M9 spv mining bitcoin 8 0 1 0 0 16A8 8 0 0 0 9 1zm. What if miners will use SPV-mining on the top of this block?
Segwit nodes never accept blocks that have a witness commitment but no witness section. Miners that don’t validate a block before mining on top of it violate the security assumptions of the network. SPV mining is not too significant. There is a valid PoW block at height N with valid transactions came from 0. What block height will you start to mine?
Segwit transactions are non-standard to old versions very far back. 9 node will never mine them unless they’re modified to do so. We are talking about transactions in block. However, mining such an invalid block will only happen intentionally, and is costly.
20x faster, so confirmations on top are very unlikely. However, mining such an invalid block will only happen intentionally, and is costly 12. I will pay these funds to a mining pool for creating a valid block with my content, broadcasting “standard” part to a network and withholding segwit part of it. Not the answer you’re looking for? Browse other questions tagged segregated-witness or ask your own question.