Algorithm 1 Add node to blockchain network.

Input: NewNode  Output: UpdatedBlockchain  Initialization: nodeID←NewNode’s unique identifier;  nodePublicKey←NewNode’s public key;  blockchain←Existing blockchain network;  Procedure: NewNode sends a request to join the network;  Request is approved newBlock←CreateGenesisBlock();  newBlock.header.previousHash←blockchain.getLatestBlock().header.blockHash;  newBlock.header.timestamp←CurrentTimestamp();  newBlock.header.nonce←CalculateNonce();  newBlock.header.merkleRoot←CalculateMerkleRoot();  newBlock.header.nodeID←nodeID;  newBlock.header.nodePublicKey←nodePublicKey;  newBlock.header.blockHash←CalculateBlockHash(newBlock.header);  blockchain.addBlock(newBlock)  Broadcast the new block to the network;  Update the blockchain network;  Return UpdatedBlockchain