Pith Number

pith:77CGECQN

pith:2009:77CGECQNRZHJSIX5BYY7B5DCGG

not attested not anchored not stored refs pending

Generalized orbifold Euler characteristics for general orbifolds and wreath products

Carla Farsi, Christopher Seaton

arxiv:0902.1198 v1 · 2009-02-06 · math.DG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{77CGECQNRZHJSIX5BYY7B5DCGG}

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	2026-05-18T02:41:51.360555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffc4620a0d8e4e9922fd0e31f0f46231bd7d155dc1d2f6116bacb02862c92174

Aliases

arxiv: 0902.1198 · arxiv_version: 0902.1198v1 · doi: 10.48550/arxiv.0902.1198 · pith_short_12: 77CGECQNRZHJ · pith_short_16: 77CGECQNRZHJSIX5 · pith_short_8: 77CGECQN

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/77CGECQNRZHJSIX5BYY7B5DCGG \
  | 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: ffc4620a0d8e4e9922fd0e31f0f46231bd7d155dc1d2f6116bacb02862c92174

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "091862701ff3c9728645aa49cc7924d12639602405dbda9c135c516567c132b4",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-02-06T23:15:52Z",
    "title_canon_sha256": "1f60c7068f16fe8bad24d1c6c5cffb0a632ab9a68dbee81324e3dc2d310ed700"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1198",
    "kind": "arxiv",
    "version": 1
  }
}