Ledger is the English translation of "Ledger. This is used as a synonym for "Blockchain.

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A ledger is a record of transactions. A blockchain is also a record of transactions but a key difference is how it is stored. A ledger is originally owned by a single party, such as a merchant or a government. Blockchains often work in a decentralized way, in which case there is no single party that can make adjustments. A blockchain is often stored and maintained in different places. For this reason, a blockchain is often called a shared Ledger.