dumpcoins dump all the UTXO tracked by the wallet. Result: {} (empty JSON object) Examples: > bitcoin-cli dumpcoins > curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "dumpcoins", "params": []}' -H 'content-type: text/plain;' http://127.0.0.1:8332/