Pith Number

pith:4N6CAVBH

pith:2002:4N6CAVBHBWXRH2W3U66LCNRF6I

not attested not anchored not stored refs pending

Orbifolds as Groupoids: an Introduction

Ieke Moerdijk

arxiv:math/0203100 v1 · 2002-03-11 · 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{4N6CAVBHBWXRH2W3U66LCNRF6I}

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.

Cited by

1 paper in Pith

Hidden Symmetries of 4D N=2 Gauge Theories

Receipt and verification

First computed	2026-07-04T14:35:58.173004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e37c2054270daf13eadba7bcb13625f2253bbb299e867407787127144568cf18

Aliases

arxiv: math/0203100 · arxiv_version: math/0203100v1 · doi: 10.48550/arxiv.math/0203100 · pith_short_12: 4N6CAVBHBWXR · pith_short_16: 4N6CAVBHBWXRH2W3 · pith_short_8: 4N6CAVBH

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/4N6CAVBHBWXRH2W3U66LCNRF6I \
  | 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: e37c2054270daf13eadba7bcb13625f2253bbb299e867407787127144568cf18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74000cd5f5de8f1419d4c9a3097a507103dabb8525ae77f850adae658fbf4454",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2002-03-11T14:07:40Z",
    "title_canon_sha256": "0e3c9c34ae48a23066280576b731e05f1a28d23c52a10e4edb6cf1c6467b8b2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0203100",
    "kind": "arxiv",
    "version": 1
  }
}