Pith Number

pith:JFUQGXFX

pith:2013:JFUQGXFXSOHSO2IQKN6EO5SOJP

not attested not anchored not stored refs pending

Elliptic Calabi-Yau threefolds over a del Pezzo surface

Noriko Yui, Simon Rose

arxiv:1312.0911 v1 · 2013-12-03 · 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{JFUQGXFXSOHSO2IQKN6EO5SOJP}

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	2026-05-18T03:05:36.396745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4969035cb7938f276910537c47764e4beb9855dacb139002830bdb9481d07b90

Aliases

arxiv: 1312.0911 · arxiv_version: 1312.0911v1 · doi: 10.48550/arxiv.1312.0911 · pith_short_12: JFUQGXFXSOHS · pith_short_16: JFUQGXFXSOHSO2IQ · pith_short_8: JFUQGXFX

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/JFUQGXFXSOHSO2IQKN6EO5SOJP \
  | 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: 4969035cb7938f276910537c47764e4beb9855dacb139002830bdb9481d07b90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fc599cc4100abdccb73bd94508136f30382169b971feb7162261a46f7113ae5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-12-03T19:25:40Z",
    "title_canon_sha256": "ebcdbe6f2e6c3b2f448e1541f87d494fa747abfb7d295c8eb8446e6b5d134fc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0911",
    "kind": "arxiv",
    "version": 1
  }
}