All utxos are unique. By convention…

All utxos are unique. By convention they are worth the sum of their unspent outputs. There are various edge cases where they could be worth something slightly different. For example, in an RGB contract that issued an amount of Tether from a trusted party, it could be worth more. If coin joined they would likely lose that value unless you had a specific protocol to keep it going, and enough people bought into it, such that it had utility, e.g. in RGB/Taro smart contracts or verifiable history. IMHO you would have to make a compelling case why that uxto (or chain of uxtos) is more valuable in that the utility must be obvious. Else it could just be a thinly disguised attack. Fortunately complacency is not a word in the bitcoin lexicon. Anything that looks like an attack will be assumed to be such and verified, not trusted. The danger is that in the next halving the security budget is 325 sats/vbyte, and the fees can reach that, leading to potential reorgs. We need a way to stop that. One way would be for bitcoin and nostr to come closer together and for nostr to provide good reliable sources of the recent blocks.