There is incentive because of artificially distorted block weight rules. It is favourable for a miner to choose a segwit tx over a non segwit tx as they can fit more of them into a block and earn more fees.
On Nov 21, 2017 11:06 PM, "Dan Bryant via bitcoin-dev" < bitcoin-dev@lists.linuxfoundation.org> wrote: > Is there any incentive for miners to pick segwit transactions over > non-segwit transaction. Do they require less, equal, or more compute to > process? > > On Nov 20, 2017 11:46 AM, "Johnson Lau via bitcoin-dev" < > bitcoin-dev@lists.linuxfoundation.org> wrote: > > We can’t “just compute the Transaction ID the same way the hash for > signing the transaction is computed” because with different SIGHASH flags, > there are 6 (actually 256) ways to hash a transaction. > > Also, changing the definition of TxID is a hardfork change, i.e. everyone > are required to upgrade or a chain split will happen. > > It is possible to use “normalised TxID” (BIP140) to fix malleability > issue. As a softfork, BIP140 doesn’t change the definition of TxID. > Instead, the normalised txid (i.e. txid with scriptSig removed) is used > when making signature. Comparing with segwit (BIP141), BIP140 does not have > the side-effect of block size increase, and doesn’t provide any incentive > to control the size of UTXO set. Also, BIP140 makes the UTXO set > permanently bigger, as the database needs to store both txid and normalised > txid > > On 21 Nov 2017, at 1:24 AM, Praveen Baratam via bitcoin-dev < > bitcoin-dev@lists.linuxfoundation.org> wrote: > > Bitcoin Noob here. Please forgive my ignorance. > > From what I understand, in SegWit, the transaction needs to be serialized > into a data structure that is different from the current one where > signatures are separated from the rest of the transaction data. > > Why change the format at all? Why cant we just compute the Transaction ID > the same way the hash for signing the transaction is computed? > > -- > Dr. Praveen Baratam > > about.me <http://about.me/praveen.baratam> > _______________________________________________ > > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev > > > > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev > > > > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev > >
_______________________________________________ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
