Pith Number

pith:Z5XA32QK

pith:2025:Z5XA32QKET7RYEBHLHZXQY6JC2

not attested not anchored not stored refs pending

Cohomology of hypersurfaces of weighted projective space and the intersection form on $H^2$

Anna-Maria Raukh

arxiv:2506.04094 v1 · 2025-06-04 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z5XA32QKET7RYEBHLHZXQY6JC2}

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	2026-07-05T11:15:56.843922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf6e0dea0a24ff1c102759f37863c916adaebab7d5bceb9ef0fa043c171d807b

Aliases

arxiv: 2506.04094 · arxiv_version: 2506.04094v1 · doi: 10.48550/arxiv.2506.04094 · pith_short_12: Z5XA32QKET7R · pith_short_16: Z5XA32QKET7RYEBH · pith_short_8: Z5XA32QK

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/Z5XA32QKET7RYEBHLHZXQY6JC2 \
  | 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: cf6e0dea0a24ff1c102759f37863c916adaebab7d5bceb9ef0fa043c171d807b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fa2508db536512144cc2c7879618b10f0a39ab3402adee61e6d2d584bcf01f6",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-06-04T15:51:15Z",
    "title_canon_sha256": "a10bf2ae686619d08d91229b6a3cab66bf04ed5e7e03a27ad72ecfab2030da06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.04094",
    "kind": "arxiv",
    "version": 1
  }
}