BLOCKCHAIN A blockchain is a timestamped series of

ΤΙ ΕΙΝΑΙ ΤΟ BLOCKCHAIN A blockchain is a time-stamped series of immutable records of data that is managed by a cluster of computers not owned by any single entity. Each of these blocks of data (i. e. block) is secured and bound to each other using cryptographic principles (i. e. chain). Immutability Transparency Decentralization

BLOCK SHA 256 Block #1 Block #2 Block 3 • • • Nonce Data Prev hash Hash

DECENTRALIZATION

TRANSPARENCY P 2 P Network

IMMUTABILITY-PROOF OF WORK Block #1 Block #2 Block #3 Block #4 • Nonce • Data • Prev hash • Hash Data New Hash Proof of Work New Hash

IMMUTABILITY-CONSENSUS

SMART CONTRACT Self-Enforcing agreement embedded in computer code managed by a blockchain.

KYC IN BLOCKCHAIN

MUSIC COPYRIGHTS IN BLOCKCHAIN