Pith Number

pith:HWSJ6TON

pith:2017:HWSJ6TONZLCRPVK4HTESQ5KNIW

not attested not anchored not stored refs pending

Calabi-Yau double coverings of Fano-Enriques threefolds

Nam-Hoon Lee

arxiv:1703.02889 v1 · 2017-03-08 · 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{HWSJ6TONZLCRPVK4HTESQ5KNIW}

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	2026-05-18T00:49:05.394881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3da49f4dcdcac517d55c3cc928754d4583bfef44dc93eba6599d8dc7d80f4980

Aliases

arxiv: 1703.02889 · arxiv_version: 1703.02889v1 · doi: 10.48550/arxiv.1703.02889 · pith_short_12: HWSJ6TONZLCR · pith_short_16: HWSJ6TONZLCRPVK4 · pith_short_8: HWSJ6TON

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/HWSJ6TONZLCRPVK4HTESQ5KNIW \
  | 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: 3da49f4dcdcac517d55c3cc928754d4583bfef44dc93eba6599d8dc7d80f4980

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb4b7f5be4e68f0ae579924b2e45c5cbb86f36d0d3afde2559b56a93b4370df2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-03-08T16:13:47Z",
    "title_canon_sha256": "3c8e9c834afcbc0f8837dde39e1d2ae87c0c48eec94fd952050bf63d8787de3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02889",
    "kind": "arxiv",
    "version": 1
  }
}