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A Private blockchain is a to give restriction for keeping.
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A Private blockchain is a to give restriction for keeping.
Explore Courses. Blockchain prevents double-spending by confirming a transaction by multiple parties before the actual transaction is written to the ledger. However, ledgers are visible to all participants in the consortium Blockchain. They are also able to reverse transactions that have already confirmed while they were in control of the network, leading to a double-spending problem. It verifies the transaction.