getbestblockhash (0.18.1.5 RPC) getbestblockhash Returns the hash of the best (tip) block in the longest blockchain. 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/