Pith Number

pith:ETBBP7JX

pith:2005:ETBBP7JXFDJSSE7ALWPB6ARRAR

not attested not anchored not stored refs pending

Huber's theorem for hyperbolic orbisurfaces

Alexander Strohmaier, Emily B. Dryden

arxiv:math/0504571 v2 · 2005-04-28 · math.SP · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ETBBP7JXFDJSSE7ALWPB6ARRAR}

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	2026-05-18T03:35:36.991856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24c217fd3728d32913e05d9e1f0231046af47215cf230c0d9b1fd83ec70eac5b

Aliases

arxiv: math/0504571 · arxiv_version: math/0504571v2 · doi: 10.48550/arxiv.math/0504571 · pith_short_12: ETBBP7JXFDJS · pith_short_16: ETBBP7JXFDJSSE7A · pith_short_8: ETBBP7JX

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/ETBBP7JXFDJSSE7ALWPB6ARRAR \
  | 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: 24c217fd3728d32913e05d9e1f0231046af47215cf230c0d9b1fd83ec70eac5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60f41f97354c63be5555012b0f006e53c1ebbaae0ee088b8a7d58ec7ff9e08a9",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "",
    "primary_cat": "math.SP",
    "submitted_at": "2005-04-28T13:59:33Z",
    "title_canon_sha256": "a1c21978ba33731959cd6957e0c3671167e29fe20c65b2d201dce01d6064aa27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0504571",
    "kind": "arxiv",
    "version": 2
  }
}