A mobile wallet doesn’t store data for the entire blockchain. How can it confirm that a transfer was actually included in a block?
First, a definition: A Bitcoin block header is only 80 bytes long, and contains the Merkle root for all the transactions in the block.
Here’s why: The beauty of a Merkle tree is that a single short root hash can “lock in” a large number of transactions—any change to even one transaction will be exposed.
The header of every $BTC block records a Merkle root that summarizes all the transactions in that block.
Be skeptical of claims promising high returns.
#BTC
This is for reference only. Proceed at your own risk.
First, a definition: A Bitcoin block header is only 80 bytes long, and contains the Merkle root for all the transactions in the block.
Here’s why: The beauty of a Merkle tree is that a single short root hash can “lock in” a large number of transactions—any change to even one transaction will be exposed.
The header of every $BTC block records a Merkle root that summarizes all the transactions in that block.
Be skeptical of claims promising high returns.
#BTC
This is for reference only. Proceed at your own risk.