Questions on: 0-confirmation

I created a wallet in blockchain. info android app. I bought 0
Bitcoin is the currency of the Internet: a distributed, worldwide, decentralized digital money. Unlike traditional currencies such as dollars, bitcoins are issued and managed without any central authority whatsoever: there is no government, company,
Hey there, I have sent a transaction from a P2SH address, and I missed the transaction fee I wanted to include by factor 10. So, the transaction won't be included in any block, soon. Funny thing is: I have sent the transaction using the standard Bitc
A Bitcoin transaction can fail to confirm, or become “stuck,” for a number of reasons. Stuck transactions are usually confirmed after several days, but sometimes waiting isn't an option. Fortunately, many stuck transactions can be cleared using nothi
A successful race attack is one where the payment recipient's node receives a spend transaction yet the next block that is mined has a different transaction that spends the same coin. Thus the payment recipient's transaction will not confirm and the
The original design assumes a common behavior of processing the incoming transaction on FIFO basis. That means the first transaction received by a miner wins and all conflicting transactions received after it will be ignored (no matter if the first o
With the exception of freshly mined coins, it is possible to spend unconfirmed funds - though it depends on which wallet you use. The bitcoin-core, cli version, will by default only spend funds with at least one confirmation, but it's possible to ove
There are no such arbitrators currently, as far as I know. There have been plans discussed to create trusted sources of Bitcoins. The idea would be that I'd hold my Bitcoins with an e-wallet service and ask them to transfer my coins to you