Blockchain technology operates on a decentralized network, where numerous nodes each maintain a copy of the ledger. This structure ensures that the system remains transparent and immutable. When a new transaction is made, it is broadcast to all the nodes within the network.

Each node then verifies the transaction against its copy of the ledger. Once verified, the transaction is added to a block, which is then appended to the existing blockchain in all nodes. This process ensures that every node has an up-to-date and identical copy of the ledger, making it nearly impossible for any single entity to alter past records.

The decentralized nature of blockchain means that no central authority controls the data. Instead, control is distributed across all participating nodes. This distribution enhances security because a hacker would need to compromise a majority of the nodes simultaneously to alter the ledger, which is practically infeasible given the vast number of nodes typically involved.

Transparency is another critical feature of blockchain technology. Since the ledger is public and available to all nodes, anyone can verify transactions at any time. This openness helps build trust among users, as they can independently confirm the integrity of the blockchain.

Immutability, or the inability to change or delete past records, is achieved through cryptographic hashing. Each block contains a hash of the previous block, linking them together in a chain. Any attempt to alter a block would change its hash, breaking the chain and alerting the network to the tampering.

In summary, blockchain's decentralized network of nodes ensures that the ledger remains transparent and immutable. By distributing copies of the ledger across numerous nodes and using cryptographic methods, blockchain technology provides a secure, trustworthy, and unalterable record of transactions.

Blockchain technology operates on a decentralized network, where numerous nodes each maintain a copy of the ledger. This structure ensures that the system remains transparent and immutable. When a new transaction is made, it is broadcast to all the nodes within the network.

Each node then verifies the transaction against its copy of the ledger. Once verified, the transaction is added to a block, which is then appended to the existing blockchain in all nodes. This process ensures that every node has an up-to-date and identical copy of the ledger, making it nearly impossible for any single entity to alter past records.

The decentralized nature of blockchain means that no central authority controls the data. Instead, control is distributed across all participating nodes. This distribution enhances security because a hacker would need to compromise a majority of the nodes simultaneously to alter the ledger, which is practically infeasible given the vast number of nodes typically involved.

Transparency is another critical feature of blockchain technology. Since the ledger is public and available to all nodes, anyone can verify transactions at any time. This openness helps build trust among users, as they can independently confirm the integrity of the blockchain.

Immutability, or the inability to change or delete past records, is achieved through cryptographic hashing. Each block contains a hash of the previous block, linking them together in a chain. Any attempt to alter a block would change its hash, breaking the chain and alerting the network to the tampering.

In summary, blockchain's decentralized network of nodes ensures that the ledger remains transparent and immutable. By distributing copies of the ledger across numerous nodes and using cryptographic methods, blockchain technology provides a secure, trustworthy, and unalterable record of transactions.