Pith Number

pith:LYAORHBI

pith:2026:LYAORHBISKX2XDLJ3SEVYD4E2T

not attested not anchored not stored refs pending

Non-projective complete log canonical surfaces

Hiroshi Sato, Nao Moriyama, Osamu Fujino

arxiv:2606.05881 v1 · 2026-06-04 · 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{LYAORHBISKX2XDLJ3SEVYD4E2T}

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	2026-06-05T01:15:06.693111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e00e89c2892afab8d69dc895c0f84d4e6fcc8e8b9a0bfd7450da656ee43b314

Aliases

arxiv: 2606.05881 · arxiv_version: 2606.05881v1 · doi: 10.48550/arxiv.2606.05881 · pith_short_12: LYAORHBISKX2 · pith_short_16: LYAORHBISKX2XDLJ · pith_short_8: LYAORHBI

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/LYAORHBISKX2XDLJ3SEVYD4E2T \
  | 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: 5e00e89c2892afab8d69dc895c0f84d4e6fcc8e8b9a0bfd7450da656ee43b314

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39a4fd12bda88631a76ccd0dd1312f234f3f40c961ca8770df7718e293a829cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-06-04T08:53:17Z",
    "title_canon_sha256": "7b1ab561533e37781f5bf6b078c82e348b8752e8b85d90d0ce9e0c8fe0b9b930"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.05881",
    "kind": "arxiv",
    "version": 1
  }
}