Pith Number

pith:JOHFH33A

pith:2008:JOHFH33ARAVQ2K5JG22N76H374

not attested not anchored not stored refs pending

Flips and variation of moduli schemes of sheaves on a surface

Kimiko Yamada

arxiv:0811.3522 v2 · 2008-11-21 · 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{JOHFH33ARAVQ2K5JG22N76H374}

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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.

Cited by

1 paper in Pith

The Kodaira dimension and singularities of moduli of stable sheaves on some elliptic surfaces

Receipt and verification

First computed	2026-07-04T15:34:57.813298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b8e53ef60882b0d2ba936b4dff8fbff28c7a82b3919807aab2b75e85c4cf074

Aliases

arxiv: 0811.3522 · arxiv_version: 0811.3522v2 · doi: 10.48550/arxiv.0811.3522 · pith_short_12: JOHFH33ARAVQ · pith_short_16: JOHFH33ARAVQ2K5J · pith_short_8: JOHFH33A

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/JOHFH33ARAVQ2K5JG22N76H374 \
  | 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: 4b8e53ef60882b0d2ba936b4dff8fbff28c7a82b3919807aab2b75e85c4cf074

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "215e63e6dec7d554f7970492281a11d373a57d6cf1947086bc098fa08fcca84d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-11-21T11:45:09Z",
    "title_canon_sha256": "4711a0ee1720b13bc2af8b020925464db42d844cd680b393e002147d3e11fa63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.3522",
    "kind": "arxiv",
    "version": 2
  }
}