUPF37QCE5S6LZTHEUJZ2AYJO2

not attested not anchored not stored refs pending

Calabi-Yau threefolds across quadratic singularities

S\'ebastien Picard

arxiv:2501.19313 v1 · 2025-01-31 · math.DG · 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{QUPF37QCE5S6LZTHEUJZ2AYJO2}

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.

Cited by

1 paper in Pith

An introduction to conifold transitions

Receipt and verification

First computed	2026-07-05T10:07:59.491568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

851e5dfe022765e5e66725139d030976961ef847e8515c056a0ad9a856b42a81

Aliases

arxiv: 2501.19313 · arxiv_version: 2501.19313v1 · doi: 10.48550/arxiv.2501.19313 · pith_short_12: QUPF37QCE5S6 · pith_short_16: QUPF37QCE5S6LZTH · pith_short_8: QUPF37QC

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/QUPF37QCE5S6LZTHEUJZ2AYJO2 \
  | 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: 851e5dfe022765e5e66725139d030976961ef847e8515c056a0ad9a856b42a81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98d9fb75e3229b43be9ae40505a9f06eeb95b9d5aa1a8fc8d1f25d52a848b279",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2025-01-31T17:11:42Z",
    "title_canon_sha256": "8a08604a66d63d233891e5bb92fcfb21b828a94ae9163550ecde3f12cb2a0d35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.19313",
    "kind": "arxiv",
    "version": 1
  }
}