Pith Number

pith:TH6GQMYG

pith:2018:TH6GQMYGXDR6WXZEURDLD5OWLM

not attested not anchored not stored refs pending

Spectrum of Projective Plane Curve Arrangements with Ordinary Singularities

Youngho Yoon

arxiv:1804.03863 v2 · 2018-04-11 · math.AG · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TH6GQMYGXDR6WXZEURDLD5OWLM}

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	2026-05-17T23:53:57.773172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99fc683306b8e3eb5f24a446b1f5d65b3f0c05de76fa07dc11034845e05116f1

Aliases

arxiv: 1804.03863 · arxiv_version: 1804.03863v2 · doi: 10.48550/arxiv.1804.03863 · pith_short_12: TH6GQMYGXDR6 · pith_short_16: TH6GQMYGXDR6WXZE · pith_short_8: TH6GQMYG

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/TH6GQMYGXDR6WXZEURDLD5OWLM \
  | 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: 99fc683306b8e3eb5f24a446b1f5d65b3f0c05de76fa07dc11034845e05116f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58394e5ab9974561cfef5598f269186109d62723b70674f217e02ca978fcbb67",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-04-11T08:15:15Z",
    "title_canon_sha256": "a522e74da0291a6a2ee15adfea124db277789e46ae8ee8a435bcae8d76a9b0ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03863",
    "kind": "arxiv",
    "version": 2
  }
}