Pith Number

pith:URZD2HMJ

pith:2012:URZD2HMJ2I5PBGIBQY3IPBVD2L

not attested not anchored not stored refs pending

A Cantor set with hyperbolic complement

Juan Souto, Matthew Stover

arxiv:1205.4668 v1 · 2012-05-21 · math.GT · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{URZD2HMJ2I5PBGIBQY3IPBVD2L}

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	2026-05-18T03:55:12.631098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4723d1d89d23af0990186368786a3d2fa1c85c1823463f73e31891f95f2d8f2

Aliases

arxiv: 1205.4668 · arxiv_version: 1205.4668v1 · doi: 10.48550/arxiv.1205.4668 · pith_short_12: URZD2HMJ2I5P · pith_short_16: URZD2HMJ2I5PBGIB · pith_short_8: URZD2HMJ

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/URZD2HMJ2I5PBGIBQY3IPBVD2L \
  | 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: a4723d1d89d23af0990186368786a3d2fa1c85c1823463f73e31891f95f2d8f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1937ba881cbedff17741186432a9bc2a160b5b6b60817513d490f4c58c35e107",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2012-05-21T18:10:32Z",
    "title_canon_sha256": "27d55bcecec954a65f6983a54082874b34f01e086bb75c08785bd7b954913dba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4668",
    "kind": "arxiv",
    "version": 1
  }
}