The blockchain is effectively a chain of blocks. There are multiple components to this decentralized public ledger, notably the storage of pertinent information, differentiating characteristics between blocks, and details of parties to the transaction. For the blockchain to work, transactions must take place. Then, the transaction must be verified and stored in a block. Each block is then assigned a hash. This is a unique code which identifies the transaction. Once the block has been added to a blockchain, anyone can see it. Given that the contents of the distributed, decentralized ledger a.k.a. the blockchain are visible to anyone on the network, one must question the anonymity of such transactions.

Each connected computer on the Internet receives a copy of the blockchain. This automatically updates in real-time when new blocks are added. Since every computer on the blockchain network has a copy of the blockchain, there can be thousands, perhaps even millions of identical copies. This makes it virtually impossible to…

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Source: https://thebitcoinnews.com/anonymity-on-the-blockchain-how-to-control-your-digital-footprint/