Pith Number

pith:K2QQBK7Q

pith:2010:K2QQBK7Q6QANJHEZ4KOSHMYFPX

not attested not anchored not stored refs pending

Computations of the orbifold Yamabe invariant

Kazuo Akutagawa

arxiv:1009.3576 v1 · 2010-09-18 · math.DG · 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{K2QQBK7Q6QANJHEZ4KOSHMYFPX}

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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	2026-05-18T04:40:44.550334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56a100abf0f400d49c99e29d23b3057dc271425667c2d28882623390414c8faa

Aliases

arxiv: 1009.3576 · arxiv_version: 1009.3576v1 · doi: 10.48550/arxiv.1009.3576 · pith_short_12: K2QQBK7Q6QAN · pith_short_16: K2QQBK7Q6QANJHEZ · pith_short_8: K2QQBK7Q

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/K2QQBK7Q6QANJHEZ4KOSHMYFPX \
  | 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: 56a100abf0f400d49c99e29d23b3057dc271425667c2d28882623390414c8faa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6ea4fdc9dd553973a00c34aaa4a08dba4af51565f972b71b7c7f2d8623c17bd",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-09-18T19:02:49Z",
    "title_canon_sha256": "b6d6fe1ccae51740f26796dd8c7bab2424569a89aee9d114c01c8939e54005d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.3576",
    "kind": "arxiv",
    "version": 1
  }
}