Blockchain is a secure, decentralized digital ledger technology used to record transactions transparently and immutably across various industries, from finance to supply chain and healthcare. It enables peer-to-peer transfers, removes the need for intermediaries, and ensures data integrity through cryptographic security.
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A blockchain is a decentralized, public, and distributed digital ledger that records transactions across many computers. It's made up of a chain of blocks, each containing a set of data, that are linked together using cryptography.
Blockchain is a distributed database of immutable records called blocks, which are secured using cryptography. Refer to the video to see the various attributes of a block.
Blockchain distributed ledgers are irreversible. Information registered on a distributed ledger cannot be modified whereas on a traditional ledger it is reversible.
Blockchain uses cryptography to secure users’ identities and ensure transactions are done safely with a hash function.
