Subject: Re: [bitcoin-dev] P2WPKH Scripts, P2PKH Addresses, and Uncompressed Public Keys

From: Mark Friedenbach <[email-masked]>
Date: Mon, 28 Aug 2017 14:33:52 -0700

> On Aug 28, 2017, at 8:29 AM, Alex Nagy via bitcoin-dev <[email-masked]> wrote:
> 
> If Alice gives Bob 1MsHWS1BnwMc3tLE8G35UXsS58fKipzB7a, is there any way Bob can safely issue Native P2WPKH outputs to Alice?
> 

No, and the whole issue of compressed vs uncompressed is a red herring. If Alice gives Bob 1MsHWS1BnwMc3tLE8G35UXsS58fKipzB7a, she is saying to Bob “I will accept payment to the scriptPubKey [DUP HASH160 PUSHDATA(20)[e4e517ee07984a4000cd7b00cbcb545911c541c4] EQUALVERIFY CHECKSIG]”.

Payment to any other scriptPubKey may not be recognized by Alice.