About Merkle trees:
Simplified Payment Verification (SPV), described in Section 8 of the Bitcoin white paper, uses Merkle paths to let lightweight clients verify transactions without downloading entire blocks.
When a block contains thousands of transactions, proving that one transaction is included requires only a dozen or so hashes, rather than downloading all the transactions. This is important for lightweight wallets.
$BTC 81659.71（-0.68%）
Simplified Payment Verification (SPV), described in Section 8 of the Bitcoin white paper, uses Merkle paths to let lightweight clients verify transactions without downloading entire blocks.
When a block contains thousands of transactions, proving that one transaction is included requires only a dozen or so hashes, rather than downloading all the transactions. This is important for lightweight wallets.
$BTC 81659.71（-0.68%）