I think potential fee subsidies for cleaning up UTXO (and/or penalties
for creating more UTXO than you burn) are worth thinking about. As
Gavin's post ( gavinandresen.ninja/utxo-uhoh ) indicates, UTXO cost is
far higher than block storage, so charging differently for the in/out
mismatches should make good economic sense.
Ross
On 09/05/2015 20:16, Jim Phillips wrote:
On Sat, May 9, 2015 at 2:06 PM, Pieter Wuille <pieter.wui...@gmail.com
<mailto:pieter.wui...@gmail.com>> wrote:
It's a very complex trade-off, which is hard to optimize for all
use cases. Using more UTXOs requires larger transactions, and thus
more fees in general.
Unless the miner determines that the reduction in UTXO storage
requirements is worth the lower fee. There's no protocol level
enforcement of a fee as far as I understand it. It's enforced by the
miners and their willingness to include a transaction in a block.
In addition, it results in more linkage between coins/addresses
used, so lower privacy.
Not if you only select all the UTXOs from a single address. A wallet
that is geared more towards privacy minded individuals may want to
reduce the amount of address linkage, but a wallet geared towards the
general masses probably won't have to worry so much about that.
The only way you can guarantee an economical reason to keep the
UTXO set small is by actually having a consensus rule that
punishes increasing its size.
There's an economical reason right now to keeping the UTXO set small.
The smaller it is, the easier it is for the individual to run a full
node. The easier it is to run a full node, the faster Bitcoin will
spread to the masses. The faster it spreads to the masses, the more
valuable it becomes.
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