was to solve a block including the second transaction, my understanding is that the network would accept the block and thus accept the second transaction. In a 10 minute interval, the probability of a block being found is about 63 (or 1 - e(-1). 3.1k, online, a community dedicated to Bitcoin, the currency of the Internet. This question has been asked separately, here: Does any pool accept higher-fee transactions of a double spend, instead of the earlier one? 1, freshly-mined coins cannot be spent for 100 blocks.
A Bitcoin transaction, by design, will get one confirmation after an average of 10 minutes. For maximum safety, it is recommended that for the irreversible sale of items with value comparable to the block reward, a large number of confirmations (144 blocks 1 day) is required before completing the exchange. After a transaction is broadcast to the Bitcoin network, it may be included in a block that is published to the network. Some mining enterprises may hide their hash power across several mining pools. There is nothing special about the default, often-cited figure of 6 blocks. Contents, the classic bitcoin client will show a transaction as "n/unconfirmed" until the transaction is 6 blocks deep. You might be interested in Bitcoin if you like cryptography, distributed peer-to-peer systems, or economics. With each subsequent block that is found, the number of blocks deep is increased by one.
Average confirmation time of, bitcoin transactions from February 2017 to February 2018 (in minutes) This statistic presents the average confirmation time of, bitcoin transactions from February 2017.
By the link name we would expect that it will show us average time transactions wait for first confirmation.
But it s actually a median time, and only considers transactions which have already confirmed, excluding transactions which may have been sitting in the mempool for hours.
Bitcoin, average block time (minutes) chart.