Pith Number

pith:Q26JTIH4

pith:2010:Q26JTIH4KVE5MJHBBEHDWGFQBZ

not attested not anchored not stored refs pending

Conway spheres as ideal points of the character variety

Joan Porti, Luisa Paoluzzi

arxiv:1008.4673 v1 · 2010-08-27 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q26JTIH4KVE5MJHBBEHDWGFQBZ}

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	2026-05-18T04:41:44.500661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86bc99a0fc5549d624e1090e3b18b00e640577837c0137d9c86ce8721772436e

Aliases

arxiv: 1008.4673 · arxiv_version: 1008.4673v1 · doi: 10.48550/arxiv.1008.4673 · pith_short_12: Q26JTIH4KVE5 · pith_short_16: Q26JTIH4KVE5MJHB · pith_short_8: Q26JTIH4

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/Q26JTIH4KVE5MJHBBEHDWGFQBZ \
  | 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: 86bc99a0fc5549d624e1090e3b18b00e640577837c0137d9c86ce8721772436e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b5fd72df54859707b9f13150b03bfa0986b81245822b47578efe5394d1752d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2010-08-27T09:25:59Z",
    "title_canon_sha256": "e35a3e8d487cffc5526f5c12ff75c679c7e6810af2597c021f0c990052d642bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4673",
    "kind": "arxiv",
    "version": 1
  }
}