Qu’est-ce que Merkle root ?
A single hash in the block header that commits to every transaction in the block, built by hashing transactions together in pairs up a tree.
Because the root depends on every transaction, altering any one of them changes the root and therefore the block hash. The tree structure also allows a compact proof that a specific transaction is in a block without downloading the whole block.
That property is what makes lightweight verification possible for wallets that do not store the full chain.
Termes liés
Bloc
A batch of transactions accepted into the ledger together, produced roughly every ten minutes and limited to…
Comment ça marcheHash
A fixed-length fingerprint of arbitrary data. Bitcoin uses SHA-256: the same input always gives the same…
RéseauSPV (simplified payment verification)
Verifying that a transaction is in a block using merkle proofs, without downloading the full chain.
Cette définition fait partie du glossaire Bitcoin Logical. Pour l’explication complète, commencez par Apprendre, ou consultez les chiffres en direct sur Le Signal Bitcoin.