Pith Number

pith:7JEPVS57

pith:2026:7JEPVS57FJ3KJ4JVV2EEUNLFBI

not attested not anchored not stored refs pending

On Isotopies and hyperbolicity of weaves

Ken'ichi Yoshida

arxiv:2605.22129 v1 · 2026-05-21 · 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{7JEPVS57FJ3KJ4JVV2EEUNLFBI}

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	2026-05-22T01:04:27.265835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa48facbbf2a76a4f135ae884a35650a0f5f5c609ce9b025fdac2ff83c9e6e42

Aliases

arxiv: 2605.22129 · arxiv_version: 2605.22129v1 · doi: 10.48550/arxiv.2605.22129 · pith_short_12: 7JEPVS57FJ3K · pith_short_16: 7JEPVS57FJ3KJ4JV · pith_short_8: 7JEPVS57

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/7JEPVS57FJ3KJ4JVV2EEUNLFBI \
  | 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: fa48facbbf2a76a4f135ae884a35650a0f5f5c609ce9b025fdac2ff83c9e6e42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd01eb0817c7b69b37bd873d3b70c242ed5a82d5ce96210c684d3815705b4cc1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2026-05-21T08:05:23Z",
    "title_canon_sha256": "7da1d740eec24c9786839be092bf095340c6bc81b8909259d74d666b79b96eef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22129",
    "kind": "arxiv",
    "version": 1
  }
}