Pith Number

pith:OBOI57DU

pith:2010:OBOI57DU5BNN5X6LJTYQ626B5H

not attested not anchored not stored refs pending

Weakly--exceptional quotient singularities

Dmitrijs Sakovics

arxiv:1006.5909 v2 · 2010-06-30 · math.AG · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBOI57DU5BNN5X6LJTYQ626B5H}

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	2026-05-18T02:38:46.514644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

705c8efc74e85adedfcb4cf10f6bc1e9e6346a286acff7ac37c10ff863b0e377

Aliases

arxiv: 1006.5909 · arxiv_version: 1006.5909v2 · doi: 10.48550/arxiv.1006.5909 · pith_short_12: OBOI57DU5BNN · pith_short_16: OBOI57DU5BNN5X6L · pith_short_8: OBOI57DU

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/OBOI57DU5BNN5X6LJTYQ626B5H \
  | 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: 705c8efc74e85adedfcb4cf10f6bc1e9e6346a286acff7ac37c10ff863b0e377

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1983b49bf156e845c247dbd7e1fb45616ce3183eefc145023db96aee60a0d99b",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-06-30T16:26:41Z",
    "title_canon_sha256": "d785f931c93c51e0d438842624c435a7508b571c05555597ed14ba985b999afa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.5909",
    "kind": "arxiv",
    "version": 2
  }
}