¿Qué es Transaction?
A signed instruction consuming one or more UTXOs and creating new ones. Once confirmed it cannot be reversed.
A transaction lists inputs (references to UTXOs plus signatures proving the right to spend them) and outputs (new UTXOs with their spending conditions). Whatever value is left over after outputs becomes the fee.
Irreversibility is a design property, not a bug: it is what removes the need for a trusted intermediary. It is also why sending to a wrong address is unrecoverable, and why address verification matters.
Términos relacionados
UTXO
An unspent transaction output: a discrete chunk of bitcoin locked to a condition. Bitcoin has no account…
Cómo funcionaConfirmation
A block containing your transaction. Each subsequent block adds another, making reversal exponentially more…
Transactions & feesTasa de comisión (sat/vB)
What a transaction pays per virtual byte of the space it occupies. Miners prioritise by fee rate, not by…
Transactions & feesRBF (replace-by-fee)
A signalling mechanism that lets an unconfirmed transaction be replaced by a version paying a higher fee.
Esta definición forma parte del glosario de Bitcoin Logical. Para la explicación completa, empieza por Aprender, o consulta las cifras en vivo en La Señal Bitcoin.