Blockchain technology its ethereum,applications and wallet and riot blockchain in 2025

Introduction Blockchain is a decentralized digital ledger that securely stores records across a network of computers in a way that is transparent, immutable, and resistant to tampering. Each ˝block˝ contains data, and blocks are linked in a chronological ˝Chain˝. A blockchain is a disturbed databased or ledger shared across a computer network’s nodes. They are best known for their crucial role in cryptocurrency systems, maintaining a secure and decentralized record of transactions, but they are not limited to cryptocurrency uses. Blockchains can be used to make data in any industry immutable meaning it cannot be altered. Since a block can’t be changed, the only trust needed is at the point where a user or program enters data. This reduces the need for trusted third parties, such as auditors or other humans, who add costs and can make mistakes. Since Bitcoin’s introduction in 2009, blockchain uses have exploded via the creation of various crypto...