Would like to read it, if you can find it again :-)
Publish your nickname to the blockchain, then look it up. Could use a specific address for SPV lookup or a Memo-like OP_RETURN for BitDB type lookup.
How to prevent multiple people using the same name?
First confirmed person wins.You can’t prevent it with a decentralized struct.Obviously whatever is submitting the registration will check for it.Only purposeful dupes will show up.
