Pith Number

pith:XYM57KNW

pith:2017:XYM57KNW5W2FTL63VBWLRXIE7C

not attested not anchored not stored refs pending

Calabi-Yau threefolds in positive characteristic

Yukihide Takayama

arxiv:1701.07593 v1 · 2017-01-26 · 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{XYM57KNW5W2FTL63VBWLRXIE7C}

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	2026-05-18T00:50:16.960242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be19dfa9b6edb459afdba86cb8dd04f899c38a154860d4001eb00446753a2b62

Aliases

arxiv: 1701.07593 · arxiv_version: 1701.07593v1 · doi: 10.48550/arxiv.1701.07593 · pith_short_12: XYM57KNW5W2F · pith_short_16: XYM57KNW5W2FTL63 · pith_short_8: XYM57KNW

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/XYM57KNW5W2FTL63VBWLRXIE7C \
  | 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: be19dfa9b6edb459afdba86cb8dd04f899c38a154860d4001eb00446753a2b62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55e04dbe9e1423480f8d97b225c229a502247ec52b253b13b143d3f500d9ab8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-01-26T07:08:00Z",
    "title_canon_sha256": "bae405d6b9320842bd20e1e08a4cd992c1022bdc7c3497a644fe4d29479480d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07593",
    "kind": "arxiv",
    "version": 1
  }
}