Fascinating! But that pull request is still pending right? I don't think they will be standard as outputs til it is merged

supertestnet

that nonstandard address should appear on bitcoin explorers as the plain text term "non-standard" but the transaction author knew that mempool.space has a naive/buggy address parser and exploited that to make the address look like a valid-but-incredibly-short segwit address

I believe that address is actually an ephemeral anchor output: 

https://github.com/bitcoin/bitcoin/pull/30352/files

IIUC they are standard to create at the moment. It's spending them that is non-standard.

bitcoin

Analysis of 0xB10C's weird bitcoin transaction

> that nonstandard address should appear on bitcoin explorers as the plain text term "non-standard" but the transaction author knew that mempool.space has a naive/buggy address parser and exploited that to make the address look like a valid-but-incredibly-short segwit address

I believe that address is actually an ephemeral anchor output: https://github.com/bitcoin/bitcoin/pull/30352/files

IIUC they are standard to create at the moment. It's spending them that is non-standard.