Pith Number

pith:SFR43X57

pith:2012:SFR43X57RAMQTZTVBBZNJZSY3R

not attested not anchored not stored refs pending

New examples of Calabi-Yau threefolds and genus zero surfaces

Filippo F. Favale, Gilberto Bini, Jorge Neves, Roberto Pignatelli

arxiv:1211.2390 v2 · 2012-11-11 · 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{SFR43X57RAMQTZTVBBZNJZSY3R}

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	2026-05-18T03:27:42.709292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9163cddfbf881909e6750872d4e658dc5fdb8e84664a75614b4d31dbf79b8f75

Aliases

arxiv: 1211.2390 · arxiv_version: 1211.2390v2 · doi: 10.48550/arxiv.1211.2390 · pith_short_12: SFR43X57RAMQ · pith_short_16: SFR43X57RAMQTZTV · pith_short_8: SFR43X57

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/SFR43X57RAMQTZTVBBZNJZSY3R \
  | 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: 9163cddfbf881909e6750872d4e658dc5fdb8e84664a75614b4d31dbf79b8f75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58bef2e0ec290b20e1d5f4f0fe4290ec644ce7c73af7342cd10be4ca5cb86bc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-11-11T09:56:41Z",
    "title_canon_sha256": "d6036afa7debd6c570d7815d08ba8a7bec45c53b001042d3cbe90cee5e150e1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2390",
    "kind": "arxiv",
    "version": 2
  }
}