Pith Number

pith:2DWUSU62

pith:2024:2DWUSU62I22WICWSVSTHOG7HRH

not attested not anchored not stored refs pending

On the Nef cones of blowups of the projective plane

Lu\'ize D'Urso

arxiv:2412.15460 v2 · 2024-12-19 · math.AG · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2DWUSU62I22WICWSVSTHOG7HRH}

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.

Cited by

1 paper in Pith

Blowups, Gale duality, and moduli spaces

Receipt and verification

First computed	2026-07-05T11:34:03.010788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0ed4953da46b5640ad2aca6771be789d31e54db60dd4f0349b2959573faf821

Aliases

arxiv: 2412.15460 · arxiv_version: 2412.15460v2 · doi: 10.48550/arxiv.2412.15460 · pith_short_12: 2DWUSU62I22W · pith_short_16: 2DWUSU62I22WICWS · pith_short_8: 2DWUSU62

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/2DWUSU62I22WICWSVSTHOG7HRH \
  | 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: d0ed4953da46b5640ad2aca6771be789d31e54db60dd4f0349b2959573faf821

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15001f89ce2372780e084bc6f0a951c3c64f576d07d07df42137d4fe126785a6",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2024-12-19T23:38:10Z",
    "title_canon_sha256": "495e88607b2d4a1530fa51143e9a62d3da5bcd9d29afa6d7096574e6f4a0ef30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.15460",
    "kind": "arxiv",
    "version": 2
  }
}