getbestblockhash

Returns the hash of the best (tip) block in the longest blockchain.

Result: “hex” (string) the block hash hex encoded

Examples:

bitcoin-cli getbestblockhash curl —user myusername —data-binary ’{“jsonrpc”: “1.0”, “id”:“curltest”, “method”: “getbestblockhash”, “params”: [] }’ -H ‘content-type: text/plain;’ http://127.0.0.1:8332/