Blockchain can be best defined as a decentralized technology that consists of immutable blocks. These blocks are further secured by the use of cryptography. Hyperledger, on the other hand, are platforms wherein people can collate their programming skills to construct their own blockchain.
Think of blockchains as an assemblage of blocks. These blocks are codified with unmodifiable data and records. These records are basically transactional information that is protected and secured using cryptography.
A blockchain is a distributed ledger whose operations are quite transparent, unlike a traditional ledger whose information is secured and inaccessible. Furthermore, a traditional ledger allows users to modify or reverse the information registered on it. However, the former doesn’t allow that.
The four characteristics that can help you identify a block are hash value, information about transactional data, the nonce value, and the block’s digital signature called a hash. Another way to detect a block is by looking for its unique hash address. It is composed of a hex value and the hex value is made up of 64 characters.
A nonce value is an attribute of a block that can help you identify the same. The nonce value can be defined as a random value that can help you change the hash value. A nonce value is required when the hash value is more than the target.