O que é SPV (simplified payment verification)?
Verifying that a transaction is in a block using merkle proofs, without downloading the full chain.
Described in the white paper, SPV lets lightweight wallets confirm inclusion by checking block headers and a merkle branch. It is far cheaper than full validation.
The trade-off is that an SPV client checks that a transaction was included, not that the block obeyed every consensus rule. It trusts that the majority of hashrate is following the rules.
Termos relacionados
Merkle root
A single hash in the block header that commits to every transaction in the block, built by hashing…
RedeFull node
A node that downloads and validates the entire chain from genesis rather than trusting anyone else's summary…
RedeNode
A computer running Bitcoin software that independently validates every block and transaction against the…
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.