Pith Number

pith:F7KC3M5F

pith:2025:F7KC3M5FZLZ2GTVG66F7LUAR27

not attested not anchored not stored refs pending

The Iarrobino scheme: a self-dual analogue of the Hilbert scheme of points

Joachim Jelisiejew

arxiv:2508.21705 v1 · 2025-08-29 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7KC3M5FZLZ2GTVG66F7LUAR27}

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	2026-07-05T12:01:48.226684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fd42db3a5caf3a34ea6f78bf5d011d7fbece4d200ab1c5df1ae795fdc4d48e4

Aliases

arxiv: 2508.21705 · arxiv_version: 2508.21705v1 · doi: 10.48550/arxiv.2508.21705 · pith_short_12: F7KC3M5FZLZ2 · pith_short_16: F7KC3M5FZLZ2GTVG · pith_short_8: F7KC3M5F

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/F7KC3M5FZLZ2GTVG66F7LUAR27 \
  | 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: 2fd42db3a5caf3a34ea6f78bf5d011d7fbece4d200ab1c5df1ae795fdc4d48e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc40f69d3386515e16e2c9b4c7837acf2088b1b81bb0eb7e72d09c3b4e90e807",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-08-29T15:25:04Z",
    "title_canon_sha256": "863f5202efcfee2f3c3b6aeeaddbc0d034690f8c3109e7be94cb2965ee550199"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.21705",
    "kind": "arxiv",
    "version": 1
  }
}