---
title: "Can I reuse an existing powers of tau instead of running my own ceremony?"
description: "For universal-setup systems, usually yes, and it is often the better choice: large public ceremonies such as the Perpetual Powers of Tau and the Ethereum KZG…"
type: "question"
url: "https://zkpick.com/faq/can-i-reuse-an-existing-powers-of-tau-instead-of-running-my-own-ceremony/"
section: "04 Running or reusing a trusted setup"
authors:
  - "MarketComp"
publisher: "MarketComp"
version: "1.3"
updated: "2026-09-12"
license: "CC-BY-4.0"
json: "https://zkpick.com/data/faq/can-i-reuse-an-existing-powers-of-tau-instead-of-running-my-own-ceremony.json"
---

*By MarketComp. Updated 2026-09-12. Version 1.3. CC BY 4.0.*

# Can I reuse an existing powers of tau instead of running my own ceremony?

For universal-setup systems, usually yes, and it is often the better choice: large public ceremonies such as the Perpetual Powers of Tau and the Ethereum KZG ceremony have far more participants and far more public scrutiny than a project-run ceremony can realistically attract. You must match the curve and the required degree bound, and you must verify the transcript yourself rather than trusting that someone else did. See Section 04.