The listlockunspent RPC returns a list of temporarily unspendable (locked) outputs.
listlockunspent none
*bitcoin-cli help listlockunspent
listlockunspent Returns list of temporarily unspendable outputs. See the lockunspent call to lock and unlock transactions for spending. Result: [ { "txid" : "transactionid", (string) The transaction id locked "vout" : n (numeric) The vout value } ,... ] Examples: List the unspent transactions > bitcoin-cli listunspent Lock an unspent transaction > bitcoin-cli lockunspent false "[{\"txid\":\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\",\"vout\":1}]" List the locked transactions > bitcoin-cli listlockunspent Unlock the transaction again > bitcoin-cli lockunspent true "[{\"txid\":\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\",\"vout\":1}]" As a json rpc call > curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "listlockunspent", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/