This template illustrates the fundamental structure of a blockchain. It features three blocks (Block 1, Block 2, Block 3) with headers and the hash value of the previous block for each. The "CONNECTION OF BLOCKS" is clearly indicated, demonstrating how each block is linked to the previous one through its hash value. On the right side, there are four colored boxes with placeholder text, possibly representing additional data or features related to the blockchain. This visual aid helps in grasping the core concepts of blockchain technology, such as block chaining and data integrity.