getbestblockhash (0.18.0 RPC)
blockchain
control
generating
mining
network
rawtransactions
util
wallet
zmq
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/