verifychain (0.16.0 RPC) blockchain getbestblockhash getblock getblockchaininfo getblockcount getblockhash getblockheader getchaintips getchaintxstats getdifficulty getmempoolancestors getmempooldescendants getmempoolentry getmempoolinfo getrawmempool gettxout gettxoutproof gettxoutsetinfo preciousblock pruneblockchain savemempool verifychain verifytxoutproof control getmemoryinfo help logging stop uptime generating generate generatetoaddress mining getblocktemplate getmininginfo getnetworkhashps prioritisetransaction submitblock network addnode clearbanned disconnectnode getaddednodeinfo getconnectioncount getnettotals getnetworkinfo getpeerinfo listbanned ping setban setnetworkactive rawtransactions combinerawtransaction createrawtransaction decoderawtransaction decodescript fundrawtransaction getrawtransaction sendrawtransaction signrawtransaction util createmultisig estimatefee estimatesmartfee signmessagewithprivkey validateaddress verifymessage wallet abandontransaction abortrescan addmultisigaddress backupwallet bumpfee dumpprivkey dumpwallet encryptwallet getaccount getaccountaddress getaddressesbyaccount getbalance getnewaddress getrawchangeaddress getreceivedbyaccount getreceivedbyaddress gettransaction getunconfirmedbalance getwalletinfo importaddress importmulti importprivkey importprunedfunds importpubkey importwallet keypoolrefill listaccounts listaddressgroupings listlockunspent listreceivedbyaccount listreceivedbyaddress listsinceblock listtransactions listunspent listwallets lockunspent move removeprunedfunds rescanblockchain sendfrom sendmany sendtoaddress setaccount settxfee signmessage walletlock walletpassphrase walletpassphrasechange verifychain ( checklevel nblocks ) Verifies blockchain database. Arguments: 1. checklevel (numeric, optional, 0-4, default=3) How thorough the block verification is. 2. nblocks (numeric, optional, default=6, 0=all) The number of blocks to check. Result: true|false (boolean) Verified or not Examples: > bitcoin-cli verifychain > curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "verifychain", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/