getbestblockhash (0.21.0.0 RPC) getbestblockhash Returns the hash of the best (tip) block in the most-work fully-validated chain. Result: "hex" (string) the block hash, hex-encoded Examples: > elements-cli getbestblockhash > curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "getbestblockhash", "params": []}' -H 'content-type: text/plain;' http://127.0.0.1:7041/