A hard fork is an extreme break from a previous protocol on a blockchain that renders invalid blocks valid, or
valid blocks invalid.
Not exact matches
If they found a
valid block on top of an
invalid block, then they would have all got banned from the network, and we might have ended up with a sort of network split, where 60 % of the miners are off on their own chain,» he said.
Due to the risk of missing out on
valid clicks,
blocking IP addresses from your Adwords account should be done as a last resort when you have compelling evidence that you're receiving
invalid clicks.
A hard fork is a radical change to the protocol that makes previously
invalid blocks / transactions
valid, or vice-versa, and as such requires all nodes or users to upgrade to the latest version of the protocol software.
Transactions or
blocks that would have been
valid under the old rules become
invalid under the new rules.
Lombrozo: «Soft forks happen when
blocks that used to be
valid become
invalid according to the new rules.
We have
invalid blocks that become
valid under the new rules, and this creates a network fork that can go on forever.
With a hardfork, all participants must upgrade to the new protocol as previously
invalid blocks and transactions are now
valid.
Originally, at least, the term referred to a change to the Bitcoin protocol that makes previously
invalid blocks or transactions
valid.
Hard consensus forks render previously
invalid blocks valid, and make non-upgrading nodes incompatible.
A change to the Bitcoin protocol that makes previously
invalid blocks / transactions
valid, and therefore requires all users to upgrade.
Blocks which were
invalid by the old protocol become
valid in the new one.
The better option denotes soft forks or changes to app protocol where only previously
valid block transactions become
invalid.
When a
block is proposed, other miners check whether it is
valid or
invalid.
You may also sometimes hear mention of a «soft fork», a change to the software protocol where only previously
valid blocks / transactions are made
invalid.