O que é Confirmation?
A block containing your transaction. Each subsequent block adds another, making reversal exponentially more expensive.
One confirmation means included in the most recent block. Six is a common convention for large amounts, but it is a convention rather than a protocol rule.
The right number depends on what is at stake. Reversing a transaction requires out-mining the network from before it, so the appropriate depth scales with the value and the plausibility of an attacker.
Termos relacionados
Bloco
A batch of transactions accepted into the ledger together, produced roughly every ten minutes and limited to…
Como funcionaReorganisation (reorg)
When nodes switch to a different chain with more accumulated work, discarding one or more recently accepted…
Como funcionaTransaction
A signed instruction consuming one or more UTXOs and creating new ones. Once confirmed it cannot be reversed.
Como funcionaDouble-spend
Spending the same coins twice. Preventing it without a trusted third party is the problem Bitcoin was built…
Esta definição faz parte do glossário da Bitcoin Logical. Para a explicação completa, comece por Aprender, ou veja os números ao vivo em O Sinal Bitcoin.