It's possible. With or without 110.
The only thing 110 does is make it non-contiguous, while ensuring it also has to bloat the UTXO set. But it's still accessible to those who know to look for it.
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Bitcoin Optech
Bitcoin Optech Newsletter #379
This week’s newsletter shares an analysis comparing the historical performance of the OpenSSL and libsecp256k1 libraries. Also included are our r...
Did find this though while looking. May make for some amusement in the brief window after the chainsplit before the first 51% attack. Asssuming such a window actually exists.

GitHub
GitHub - djkazic/bpub: encoding data on bitcoin using valid compressed pubkeys
encoding data on bitcoin using valid compressed pubkeys - djkazic/bpub
