A mobile wallet doesn’t have data for the entire chain. How can you confirm that a transfer has actually been included in a block?
Ethereum uses an improved Merkle Patricia Trie to record account state, transactions, and receipts, with the corresponding root hashes stored in block headers.
Key point: lightweight wallets get their data from the node they’re connected to. For large incoming payments, you can cross-check them on several block explorers.
The header of every $BTC block records a Merkle root corresponding to all the transactions in that block.
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