Pith Number

pith:IYD24OSR

pith:2026:IYD24OSRU6IYWEJP2THFTEJNNM

not attested not anchored not stored refs pending

The Hirzebruch quadratic form of a hyperplane arrangement and flat logarithmic connections

Dmitri Panov, Martin de Borbon

arxiv:2601.15430 v2 · 2026-01-21 · math.DG · math.AG · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IYD24OSRU6IYWEJP2THFTEJNNM}

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	2026-06-19T16:11:19.595429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4607ae3a51a7918b112fd4ce59912d6b125099a1a6307512162eb93d5772334c

Aliases

arxiv: 2601.15430 · arxiv_version: 2601.15430v2 · doi: 10.48550/arxiv.2601.15430 · pith_short_12: IYD24OSRU6IY · pith_short_16: IYD24OSRU6IYWEJP · pith_short_8: IYD24OSR

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/IYD24OSRU6IYWEJP2THFTEJNNM \
  | 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: 4607ae3a51a7918b112fd4ce59912d6b125099a1a6307512162eb93d5772334c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddbe3209122167051009a43d933120192ce451231d01a634a7f1797303c55fa3",
    "cross_cats_sorted": [
      "math.AG",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2026-01-21T19:55:13Z",
    "title_canon_sha256": "46ad9cf9620f644782a258d63658eb8a01167dede788bfc53e81f5cd470e5a12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.15430",
    "kind": "arxiv",
    "version": 2
  }
}