user20846: Given a business requirement of a verified list of wallets that the network has agreed on. can the network confirm a new type of utxo is from a wallet on this list and reject the new type of utxo if not on this list? While still letting the network manage normal utxo's as usual.
Is this possible given the proper modification to a clone coin.

user7272: This would be possible with the cooperation of miners. Miners decide which transactions to include in their blocks, and which to ignore. Currently, this is largely done based on the feerate.
If you have the support of all miners, you could effectively operate a whitelist-only network. If even one miner rejects your proposal, they will continue mining blocks which contain all transactions.
You could fork the Bitcoin Protocol to include a whitelist, but no one would use it.

20846: <p>Given a business requirement of a verified list of wallets that the network has agreed on. can the network confirm a new type of utxo is from a wallet on this list and reject the new type of utxo if not on this list? While still letting the network manage normal utxo's as usual.</p>

<p>Is this possible given the proper modification to a clone coin.</p>
 7272: <p>This would be possible with the cooperation of miners. Miners decide which transactions to include in their blocks, and which to ignore. Currently, this is largely done based on the feerate.</p>

<p>If you have the support of all miners, you could effectively operate a whitelist-only network. If even one miner rejects your proposal, they will continue mining blocks which contain all transactions.</p>

<p>You could fork the Bitcoin Protocol to include a whitelist, but no one would use it.</p>
