Pith Number

pith:4AC5UO26

pith:2018:4AC5UO26JDRXLZ2YNQSKZ6QHIU

not attested not anchored not stored refs pending

Connected sum of spherical CR manifolds with positive CR Yamabe constant

Hung-Lin Chiu, Jih-Hsin Cheng

arxiv:1805.08485 v2 · 2018-05-22 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4AC5UO26JDRXLZ2YNQSKZ6QHIU}

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	2026-05-18T00:12:31.620461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e005da3b5e48e375e7586c24acfa074504f42b3274be64add2ad5c21295068d2

Aliases

arxiv: 1805.08485 · arxiv_version: 1805.08485v2 · doi: 10.48550/arxiv.1805.08485 · pith_short_12: 4AC5UO26JDRX · pith_short_16: 4AC5UO26JDRXLZ2Y · pith_short_8: 4AC5UO26

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/4AC5UO26JDRXLZ2YNQSKZ6QHIU \
  | 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: e005da3b5e48e375e7586c24acfa074504f42b3274be64add2ad5c21295068d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70e1c2ddd2eed39b2a6424f48bdd84bf69511e4ac083010e0ebfd2f76b23c87f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-05-22T10:33:23Z",
    "title_canon_sha256": "394b8c9dc2580f17ab9c59f46e8b3cb02610296f385710fa158bb98230a3b22b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08485",
    "kind": "arxiv",
    "version": 2
  }
}