Pith Number

pith:U6R7KJSD

pith:2020:U6R7KJSDFAIFV64QPBMZDBSNHC

not attested not anchored not stored refs pending

Machine Learning Calabi-Yau Four-folds

Andre Lukas, Yang-Hui He

arxiv:2009.02544 v2 · 2020-09-05 · hep-th · math.AG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U6R7KJSDFAIFV64QPBMZDBSNHC}

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

Machine Learning Free Quotients of CICYs

Receipt and verification

First computed	2026-07-05T02:15:54.221991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7a3f5264328105afb90785991864d3895ffff9c9aeef6c21c8966bf00cd3c95

Aliases

arxiv: 2009.02544 · arxiv_version: 2009.02544v2 · doi: 10.48550/arxiv.2009.02544 · pith_short_12: U6R7KJSDFAIF · pith_short_16: U6R7KJSDFAIFV64Q · pith_short_8: U6R7KJSD

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/U6R7KJSDFAIFV64QPBMZDBSNHC \
  | 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: a7a3f5264328105afb90785991864d3895ffff9c9aeef6c21c8966bf00cd3c95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4f0aec2fd910f85e025c3b1ba6970374a6fe30dea0a2d05ed16b6b03267662c",
    "cross_cats_sorted": [
      "math.AG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2020-09-05T14:54:25Z",
    "title_canon_sha256": "8b0d4e01f78c08cfc22f52044685c69aed9b030c30d91881b15448dfbd52ec2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.02544",
    "kind": "arxiv",
    "version": 2
  }
}