A intermediary (broker), for instance, helps the buyer and seller connect when using India's traditional land registration procedure. A broker should be contacted if someone wants to buy or sell a home. Brokers will prepare and compile any physical documents needed to fulfil contracts as proof of ownership. Brokers will check to see if the land or property is registered with the appropriate government agency and meets all requirements. Every block in a blockchain data structure is connected to every other block this distributed data ledger records digital transactions for public consumption permanently and the data in a block is immutable due to the use of hashing algorithms, cryptographic techniques, and consensus protocols before a block is added to the blockchain.