Pith Number

pith:ZSPNTO2P

pith:2026:ZSPNTO2POIMTKK3PPKFVA7FWVO

not attested not anchored not stored refs pending

CscK metrics on birational models of projective varieties

Zakarias Sj\"ostr\"om Dyrefelt

arxiv:2608.03572 v1 · 2026-08-04 · math.DG · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZSPNTO2POIMTKK3PPKFVA7FWVO}

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	2026-08-05T01:36:40.234026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc9ed9bb4f7219352b6f7a8b507cb6aba109dc1e7080f8004cb6130608dedf48

Aliases

arxiv: 2608.03572 · arxiv_version: 2608.03572v1 · doi: 10.48550/arxiv.2608.03572 · pith_short_12: ZSPNTO2POIMT · pith_short_16: ZSPNTO2POIMTKK3P · pith_short_8: ZSPNTO2P

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/ZSPNTO2POIMTKK3PPKFVA7FWVO \
  | 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: cc9ed9bb4f7219352b6f7a8b507cb6aba109dc1e7080f8004cb6130608dedf48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd4064607df14e960947b3b466b428c264eb778d49a6f735bc3f81d47ee9aa89",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2026-08-04T12:32:22Z",
    "title_canon_sha256": "a246399e82099987de4456a60fee3868fbcf8481c1e1f9795f9770d4a265ac60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.03572",
    "kind": "arxiv",
    "version": 1
  }
}