The decentralized architecture of blockchain is one of the main pillars of its security. There is no central entity that controls the network, making it difficult for hackers to compromise the entire system. Each block in the blockchain contains the hash of the previous block, creating an interconnected chain of data. If one block is corrupted, the entire chain is affected, making it extremely difficult to manipulate or tamper with.
Blockchain uses cryptography to secure data and protect the women database integrity of transactions. A cryptographic hash function uniquely identifies each block and ensures that the data cannot be changed without detecting the change. In addition, public and private keys are used to sign transactions, ensuring that only authorized parties can initiate and approve transactions on the network.
Consensus and Validation
To ensure transaction integrity, blockchain relies on consensus mechanisms. These mechanisms ensure that all nodes in the network agree on the order of transactions and the state of the blockchain. Consensus algorithms such as Proof-of-Work and Proof-of-Stake help reach agreement and prevent double-digit attacks.
Transparency and Accountability
Blockchain transactions are recorded transparently and permanently in a public ledger. This provides high accountability and traceability, as all activity is recorded and can be verified by anyone with access to the network. This makes fraud and corruption more difficult, as it is harder to hide suspicious activity.