Pith Number

pith:YQNRFS7P

pith:2009:YQNRFS7P37DBVR2JLF3OSVMY3G

not attested not anchored not stored refs pending

Generalized twisted sectors of orbifolds

Carla Farsi, Christopher Seaton

arxiv:0902.1196 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{YQNRFS7P37DBVR2JLF3OSVMY3G}

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	2026-05-18T04:17:13.831214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c41b12cbefdfc61ac7495976e95598d9a53f4e9a7bd0aa467bb551708182aad3

Aliases

arxiv: 0902.1196 · arxiv_version: 0902.1196v1 · doi: 10.48550/arxiv.0902.1196 · pith_short_12: YQNRFS7P37DB · pith_short_16: YQNRFS7P37DBVR2J · pith_short_8: YQNRFS7P

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/YQNRFS7P37DBVR2JLF3OSVMY3G \
  | 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: c41b12cbefdfc61ac7495976e95598d9a53f4e9a7bd0aa467bb551708182aad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bda6545077c0a44cf4add656d8de81657e5a1c0ea7bf04b480371857fa5a9e4",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-02-06T23:09:16Z",
    "title_canon_sha256": "5b1e519e070905eb865427e15424da2daa24d5ad6987f2691c684bd3e4c8033e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1196",
    "kind": "arxiv",
    "version": 1
  }
}