If OP found some smart way to capitalize on old addresses, good for him.
I've just seen this thread:
old Bitcoin addresses as 'NFT' on the Bitcoin blockchain - 'signature chain' - I don't profess to follow it at all. However, now I'm wondering if the OP is going to be a pioneer of utilising the ETH wallets?
Then again, it could just be a signature and alt farmer ready to sew their crops and offer ETH as well as staked BTC wallet addresses when peddling their wares.
