Pith Number

pith:ZQ23RONE

pith:2014:ZQ23RONE7LIJMFIZR6VBV3F4CV

not attested not anchored not stored refs pending

Noether--Lefschetz theorem for hypersurface sections of singular threefolds

Remke Kloosterman

arxiv:1403.3609 v1 · 2014-03-14 · 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{ZQ23RONE7LIJMFIZR6VBV3F4CV}

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	2026-05-18T02:56:19.957874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc35b8b9a4fad09615198faa1aecbc1542780eab86fc266bd39db0f88f4ab96c

Aliases

arxiv: 1403.3609 · arxiv_version: 1403.3609v1 · doi: 10.48550/arxiv.1403.3609 · pith_short_12: ZQ23RONE7LIJ · pith_short_16: ZQ23RONE7LIJMFIZ · pith_short_8: ZQ23RONE

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/ZQ23RONE7LIJMFIZR6VBV3F4CV \
  | 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: cc35b8b9a4fad09615198faa1aecbc1542780eab86fc266bd39db0f88f4ab96c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0512a1cf5bbbe5adc8fd49746c36a7090e69b31fb0cc54d9f650a0c565e4487f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-03-14T15:30:07Z",
    "title_canon_sha256": "dc924dc35b1e341f4566021c144ec3b0f56b949b02eb02dd216260f57063f416"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3609",
    "kind": "arxiv",
    "version": 1
  }
}