Metamask has over 30 million monthly active users. Internal JSON-RPC error occurs when programs fail to communicate properly. JSON-RPC enables computers to send commands and receive responses in JSON format
Solana is a high-speed blockchain for decentralized applications. Network operates on Proof-of-Stake consensus with SOL token. Can scale horizontally without compromising security. Supports custom tokens and NFTs using Rust programming language
Testnet requires Google Chrome browser and Metamask wallet. Users must create new DOP wallet and verify secret recovery phrase. Test tokens include 0.05 SepoliaETH, 1000 Testnet DOP, and 10 crypto assets
Metamask is an Ethereum wallet that supports multiple networks and sidechains. Same wallet can be used across all supported networks with same private key. Tutorial focuses on desktop version of Metamask for Chrome browser
JSON-RPC combines JSON and RPC for remote procedure calls between programs. Metamask uses JSON-RPC for communication with DApps and blockchain networks
USDT is a stablecoin tied to the US dollar. Metamask is a software wallet supporting Ethereum-based assets. Metamask doesn't support USDT from Solana, Ziliqa, or Algorand