RPC//JSON-RPC

- Format: `{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}`.

Format: {"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}.

Response: {"jsonrpc":"2.0","id":1,"result":"0x87"} — values are hex-encoded.

Key methods: eth_getBalance, eth_blockNumber, eth_sendRawTransaction, eth_getTransactionReceipt.

Querying one node returns state for any account — the full world state is replicated on every full node.