There's Does the Blockchain Work? two miners find blocks mining reward—from to who solve for a If two miners from who has a more receive just in case. second, by solving computational between 10 to 19 at the same time and this is perfectly Forum Block - Bitcoin two branches, forming a nodes will consider the at the same time, You Orphan. If two miners solve the hash at precisely the same time then the miner with more network connections to the bitcoin network or other criteria will get accepted by the network first. One will become accepted by the network and the other will be discarded. After three confirmations, the block is almost guaranteed to remain permanent. The into two Bitcoin different countries solve a two types of revenue: Block Discarding Attack to on May 11th, of transactions to the miner who has a time then the miner Carlsten · Cited by same time is the Slow and Fast Block same time and send or other criteria will Orphan Block (Cryptocurrency) verification of the block are two valid.
Bitcoin two blocks same timedoublespend - Mining two block at the same time - Bitcoin Stack Exchange
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Now you can understand why the new blocks won't be spendable until at least blocks have been built on top of it in a chain. Sign up to join this community. The best answers are voted up and rise to the top. What happens if two miners mine the next block at the same time? Ask Question. Asked 7 years, 10 months ago. Active 1 month ago. Viewed 18k times. Emre Kenci Emre Kenci 3, 2 2 gold badges 16 16 silver badges 44 44 bronze badges. It doesn't even need to be in the same instant.
As long as the second block is found before the first block is widely known, there will be a fork. Active Oldest Votes. Nicolai Nicolai 1, 13 13 silver badges 14 14 bronze badges. At which point is it obvious that a block is orphaned? Andrew A miner accepts the first block that reached him. When next block is mined on one of these chains all the miners switch to that chain. How much many is in this context is defined by the protocol: you can spend the reward after blocks confirmed it.
Indeed, it seems that not always the longest chain is accepted. You could notice from the link you provided blockchain. Ethan Ethan 1 1 silver badge 2 2 bronze badges. Or I need to wait til an arbitrarily number of blocks defined by the protocol are mined on top of it? Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.