Pith Number

pith:ED3GUO7X

pith:2012:ED3GUO7XXCGGSHPVNOTOP23YH4

not attested not anchored not stored refs pending

Classification of spherical tilings by congruent quadrangles over pseudo-double wheels (I) -- a special tiling by congruent concave quadrangles

Yohji Akama

arxiv:1210.0152 v2 · 2012-09-29 · math.MG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ED3GUO7XXCGGSHPVNOTOP23YH4}

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	2026-05-18T03:44:02.041329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20f66a3bf7b88c691df56ba6e7eb783f1bce15d2e4f0fd52ae7722c565767bd9

Aliases

arxiv: 1210.0152 · arxiv_version: 1210.0152v2 · doi: 10.48550/arxiv.1210.0152 · pith_short_12: ED3GUO7XXCGG · pith_short_16: ED3GUO7XXCGGSHPV · pith_short_8: ED3GUO7X

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/ED3GUO7XXCGGSHPVNOTOP23YH4 \
  | 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: 20f66a3bf7b88c691df56ba6e7eb783f1bce15d2e4f0fd52ae7722c565767bd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7530c6424a6bce62075851c3bb7ed69e1da5fbb105449402cc1094725b62162c",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2012-09-29T21:30:31Z",
    "title_canon_sha256": "f24c877395264fbc2f0218c71a84696c5559fb6862c01366288abfeef5c9fc81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0152",
    "kind": "arxiv",
    "version": 2
  }
}