An immutableadjective; not able to be changed or altered in any way ledger is a digital record of transactions that cannot be changed or altered retroactively. An immutable ledger is often used in cryptocurrencyCryptocurrency is decentralized digital currency secured by cryptography. Cryptocurrency utilizes cryptographic protocols to record ownership and prevent counterfeits (when ownership... systems to maintain a permanent and tamper-proofTamper-proof refers to the immutability of data on a blockchain ledger. Blockchains utilize cryptographic hashing and consensus mechanisms, making it... record of all blockchainAs a distributed ledger technology (DLT), a blockchain is a digital ledger that can create an immutable record of transactions.... transactions.
See https://analytics4all.org/2018/04/09/blockchain-immutable-ledger/comment-page-1/ [Analytics4All]
