Pith Number

pith:OXIAFRLR

pith:2009:OXIAFRLR5NM7YF2F3T2UNVROS7

not attested not anchored not stored refs pending

Rational singularities and quotients by holomorphic group actions

Daniel Greb

arxiv:0906.4623 v2 · 2009-06-25 · math.CV · 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{OXIAFRLR5NM7YF2F3T2UNVROS7}

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	2026-05-18T02:18:41.375644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75d002c571eb59fc1745dcf546d62e97ee7c1ce2b580fce133996ceebb123943

Aliases

arxiv: 0906.4623 · arxiv_version: 0906.4623v2 · doi: 10.48550/arxiv.0906.4623 · pith_short_12: OXIAFRLR5NM7 · pith_short_16: OXIAFRLR5NM7YF2F · pith_short_8: OXIAFRLR

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/OXIAFRLR5NM7YF2F3T2UNVROS7 \
  | 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: 75d002c571eb59fc1745dcf546d62e97ee7c1ce2b580fce133996ceebb123943

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48cb7feb4699c1322c57de2a8ffd995d8b645b46909d8d4d613f2892497c0ea5",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2009-06-25T08:02:43Z",
    "title_canon_sha256": "f57e0e4659cf33c835e5076b2ef2a484e453be10a727bcb5ba65b3e402e85501"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4623",
    "kind": "arxiv",
    "version": 2
  }
}