Bitcoin Optech: Proposed BIP Q And A

The Bitcoin Optech newsletter provides readers with a top-level summary of the most important technical news happening in Bitcoin, along with resources that help them learn more. To help our readers stay up-to-date with Bitcoin, we’re republishing the latest issue of this newsletter below. Remember to subscribe to receive this content straight to your inbox.

This week’s newsletter summarizes two proposed BIPs related to wallet support for taproot and includes our regular sections describing selected questions and answers on the Bitcoin Stack Exchange, how to prepare for taproot, and notable changes to popular Bitcoin infrastructure projects.

News

Selected Q&A from Bitcoin Stack Exchange

Bitcoin Stack Exchange is one of the first places Optech contributors look for answers to their questions—or when we have a few spare moments to help curious or confused users. In this monthly feature, we highlight some of the top-voted questions and answers posted since our last update.

Preparing for taproot #2: is taproot even worth it for single-sig?

A weekly series about how developers and service providers can prepare for the upcoming activation of taproot at block height 709,632.

Using Optech’s transaction size calculator, we can compare the sizes of different types of single-sig transactions. As expected, transactions using P2WPKH inputs and outputs are much smaller than those using P2PKH inputs and outputs—but, perhaps surprisingly, P2TR transactions are slightly larger than equivalent P2WPKH transactions.

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