Pith Number

pith:EC7FW5MJ

pith:2001:EC7FW5MJHKIOXMOXF72DB3LYT3

not attested not anchored not stored refs pending

A note on symplectic singularities

Yoshinori Namikawa

arxiv:math/0101028 v1 · 2001-01-04 · 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{EC7FW5MJHKIOXMOXF72DB3LYT3}

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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

5 papers in Pith

The hyper-Kummer construction

Thirty-three deformation classes of compact hyperk\"ahler orbifolds

The LLV Algebra for Primitive Symplectic Varieties with Isolated Singularities

Terminalizations of quotients of compact hyperk\"ahler manifolds by induced symplectic automorphisms

A connection between minimal nilpotent orbits of types A and D via Hamiltonian reduction

Receipt and verification

First computed	2026-07-04T14:35:00.557607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20be5b75893a90ebb1d72ff430ed789ef94ddd782810f9e4a1d93d161f42fb0e

Aliases

arxiv: math/0101028 · arxiv_version: math/0101028v1 · doi: 10.48550/arxiv.math/0101028 · pith_short_12: EC7FW5MJHKIO · pith_short_16: EC7FW5MJHKIOXMOX · pith_short_8: EC7FW5MJ

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/EC7FW5MJHKIOXMOXF72DB3LYT3 \
  | 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: 20be5b75893a90ebb1d72ff430ed789ef94ddd782810f9e4a1d93d161f42fb0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75a32b8b039399fda2c59aa41b75b45f054387f16a786dff813b62cbf68f1c6f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2001-01-04T02:55:21Z",
    "title_canon_sha256": "1826a64e86ea9c5d16d91b1379e32702c49bd93490a7813e7ec5b9ac6fd103e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0101028",
    "kind": "arxiv",
    "version": 1
  }
}