Pith Number

pith:STUYNZFI

pith:2018:STUYNZFICEV537IU62AVU67TRZ

not attested not anchored not stored refs pending

The Webster scalar curvature and sharp upper and lower bounds for the first positive eigenvalue of the Kohn-Laplacian on real hypersurfaces

Duong Ngoc Son, Song-Ying Li

arxiv:1803.07653 v1 · 2018-03-20 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{STUYNZFICEV537IU62AVU67TRZ}

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	2026-05-18T00:08:20.932539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94e986e4a8112bddfd14f6815a7bf38e5beb0fc2d33b017c4bc64b32302a37ef

Aliases

arxiv: 1803.07653 · arxiv_version: 1803.07653v1 · doi: 10.48550/arxiv.1803.07653 · pith_short_12: STUYNZFICEV5 · pith_short_16: STUYNZFICEV537IU · pith_short_8: STUYNZFI

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/STUYNZFICEV537IU62AVU67TRZ \
  | 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: 94e986e4a8112bddfd14f6815a7bf38e5beb0fc2d33b017c4bc64b32302a37ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56d767c815db53c41dffcc5b02ac9216ba3a054a6831adfded7e43a5785a4569",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-03-20T21:00:00Z",
    "title_canon_sha256": "c3ad18ad8a6b0f6f434bbb32ad53fcb2787c366fc2893db92691a0f4a6ef0496"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07653",
    "kind": "arxiv",
    "version": 1
  }
}